STIHL RMI 422 Series Compact Robotic Mower With Mulching Function Instruction Manual

: June 3, 2024
: STIHL

Table of Contents

RMI 422 Series Compact Robotic Mower With Mulching Function
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RMI 422 Series Compact Robotic Mower With Mulching Function

STIHL RMI 422, RMI 422 P, RMI 422 PC
EN Instruction manual ES Manual de instrucciones PT Manual de utilização SL Navodila za uporabo SK Návod na obsluhu CS Návod k pouzití

RMI 422.2

RMI 422.2 P

RMI 422.2 PC

0478 131 9263 D. G21. TIM-13932-001

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Dear Customer, Thank you for choosing STIHL. We develop and manufacture our quality products to meet our customers’ requirements. The products are designed for reliability even under extreme conditions. STIHL also stands for premium service quality. Our specialist dealers guarantee competent advice and instruction as well as comprehensive service support. We thank you for your confidence in us and hope you will enjoy working with your STIHL product.
Dr. Nikolas Stihl
IMPORTANT: READ BEFORE USE AND KEEP IN A SAFE PLACE.

1. Table of contents
Notes on the instruction manual General Country-specific versions Instructions for reading the instruction manual
Machine overview Robotic mower Docking station Display
How the robotic mower works Operating principle
Safety devices STOP button Disabling device Protective covers Impact sensor Lifting protection Tilt sensor Display illumination PIN request GPS protection
For your safety General Clothing and equipment Warning dangers caused by electrical current Battery Transporting the machine Before initial operation Programming During operation Maintenance and repairs Storage for prolonged periods without operation

Disposal

Description of symbols

Standard equipment

4 Initial installation

Notes on the docking station

Docking station connections

Connecting the power cable to the

docking station

Installation material

Adjusting the cutting height

Notes on initial installation

Setting the language, date and

time

Installing the docking station

Routing the perimeter wire

Connecting the perimeter wire

Linking the robotic mower and

docking station

Checking installation

Programming the robotic mower 38

Completing initial installation

First mowing operation after initial

installation

11 iMOW® app

11 Menu

Operating instructions

Status screen

Information area

Main menu

Start

Drive home

Mowing plan

Settings

iMOW® machine settings

Setting the rain sensor

Setting the status screen

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Printed on chlorine-free bleached paper. Paper is recyclable. Cover is halogen free.

Installation

Setting starting points

Direct drive home

Safety

Service

Information

Perimeter wire

Planning routing of the perimeter

wire

Making a sketch of the mowing

area

Routing the perimeter wire

Connecting the perimeter wire

Wire clearances use

iMOW® Ruler

Acute corners

Confined areas

Installing linking sections

No-go areas

Secondary areas

Corridors

Guide loops for offset drive home 58

Accurate mowing along edges

Sloping terrain along the perimeter

wire

Installing reserve wire

Using wire connectors

Narrow edge clearances

Docking station

Docking station controls

Notes on mowing

General

Mulching

Active times

Mowing duration

Home area (RMI 422 PC)

Operating the machine

Preparation

Flap

Adapting the programming

Automatic mowing

Mowing independently of active

times

Docking the robotic mower

Charging the battery

Maintenance

Maintenance schedule

Cleaning the machine

Checking the mowing blade wear

limits

Removing and installing the

mowing blade

Sharpening the mowing blade

Removing and installing the carrier

plate

Finding a wire break

Storage and winter break

Removing the docking station

Standard spare parts

Accessories

Minimising wear and preventing

damage

Environmental protection

Removing the battery

Transport

Lifting or carrying the machine

Securing the machine (lashing)

Declaration of conformity

EU declaration of conformity Cordless, electric robotic mower (RMI) with docking station (ADO) 75

UKCA-Declaration of Conformity

STIHL RMI 422.2, RMI 422.2 P,

RMI 422.2 PC Cordless, Electric

Robotic Mower

Technical specifications

Messages

Troubleshooting

Service schedule

Handover confirmation

Service confirmation

Installation examples

Open source software

2. Notes on the instruction manual

2.1 General
This instruction manual constitutes original manufacturer’s instructions in the sense of EC Directive 2006/42/EC.
STIHL is continually striving to further develop its range of products; we therefore reserve the right to make alterations to the form, technical specifications and equipment level of our standard equipment. For this reason, the information and illustrations in this manual are subject to alterations.
This instruction manual may describe models that are not available in all countries.
This instruction manual is protected by copyright. All rights reserved, especially the right of reproduction, translation and processing using electronic systems.
2.2 Country-specific versions
STIHL supplies machines with different plugs and switches, depending on the country of sale.

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Machines with European plugs are shown in the illustrations. Machines with other types of plug are connected to the mains in a similar way.
2.3 Instructions for reading the instruction manual
Illustrations and texts describe specific operating steps.
All symbols which are affixed to the machine are explained in this instruction manual.
Viewing direction:
Viewing direction when “left” and “right” are used in the instruction manual: the user is standing behind the machine and is looking forwards in the direction of travel.
Section reference:
References to relevant sections and subsections for further descriptions are made using arrows. The following example shows a reference to a section: (Ö 3.)
Designation of text passages:
The instructions described can be identified as in the following examples.
Operating steps which require intervention on the part of the user:
Release bolt (1) using a screwdriver, operate lever (2)…
General lists:
Use of the product for sporting or competitive events

Texts with added significance:

Text passages with added significance are identified using the symbols described below in order to especially emphasise them in the instruction manual:

Danger Risk of accident and severe injury to persons. A certain type of behaviour is necessary or must be avoided.

Warning Risk of injury to persons. A certain type of behaviour prevents possible or probable injuries.

Caution Minor injuries or material damage can be prevented by a certain type of behaviour.

Note Information for better use of the machine and in order to avoid possible operating errors.

Texts relating to illustrations:

Some Illustrations which are necessary for use of the machine can be found at the front of this instruction manual.

The camera symbol serves to link

the figures on the illustration pages with the corresponding text

passages in the instruction manual.

Illustrations with text passages:

Operating steps relating directly to the illustration can be found immediately after the illustration, with a corresponding reference to the item numbers.

Example:

The control pad (1) serves for navigation in the menus. Settings are confirmed and menus opened using the OK button (2). Menus can be exited again using the Back button (3).

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3. Machine overview
3.1 Robotic mower

1 Movably mounted hood (Ö 5.4), (Ö 5.5)
2 Impact protector 3 Charging contacts:
Connecting contacts to the docking station 4 Front carrying handle (integrated in the movable hood) (Ö 21.1) 5 STOP button (Ö 5.1) 6 Flap (Ö 15.2) 7 Drive wheel
6

8 Rear carrying handle (integrated in the movable hood) (Ö 21.1)
9 Rain sensor (Ö 11.11)
10 Rotary handle for cutting height adjustment (Ö 9.5)
11 Identification plate with machine number
12 Front wheel 13 Dual-ground mowing blade (Ö 16.3)
14 Mowing deck

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3.2 Docking station

1 Floor plate
2 Cable guides for retaining the perimeter wire (Ö 9.10)
3 Power supply unit (dependent on robotic mower type and countryspecific version)
4 Removable cover (Ö 9.2)
5 Charging contacts: Connecting contacts to the robotic mower
6 Control panel with button and LED (Ö 13.1)
7 Button
8 LED display

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3.3 Display
1 Graphical display 2 Control pad:
Navigating in menus (Ö 11.1) 3 OK button:
Navigating in menus (Ö 11.1) 4 Back button:
Navigating in menus
8

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4. How the robotic mower works
4.1 Operating principle

The robotic mower (1) is designed for the automatic mowing of lawns. It mows the lawn in randomly selected paths.
In order for the robotic mower to detect the borders of the mowing area A, a perimeter wire (2) must be routed around that area. A wire signal generated by the docking station (3) flows through this perimeter wire.
Solid obstacles (4) in the mowing area are reliably detected by the robotic mower by means of an impact sensor. Areas (5) that
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the robotic mower is not to enter and obstacles that need to be avoided must be separated from the remaining mowing area using the perimeter wire.
When automatic mowing is switched on, the robotic mower independently leaves the docking station and mows the lawn during the active times (Ö 14.3). The robotic mower automatically travels to the docking station to recharge the battery. If the mow plan type “Standard” is selected, the robotic mower mows and

charges throughout the entire active time. If the mow plan type “Dynamic” is selected, the number and duration of mowing and charging operations within the active times are adapted fully automatically.
When automatic mowing is switched off and for mowing operations independent of active times, a mowing operation can be activated in the “Start” menu. (Ö 11.5)
9

The STIHL robotic mower can be operated reliably and without interference in close vicinity to other robotic mowers. The wire signal meets the EGMF (European Garden Machinery Federation) standard with regard to electromagnetic emissions.
5. Safety devices
The machine is equipped with several safety devices for safe operation and for the prevention of improper use.
Risk of injury! If a safety device is found to be defective, the machine must not be operated. Consult a specialist dealer; STIHL recommends STIHL specialist dealers.
5.1 STOP button
When the red STOP button on the top of the robotic mower is pressed, operation of the machine is stopped immediately. The mowing blade comes to a standstill within a few seconds and the message “STOP button pressed” appears on the display. The robotic mower cannot be operated and is safe while the message is active. (Ö 24.)
When automatic mowing is switched on, following confirmation of the message with OK, the system enquires whether automatic operation is to be continued. If the response is Yes, the robotic mower continues to mow the mowing area in accordance with the mowing plan.

If the response is No, the robotic mower remains stationary in the mowing area and automatic mowing is switched off. (Ö 11.7)
Pressing and holding the STOP button also activates the disabling device. (Ö 5.2)

Unlock the robotic mower using the illustrated button combination. For this purpose, press the OK button and the Back button in the sequence shown on the display.

5.2 Disabling device
The robotic mower must be disabled prior to any maintenance or cleaning work, prior to transportation and prior to inspection. The robotic mower cannot be operated when the disabling device is activated.
Activating the disabling device:
Press and hold the STOP button
in the More menu,
in the Safety menu.
Activating the disabling device via the More menu:
In the “More” menu, select the “Lock iMOW®” entry and confirm with the OK button. (Ö 11.8)
Activating the disabling device via the Safety menu:
In the “More” menu, open the “Settings” and “Safety” submenus. (Ö 11.16)
Select the “Disab. device” entry and confirm with the OK button.
Deactivating the disabling device:
When required, wake up the machine by pressing any button.

5.3 Protective covers
The robotic mower is equipped with protective covers that prevent inadvertent contact with the mowing blade and the clippings. These include, in particular, the hood.
5.4 Impact sensor
The robotic mower is equipped with a movable hood which serves as an impact sensor. During automatic operation, it immediately comes to a standstill if it contacts a solid obstacle which has a specific minimum height (8 cm) and is firmly attached to the ground. It then turns to face another direction and continues mowing. If the impact sensor is triggered too frequently, the mowing blade is also stopped.
Impacts against obstacles occur with a certain force. Sensitive obstacles, e.g. light objects such as small flower pots, can therefore be knocked over or damaged.
STIHL recommends removing obstacles or blocking them off by means of no-go areas. (Ö 12.9)

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5.5 Lifting protection
If the robotic mower is lifted by the hood, mowing is stopped immediately. The mowing blade comes to a standstill within a few seconds.
5.6 Tilt sensor
If the permissible slope inclination is exceeded during operation, the robotic mower immediately changes its direction of travel. In the event of a rollover, the selfpropulsion and mowing motor are switched off.
5.7 Display illumination
The display illumination is activated during operation. Thanks to this illumination, the robotic mower is easily recognisable, even in darkness.
5.8 PIN request
When the PIN request is activated, an alarm signal sounds when the robotic mower is lifted unless the PIN code is entered within one minute. (Ö 11.16)
The robotic mower can only be operated in conjunction with the docking station supplied. A further docking station must be linked with the robotic mower. (Ö 9.11)
STIHL recommends that one of the safety levels “Low”, “Medium” or “High” be set. This ensures that unauthorised people cannot operate the robotic mower using other docking stations and are unable to change settings or the programming.

5.9 GPS protection
The model RMI 422 PC is equipped with a GPS receiver. When GPS protection is activated, the owner of the machine is notified if the machine is operated outside the home area. The PIN code is also requested on the display. (Ö 14.5)
Recommendation: Always activate GPS protection. (Ö 11.16)
6. For your safety
6.1 General
These safety regulations must be observed when working with the machine.
Read the entire instruction manual before using the machine for the first time. Keep the instruction manual in a safe place for future reference.
These safety precautions are essential for your safety, however the list is not exhaustive. Always use the machine in a reasonable and responsible manner and be aware that the user is responsible for accidents involving third parties or their property.
The term “use” covers all work on the robotic mower, the docking station and the perimeter wire.
A “user” is defined as:
A person who reprograms the robotic mower or changes the existing programming.

A person who performs work on the robotic mower.
A person who activates or operates the machine.
A person who installs or removes the perimeter wire or docking station.
The use of the iMOW® app also falls under the term “use” for the purpose of this instruction manual.
The machine must only be operated by persons who are well rested and in good physical and mental condition. If your health is impaired, you should consult your doctor to determine whether working with the machine is possible. The machine should not be operated after the consumption of alcohol, drugs or medications which impair reactions.
Make sure that you are familiar with the controls and use of the machine.
The machine must only be used by persons who have read the instruction manual and are familiar with operation of the machine. The user should seek expert and practical instruction prior to initial operation. The user must receive instruction on safe use of the machine from the vendor or another expert.
During this instruction, the user should be made aware that the utmost care and concentration are required for working with the machine.
Residual risks persist even if you operate this machine according to the instructions.
Risk of death from suffocation! Packaging material is not a toy danger of suffocation! Keep packaging material away from children.

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Only give or lend the machine to persons who are familiar with this model and how to operate it. The instruction manual forms part of the machine and must always be provided to persons operating it.
Make sure that the user is physically, sensorily and mentally capable of operating the machine and working with it. If the user is physically, sensorily or mentally impaired, the machine must only be used under supervision or following instruction by a responsible person.
Make sure that the user is of legal age or being trained under supervision in a profession in accordance with national regulations.
Caution – risk of accident!
Children must be kept away from the machine and mowing area during mowing operation.
Dogs and other pets must be kept away from the machine and mowing area during mowing operation.
For safety reasons, any modification to the machine, except the proper installation of accessories or attachments approved by STIHL, is forbidden and results in voiding of the warranty cover. Information regarding approved accessories and attachments can be obtained from your STIHL specialist dealer.
In particular, any tampering with the machine which increases the power output or speed of the motors is forbidden.

It is not permissible to make any modifications to the machine that could lead to increased noise emissions.
For safety reasons, the machine software must never be modified or tampered with.
Particular care is required during use in public green spaces, parks, sports fields, along roads and in agricultural and forestry businesses.
It is not permitted to transport objects, animals or persons, particularly children, on the machine.
Never allow people, particularly children, to ride or sit on the robotic mower.
Caution risk of accident!
The robotic mower is intended for automatic lawn care. Its use for other purposes is not permitted and may be dangerous or result in damage to the machine.
Due to the physical danger to the user, the machine must not be used for the following applications (incomplete list):
for trimming bushes, hedges and shrubs,
for cutting creepers,
for the care of lawn roofs and balcony boxes,
for shredding or chipping tree or hedge cuttings,
for clearing paths (vacuuming, blowing),
for levelling earth mounds, e.g. mole hills.

6.2 Clothing and equipment

sandals

Wear sturdy footwear with highgrip soles and never work barefoot or when wearing e.g.

when approaching the robotic mower during operation.

station.

Wear suitable work clothes during installation, maintenance operations and all other work on the machine and docking

Never wear loose clothes which may become caught on moving parts do not wear jewellery, ties or scarves.

In particular, wear long trousers

when approaching the robotic mower during operation.

Always wear thick gloves during maintenance and cleaning operations, when laying and removing wires and when securing the docking station. In particular, protect the hands when working on the mowing blade and when driving in the fixing pins or the docking station pegs.

Long hair must always be tied up and secured (headscarf, cap, etc.) when working on the machine.

Suitable safety glasses must be worn when driving in the fixing pins and the docking station pegs.

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6.3 Warning dangers caused by electrical current
Warning: Risk of electric shock!
Particularly important for electrical safety are an intact power cable and mains plug on the power supply unit. Damaged cables, connectors and plugs, or electric cables that do not conform to regulations must not be used, to prevent any risk of electric shocks.
Therefore, check the electric cable regularly for signs of damage or ageing (brittleness).
Only use an original power supply unit.
The power supply unit must not be used:
if it is damaged or worn,
if the cables are damaged or worn. Check the power cable in particular for damage and ageing.
Maintenance and repair work on power cables and power supply units must only be performed by specially qualified technicians.
Danger of electric shock! Do not connect a damaged cable to the mains and only touch a damaged cable once it has been disconnected from the mains.
The electric cable on the power supply unit must not be modified (e.g. shortened). The cable between the power supply unit and docking station must not be extended.
The power supply unit plug must only be connected to the docking station electronics in dry and clean condition.

The power supply unit and cable must not be left on wet ground for prolonged periods.
Danger of electric shock! Damaged cables, connectors and plugs, or electric cables which do not conform with regulations may not be used.
Always ensure that the power cables used are adequately protected by a fuse.
Detach electric cables at the plug and socket and not by pulling on the electric cable.
Only connect the machine to a power supply that is protected by means of a residual current-operated protective device with a release current of a maximum of 30 mA. Your electrician can provide further information.
If the power supply unit is connected to the mains supply outside a building, the socket must be approved for outdoor use. Your electrician can provide further information about country-specific legislation.
It must be noted that current fluctuations can damage the machine when it is connected to a power generator.
6.4 Battery
Only use original batteries.
The battery is intended exclusively for fixed installation in a STIHL robotic mower. There, it is optimally protected and is charged when the robotic mower is in the docking station. No other charger must be used. The use of an unsuitable charger can result in danger due to electric shock, overheating or escaping corrosive battery fluid.
Never open the battery.

Do not drop the battery.
Never use a defective or deformed battery.
Store the battery out of reach of children.
Explosive hazard! Protect the battery against direct sunlight, heat and fire never throw it into a fire.
Only use or store the battery at temperatures from -10°C to max. +50°C.
Protect the battery against rain and moisture do not immerse in liquids.
Do not subject the battery to microwaves or high pressure.
Never connect the battery terminals with metallic objects (short-circuit). The battery can be damaged through short circuits.
Keep the unused battery away from metallic objects (e.g. nails, coins, jewellery). Do not use metallic transport containers explosive and fire hazard!
Fluid may escape from the battery due to improper use avoid contact! In the case of inadvertent contact, rinse with water. Seek medical attention if the fluid comes into contact with the eyes. Escaping battery fluid can cause skin irritation and burns.
Do not insert any objects in the ventilation slots of the battery.
For further safety instructions, see http://www.stihl.com/safety-data-sheets

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6.5 Transporting the machine
Before transporting, and especially before lifting the robotic mower, activate the disabling device. (Ö 5.2)
Allow the machine to cool down before transporting.
Avoid contact with the mowing blade when lifting and carrying the machine. The robotic mower must only be lifted at both carrying handles. Never reach under the machine.
Take the weight of the machine into account and use suitable loading aids (lifters) if required.
Secure the machine and other machine parts being transported (e.g. docking station) on the load floor using fastening materials (straps, ropes, etc.) of an adequate size at the fastening points described in this instruction manual. (Ö 21.)
When transporting the machine, always observe regional legislation, especially regarding load security and the transport of objects on load floors.
Do not leave the battery inside a vehicle and never expose it to direct sunlight.
Lithium-ion batteries must be treated with special care during transport. In particular, short-circuit protection must be ensured. Only transport the battery in the robotic mower.
6.6 Before initial operation
It must be ensured that all persons who use the machine are familiar with the instruction manual.

Carefully follow the instructions for installing the docking station (Ö 9.1) and perimeter wire (Ö 12.).
The perimeter wire and the power cable must be securely fastened to the ground so that they do not present a tripping hazard. Avoid routing the perimeter wire and power cable over edges (e.g. edges of pathways or paving stones). When routing the perimeter wire and power cable on ground into which the supplied fixing pins cannot be driven (e.g. paving stones, pathways), a cable duct must be used.
Correct routing of the perimeter wire and power cable must be regularly checked.
To prevent the risk of stumbling, always drive in the fixing pins all the way.
Do not install the docking station in a place where it is difficult to see and could become a tripping hazard (e.g. around the corner of a house).
If possible, install the docking station out of the reach of pests such as ants or slugs in particular avoid the area around anthills and composting units.
Areas in which the robotic mower cannot operate safely (e.g. due to danger of falling) must be blocked off through appropriate routing of the perimeter wire. STIHL recommends that the robotic mower is only operated on lawns and surfaced paths (e.g. paved drives).
The robotic mower does not detect any sudden drops such as edges, steps, swimming pools or ponds. If the perimeter wire is routed along potential sudden drops, a clearance of at least 1 m must be maintained between the perimeter wire and the danger area for safety reasons.

Regularly inspect the area on which the machine is to be used and remove any sticks, stones, wires, bones and all other foreign objects that could be thrown up by the machine. After installing the perimeter wire, particularly remove all tools from the mowing area. Broken or damaged fixing pins must be removed from the lawn and disposed of.
Regularly check the area to be mown for uneven areas and level them out.
Never use the machine with damaged safety devices or with safety devices removed.
The switch and safety devices installed in the machine must not be removed or bypassed.
All faulty, worn or damaged parts must be replaced before using the machine. Replace any illegible or damaged danger signs and warnings on the machine. Your STIHL specialist has a supply of replacement stickers and all the other spare parts.
Before initial operation, it must be ensured
that the machine is in good operational condition. This means that the covers, guards and the flap must be in place and in good condition.
that the docking station is in a safe operating condition. Here, all covers must be properly installed and be in good condition.
that the power supply unit has been connected to a properly installed socket.
that the insulation of the electric cable and the mains plug on the power supply unit is in good condition.

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that the entire machine (housing, hood, flap, fastening elements, mowing blade, blade shaft, etc.) is neither worn nor damaged.
that the mowing blade and the blade fastening are in proper condition (secure seating, damage, wear). (Ö 16.3)
that all screws, bolts, nuts and other fastening elements are in place and properly tightened. Tighten any loose screws, bolts and nuts prior to initial operation (observe tightening torques).
Carry out any necessary work or consult a specialist dealer. STIHL recommends STIHL specialist dealers.
6.7 Programming
Observe local regulations regarding permitted operating times for gardening power tools with motors and programme the active times accordingly. (Ö 14.3)
In particular, programming must also be adapted so that no children, spectators or animals are in the area to be mown during operation.
Changing the programming using the iMOW® app in the case of model RMI 422 PC can result in activities that will not be expected by other people. Changes to the mowing plan must therefore be communicated in advance to all affected people.
The robotic mower must not operate at the same time as a sprinkler system. Adapt the programming accordingly.

Ensure that the correct date and the correct time are set on the robotic mower. Correct the settings if necessary. Incorrect values may cause the robotic mower to start up unintentionally.
6.8 During operation
Keep others, particularly children and animals, out of the danger area.
Never allow children to approach or play with the robotic mower.
Starting a mowing operation using the iMOW® app in the case of the model RMI 422 PC may not be expected by third parties. Affected people must therefore be notified in advance about possible activity of the robotic mower.
Never allow the robotic mower to operate if you know that animals or people, particularly children, are in the vicinity.
When operating the robotic mower in public places, signs with the following notice must be affixed around the mowing area: “Warning! Automatic lawn mower! Keep away from the machine! Children must be supervised!”
Caution risk of injury! Never put hands or feet on or underneath rotating parts. Never touch the rotating blade.
Before thunderstorms, or if there is a danger of lightning strikes, disconnect the power supply unit from the mains. The robotic mower must not be operated.
The robotic mower must never be tilted or lifted when the motor is running.

Never attempt to change settings on the machine when one of the motors is running. RMI 422: For safety reasons, the machine (RMI 422) must not be used on slopes with an inclination of more than 19,3° (35 %). Risk of injury! A slope inclination of 19,3° corresponds to a vertical height increase of cm at a 100 cm horizontal distance.
RMI 422 P, RMI 422 PC: For safety reasons, the machine (RMI 422 P, RMI 422 PC) must not be used on slopes with an inclination of more than 21,8° (40 %). Risk of injury! A slope inclination of 21,8° corresponds to a vertical height increase of 40 cm for a 100 cm horizontal distance.
Beware of the cutting tool running on for several seconds before coming to a standstill. Press the STOP button (Ö 5.1) during running operation before opening the flap.

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Activate the disabling device (Ö 5.2)
before lifting or carrying the machine,
before transporting the machine,
before removing blockages,
before carrying out any work on the mowing blade,
before checking or cleaning the machine,
after hitting a foreign object or if the robotic mower begins to vibrate excessively. In these cases, check the machine, in particular the cutting unit (blade, blade shaft, blade fastening) for damage and carry out the necessary repairs before restarting and working with the machine.
Risk of injury!
Strong vibration is normally an indication of a fault. In particular, the robotic mower must not be operated with a damaged or bent blade shaft or mowing blade. If you do not have the appropriate expertise, have the necessary repairs carried out by a specialist dealer (STIHL recommends STIHL specialist dealers).
Before leaving the machine unattended, the safety settings of the robotic mower must be adapted so that it cannot be operated by unauthorised persons. (Ö 5.)
Do not lean forward and always ensure that you maintain your balance and a firm footing on inclines when operating the machine and its peripherals. Always walk, do not run.
Never operate the machine in the vicinity of naked flames.

6.9 Maintenance and repairs
Before starting cleaning, repair or maintenance operations, activate the disabling device and park the robotic mower on firm and level ground.
Disconnect the mains plug of the power supply unit before performing any work on the docking station and the perimeter wire.
Allow the robotic mower to cool down for approx. 5 minutes before performing any maintenance operations.
The power cable must only be repaired or replaced by authorised electricians.
Following any work on the machine, check and, if necessary, correct the programming of the robotic mower before putting it back into operation. In particular, the date and time must be set.
Cleaning:
The complete machine must be cleaned carefully at regular intervals. (Ö 16.2)
Never spray water (particularly highpressure cleaners) onto motor components, seals, electric components or bearing points. This may result in damage and expensive repairs. Do not clean the machine under running water (e.g. using a garden hose). Do not use aggressive cleaning agents. These can damage plastics and metals, impairing the safe operation of your STIHL machine.
Maintenance operations:
Only maintenance operations described in this instruction manual may be carried out. Have all other work performed by a specialist dealer.

If you do not have the necessary expertise or auxiliary equipment, please always contact a specialist dealer. STIHL recommends that you have maintenance operations and repairs performed exclusively by a STIHL specialist dealer. STIHL specialist dealers regularly attend training courses and are provided with technical information.
Only use tools, accessories or attachments approved for this machine by STIHL or technically identical parts. Otherwise, there may be a risk of accidents resulting in personal injury or damage to the machine. If you have any questions, please consult a specialist dealer.
The characteristics of original STIHL tools, accessories and spare parts are optimally adapted to the machine and the user’s requirements. Genuine STIHL spare parts can be recognised by the STIHL spare parts number, by the STIHL lettering and, if present, by the STIHL spare parts symbol. On smaller parts, only the symbol may be present.
Always keep warning and information stickers clean and readable. Damaged or missing stickers must be replaced by new, original plates from your STIHL specialist dealer. If a component is replaced with a new component, ensure that the new component is provided with the same stickers.
Only perform work on the cutting unit when wearing thick work gloves and exercising extreme care.

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Ensure that all screws and nuts, especially all screws and fastening elements of the cutting unit, are securely tightened, so that the machine is in a safe operating condition.
Check the entire machine for wear or damage on a regular basis, particularly before extended periods when the machine is not in use (e.g. over winter). For safety reasons, worn or damaged parts must be replaced immediately to ensure that the machine is always in a safe operating condition.
Components or guards that are removed for maintenance operations must be properly reinstalled immediately.
6.10 Storage for prolonged periods without operation
Before putting into storage
Charge the battery (Ö 15.7)
Set the highest safety level (Ö 11.16)
Place the robotic mower in hibernation (Ö 11.17)
Ensure that the machine is protected from unauthorised use (e.g. by children).
Store the machine in good operational condition.
Thoroughly clean the machine before storage (e.g. winter break).
Allow the machine to cool for approx. 5 minutes before storing it in an enclosed space.
The storage room must be dry, frost-free and lockable.
Never store the machine close to naked flames or powerful heat sources (e.g. oven).

6.11 Disposal
Waste products can be harmful to people, animals and the environment. They must consequently be disposed of properly.
Consult your recycling centre or your specialist dealer for information on the proper disposal of waste products. STIHL recommends STIHL specialist dealers.
Ensure that old machines are properly disposed of. Render the machine unusable prior to disposal. In particular, remove the power cable of the power supply unit, as well as the battery of the robotic mower in order to prevent accidents.
Risk of injury due to the mowing blade! Always store an old lawn mower in a safe place prior to scrapping. Ensure that the machine and particularly the mowing blade are kept out of the reach of children.
The battery must be disposed of separately from the machine. Ensure that batteries are disposed of safely and in an environmentally friendly manner.

Warning! Keep a safe distance from the machine during operation. Keep other persons out of the danger area.
Warning! Never touch the rotating blade. Warning! Disable the machine before lifting it and before working on it.
Warning! Do not climb onto or sit on the machine.

7. Description of symbols

Warning! Never touch the rotating blade.

Warning! Read the instruction manual before initial use.

Warning! Keep children away from the machine and mowing area during mowing operation.

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Warning! Keep dogs and other pets away from the machine and mowing area during mowing operation.
8. Standard equipment

Item Designation

Qty.

F Puller for carrier plate

G AKM 100

H Wire connector

Corridor template*

Instruction manual

Power supply unit dependent on robotic mower type and country-specific version.

** Must be separated from the cardboard insert in the packaging.

Item Designation

Qty.

A Robotic mower

B Docking station

C1 Power supply unit OWA-

60E-27*

C2 Power supply unit F27-P45

incl. separate connection

cable*

D iMOW® Ruler**

E Peg for docking station

9. Initial installation
For a quick, easy and robust installation, read and comply with the specifications and instructions, especially the wire clearance of 28 cm during routing. (Ö 12.)
It is possible to increase the mown area by routing the perimeter wire closer to the edge. (Ö 12.17) For reliable operation, the wire clearance must be adapted to the onsite conditions during routing.
iMOW® quick guide
A separate quick guide on installing the docking station and routing the perimeter wire is enclosed with the robotic mower to assist you. More detailed information can be found in the respective chapters of this instruction manual. Always use the quick guide in combination with the instruction manual for the robotic mower.

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iMOW® quick guide Reduced view of page 1:

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iMOW® quick guide Reduced view of pages 2 and 3:

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iMOW® quick guide Reduced view of page 4:

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9.1 Notes on the docking station
Requirements for the docking station location:
Protected, shady. Direct sunlight can lead to increased temperatures in the machine and longer battery charging times. A canopy top available as an accessory can be mounted on the docking station. This provides better protection for the robotic mower against the weather.
Easily visible. The docking station should be easily visible in its chosen location to prevent the risk of tripping over it.
In the immediate vicinity of a suitable socket. The mains connection must be close enough to the docking station that the respective power cables can be connected to both the docking station and the mains connection do not change the power cable of the power supply unit. A socket with overvoltage protection is recommended.
Free from sources of interference. Metal, iron oxides and magnetic or electrically conductive materials as well as old perimeter wire installations can interfere with the mower’s operation. It is recommended to remove these sources of interference.

Level and flat. Uneven ground has a significant influence on the robotic mower’s docking. It must be ensured that the ground underneath the docking station floor plate is level and flat. Level or flatten the ground if necessary.
Preparatory measures:
Mow the lawn using a conventional lawn mower prior to initial installation (ideal grass height max. 6 cm).
In the case of a hard and dry surface, water the mowing area lightly in order to make it easier to drive in the fixing pins.

The docking station must not be inclined by more than 8 cm rearwards or 2 cm forwards.

Mowing areas must not overlap. Maintain a minimum clearance of 1 m between the perimeter wires of two mowing areas.
Never bend the floor plate. Any unevenness must be removed under the floor plate so that it fully contacts the ground. Installation options: The docking station can be installed internally and externally.

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Internal docking station:

In conjunction with an external docking station, guide loops must be installed for offset drive home. (Ö 12.12)
Space requirement for external docking station:

The docking station (1) is installed within the mowing area (A), right at the edge.
There must be a free, level area (2) with a radius of at least 1 m in front of the docking station (1). Remove any bumps or depressions.

The docking station (1) can be installed as illustrated with a corridor (2) for docking and undocking to take place correctly. The areas around the docking station and outside of the perimeter wire must be flat and freely travellable. Remove any bumps or depressions.
The corridor (2) is installed using the corridor template (3). (Ö 12.11)
Minimum clearance from the floor plate to the start of the corridor: 50 cm Width of the free area to the side: 40 cm Maximum clearance to the mowing area: 12 m

The docking station (1) is installed outside the mowing area (A).

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Installing the docking station on a wall:

9.2 Docking station connections Removing the cover:

Opening the panel:

If the docking station is installed on a wall, a recess (1) must be made on the left or right of the floor plate using a pliers to make space for the power cable (2).

Fold the panel (1) forwards. Hold the panel in the opened position as the hinge springs will close it automatically.

Pull the cover (1) apart slightly on the left and right as illustrated and remove upwards.
The connections for the perimeter wire (1) and the power cable (2) are protected against the weather when the panel is closed.

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Closing the panel:
Fold the panel (1) rearwards do not pinch any cables. Fitting the cover:

Fit the cover (1) onto the docking station and allow it to engage do not pinch any cables.
9.3 Connecting the power cable to the docking station
Note: The plug and connection socket must be clean. Remove the docking station cover and open the panel. (Ö 9.2)
Guide the power cable through the cable guide (1) on the panel. Close the panel. (Ö 9.2)

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Connect the connector of the power supply unit (1) to the connector of the docking station (2).
Press the power cable into the cable guide (1) as illustrated and guide through the strain relief (2) and the cable duct (3) to the power supply unit. Close the docking station cover. (Ö 9.2)
25

9.4 Installation material
If the perimeter wire is not routed by the specialist dealer, additional installation material not included in the standard equipment will be required to be able to operate the robotic mower. (Ö 18.)

Highest cutting height: Level 8 (60 mm)
Open the flap. (Ö 15.2)

The installation kits contain perimeter wire on a reel (1) as well as fixing pins (2) and wire connectors (3). The standard equipment in the installation kits may include additional parts not required for the installation.
9.5 Adjusting the cutting height
Set the cutting height to at least level 4 in the first weeks (until the grass has grown over the perimeter wire) to guarantee reliable operation.
Levels S1, S2 and S3 are special heights for very level lawns (ground unevenness < +/- 1 cm).
Lowest cutting height: Level S1 (20 mm)

Turn the rotary knob (1). The marking (2) indicates the set cutting height.
The rotary knob can be removed upwards from the adjustment element. This design serves a safety function (it ensures that the machine cannot be lifted and carried by the rotary knob) and to prevent the cutting height from being modified by unauthorised persons.
9.6 Notes on initial installation
An installation assistant is available for installation of the robotic mower. This program guides you through the entire initial installation process:
Setting the language, date and time
Installing the docking station
Routing the perimeter wire
Connecting the perimeter wire

Linking the robotic mower and docking station
Checking installation
Programming the robotic mower
Completing initial installation
The installation assistant must be worked through in its entirety. Only then is the robotic mower ready for operation.
The installation assistant is reactivated following a reset (reset to factory defaults). (Ö 11.17)
Preparatory measures:
Mow the lawn using a conventional lawn mower prior to initial installation (ideal grass height max. 6 cm).
In the case of a hard and dry surface, water the mowing area lightly in order to make it easier to drive in the fixing pins.
The robotic mower must be activated by a STIHL specialist dealer and assigned to the owner’s e-mail address. (Ö 10.)
When navigating through the menus, follow the instructions in the “Operating instructions” section. (Ö 11.1)
You can select options, menu items and buttons using the control pad.
You can open submenus and confirm selections using the OK button.
Use the Back button to leave the active menu or jump one step back in the installation assistant.
If errors or faults occur during the initial installation, a corresponding message appears on the display. (Ö 24.)
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9.7 Setting the language, date and time
Pressing any button on the display activates the machine and thus the installation assistant.

Select the required display language and confirm with the OK button.

Set the current date using the control pad and confirm with the OK button.

Connect the power cable to the docking station. (Ö 9.3)
Route the power cable under the floor plate when the docking station is installed at a wall. (Ö 9.1)

Set the current time using the control pad and confirm with the OK button.

Confirm your language selection with the OK button or select “Change” and repeat the language selection. If necessary, enter the 9-digit serial
number of the robotic mower. This number is printed on the identification plate (see Machine overview). (Ö 3.1)
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9.8 Installing the docking station
Read the “Notes on the docking station” section (Ö 9.1) and study the installation examples (Ö 27.) in this instruction manual.

Note: Drive the pegs into the ground in such a way that the docking station floor plate does not bend.
Fix the docking station (B) into position at the chosen location using four pegs (E).
Install the power supply unit outside the mowing area, protected from direct sunlight, humidity and moisture fasten to a wall if necessary.

Correct operation of the power supply unit is only ensured at an ambient temperature between 0° C and 40° C. Route all power cables outside the mowing area, in particular out of reach of the mowing blade, and fasten them to the ground or accommodate in a cable duct. Unreel power cables in the vicinity of the docking station in order to avoid interference with the wire signal.
Power supply unit F27-P45: Connect connection cable (1).
Connect the mains plug to the mains. The red LED on the docking station flashes rapidly as long as no perimeter wire is connected. (Ö 13.1)
After completing this installation work, press the OK button.

With external docking station: Define at least one starting point outside the corridor to the docking station after initial installation is complete. Define the starting frequency so that 0 of 10 mowing operations (0/10) are started at the docking station (starting point 0). (Ö 11.14)
Lift the robotic mower slightly by the carrying handle (1) to relieve the weight on the drive wheels. Push the machine, resting on its front wheels, into the docking station. Then press the OK button on the display.

If the battery is discharged, a plug symbol appears instead of the battery symbol at the top right corner of the display after docking and the battery is charged while the perimeter wire is being routed. (Ö 15.7)
9.9 Routing the perimeter wire Please read and observe the entire “Perimeter wire” section before performing wire routing. (Ö 12.) In particular, plan the routing, observe the wire clearances and install no-go areas, reserve wire, linking sections, secondary areas and corridors during wire routing.
For smaller mowing areas with a wire length of less than 80 m, the AKM 100 supplied must be installed together with the perimeter wire. If the wire lengths are too short, the docking station flashes SOS and no wire signal is output.
Install the AKM 100 with a minimum clearance to the docking station of 3 m.

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Fasten the AKM 100 (1) 30 cm outside the mowing area using a fixing pin. Twist the wire ends as far as the mowing area and fasten using a fixing pin.
Cut the perimeter wire (2) and connect the ends to the ends of the AKM 100’s perimeter wire using wire connectors (3) (Ö 12.16). Fasten the left and right connecting pieces as illustrated using fixing pins.
Only use genuine fixing pins and genuine perimeter wire. Installation kits with the necessary installation material are available as an accessory from STIHL specialist dealers. (Ö 18.)
Draw the wire routing in the garden sketch. Content of the sketch:
Contour of the mowing area including important obstacles, borders and any no-go areas which the robotic mower must not mow. (Ö 27.)
Position of the docking station (Ö 9.1)

Position of the perimeter wire After a short while, the perimeter wire becomes overgrown and is no longer visible. Make a note of the routing of the wire around obstacles in particular.
Position of the wire connectors After a short while, the wire connectors used are no longer visible. Their position should be noted in order to replace them as required. (Ö 12.16)
The perimeter wire must be routed in a continuous loop around the entire mowing area. Maximum length: 500 m
The robotic mower must not be more than 17 m from the perimeter wire at any point, as this would prevent the wire signal being picked up.
Route the perimeter wire starting at the docking station. A distinction must be made between an internal docking station and an external docking station here.

Starting routing with an internal docking station:
Fasten the perimeter wire (1) to the ground on the left or right as appropriate, next to the floor plate, directly next to a wire outlet, using a fixing pin (2).
Provide a free wire end (1) with a length of approx. 1.5 m.

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Starting routing with an external docking station:

Route the perimeter wire (2) in front of and behind the docking station (1) for 0.6 m in a straight line and at right angles to the floor plate. Then follow the edge of the mowing area with the perimeter wire.
If offset drive home (passage) is used, the perimeter wire must be routed at least 1.5 m in front of and behind the docking station in a straight line and at right angles to the floor plate. (Ö 11.13)

Fasten the perimeter wire (1) to the ground on the left or right as appropriate, behind the floor plate, directly next to a wire outlet, using a fixing pin (2).

Route the perimeter wire (2) in front of and behind the docking station (1) with 50 cm of clearance and at right angles to the floor plate. A corridor can then be installed (Ö 12.11) or the edge of the mowing area followed with the perimeter wire.
A freely travellable area with a minimum width of 40 cm must be available to the side of the floor plate (3).
Further information on installation of the external docking station is contained in the “Installation examples” section. (Ö 27.)

Provide a free wire end (1) with a length of approx. 2 m.

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Wire routing in the mowing area:

Avoid routing at acute angles (less than 90°). In acutely angled lawn corners, fasten the perimeter wire (1) to the ground with fixing pins (2) as illustrated.(Ö 12.6)
After a 90° corner, at least the length of an iMOW® Ruler must be routed in a straight line before the next corner is installed.

Last fixing pin with internal docking station:

Route the perimeter wire (1) around the mowing area and around any obstacles (Ö 12.9) and fasten it to the ground using fixing pins (2). Check the clearances using the iMOW® Ruler. (Ö 12.5)
The robotic mower must not be more than 17 m from the perimeter wire at any point, as this would prevent the wire signal being picked up.

When routing around high obstacles such as wall corners or high flowerbeds (1), the wire clearance must be maintained at the corners to prevent the robotic mower from scraping against the obstacle. Route the perimeter wire (2) with the aid of the iMOW® Ruler (3) as illustrated.
If necessary, extend the perimeter wire using the wire connectors supplied. (Ö 12.16)
In the case of several adjacent mowing areas, install secondary areas (Ö 12.10) or join the mowing areas with corridors. (Ö 12.11)

Drive in the last fixing pin (1) on the left or right next to the floor plate, directly next to the wire outlet. Cut off the perimeter wire (2) to a free length of approx. 1.5 m.
Last fixing pin with external docking station:

Drive in the last fixing pin (1) on the left or right behind the floor plate, directly next to the wire outlet. Cut off the perimeter wire (2) to a free length of approx. 2 m.

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Completing wire routing:
Check the fastening of the perimeter wire to the ground. One fixing pin per metre is sufficient as a rough guide. The perimeter wire must always lie on the lawn. Drive the fixing pins fully into the ground.
After completing this installation work, press the OK button.
If the battery is not sufficiently charged to work through the remaining steps of the installation assistant, an appropriate message is displayed. In this case, leave the robotic mower in the docking station and continue charging the battery. Jumping to the next step of the installation assistant with the OK button is only possible once the necessary battery voltage is available.

Place the robotic mower (1) within the mowing area, behind the docking station (2) as illustrated, then press the OK button.

9.10 Connecting the perimeter wire

Remove the cover. (Ö 9.2) Press the OK button.

Disconnect the power supply unit plug from the mains, then press the OK button.

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Perimeter wire with internal docking station:

Perimeter wire with external docking station:

Insert the perimeter wire (1) into the cable guides in the floor plate and guide it through the socket (2).

Route the perimeter wire (1) in the area (2) under the floor plate. To do this, guide the wire into the wire outlets (3, 4) loosen the pegs if necessary.

Insert the perimeter wire (1) into the cable guides in the floor plate and guide it through the socket (2).
Connecting the perimeter wire:
Note: Make sure that the contacts are clean (not corroded, dirty, etc).

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Shorten the left wire end (1) and right wire end (2) to the same length. Length from the wire outlet to the wire end: 40 cm

Strip the left wire end (1) to the specified length X using a suitable tool and twist the wire strands.
X = 10-12 mm

Thread a grommet (1) onto each of the two wire ends (2).

Strip the right wire end (1) to the specified length X using a suitable tool and twist the wire strands.
X = 10-12 mm

Twist the free wire ends (1) together as illustrated.
Open the panel and hold. (Ö 9.2)

1 Fold open the left clamping lever (1). 2 Insert the stripped wire end (2) into the terminal block as far as it will go. 3 Close the clamping lever (1).
1 Fold open the right clamping lever (1). 2 Insert the stripped wire end (2) into the terminal block as far as it will go. 3 Close the clamping lever (1).

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Fit the grommets over the terminal blocks.
Check the seating of the wire ends in the terminal block: the two wire ends must be firmly fastened.
Close the panel. (Ö 9.2)

Install the cover. (Ö 9.2) Press the OK button.

When the perimeter wire is correctly installed and the docking station is connected to the mains power supply, the LED (1) illuminates.
Note the “Docking station controls” section, particularly if the LED does not illuminate as described. (Ö 9.2)

Connect the power supply unit plug to the mains, then press the OK button.

Close the cover of the cable duct (1).
After completing this installation work, press the OK button.

Lift the robotic mower slightly by the carrying handle (1) to relieve the weight on the drive wheels. Push the machine, resting on its front wheels, into the docking station.
Then press the OK button on the display.

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9.11 Linking the robotic mower and docking station
The robotic mower can only be operated if it correctly receives the wire signal emitted by the docking station. (Ö 11.16)
Checking the wire signal may take several minutes. The red STOP button on top of the machine terminates the link, the previous installation assistant step is called up. Normal reception
Wire signal OK: The text “Wire signal OK” appears on the display. The robotic mower and docking station are correctly linked.

Continue initial installation by pressing the OK button.
RMI 422 PC: “Standard” energy mode is activated following successful linking. (Ö 11.9)
Interrupted reception
The robotic mower receives no wire signal: The text “No wire signal” appears on the display.
The robotic mower receives a faulty wire signal: The text “Check wire signal” appears on the display.
The robotic mower receives a reversed-polarity wire signal: The text “Connections swapped or iMOW® outside” appears on the display.
Possible cause:
Temporary malfunction
Robotic mower is not docked
Perimeter wire has been connected incorrectly (reversed polarity)
Docking station is switched off or not connected to mains supply
Faulty plug connections
Minimum perimeter wire length not reached
A coiled power cable in the vicinity of the docking station
Perimeter wire ends excessively long or not sufficiently twisted together
Perimeter wire break

Extraneous signals such as a mobile phone or the signal from another docking station
Live underground cables, reinforced concrete or disruptive metals in the ground under the docking station
Maximum length of the perimeter wire exceeded (Ö 12.1)
Remedy:
Repeat linking without other corrective action
Dock the robotic mower (Ö 15.6)
Connect the perimeter wire ends correctly (Ö 9.10)
Check the docking station mains connection, roll out the power cable in the vicinity of the docking station, do not set down coiled
Check the seating of the wire ends in the terminal block, shorten excessively long wire ends and twist the wire ends together (Ö 9.10)
For smaller mowing areas with a wire length of less than 80 m, the AKM 100 supplied must be installed together with the perimeter wire (Ö 9.9)
Check the LED indicator on the docking station (Ö 13.1)
Repair the wire break
Switch off mobile phones or nearby docking stations
Change the position of the docking station or remove interference sources under the docking station
Use a perimeter wire with larger cross section (special accessory)

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Following the appropriate corrective action, repeat linking by pressing the OK button.
Contact your specialist dealer if the measures described above do not result in a correct wire signal.
9.12 Checking installation
Start edge following by pressing the OK button this does not activate the mowing blade.
The robotic mower alternately follows the edge of the mowing area in both directions during running operation after initial installation. Edge following should therefore also be checked in both directions during initial installation.

Close the flap of the robotic mower. (Ö 15.2) Only once the flap has been closed does the robotic mower start automatically and follow the edge along the perimeter wire.
RMI 422 PC: Edge following is used to define the home area of the robotic mower. (Ö 14.5) If the robotic mower is not receiving a GPS signal before starting edge following, the text “Waiting for GPS” appears on the display. The robotic mower starts edge following after a few minutes despite no GPS signal being received. The “Test edge” function (Ö 11.13) must be executed later in order to use GPS protection, as otherwise no home area is defined.
As the robotic mower follows the edge, walk behind it and ensure that the robotic mower follows the edge
of the mowing area as planned, that the clearances to obstacles and the
borders of the mowing area are correct, that docking in and out takes place
correctly.

The distance covered is shown on the display this metric specification is required for setting starting points at the edge of the mowing area. (Ö 11.14)
Read off the displayed value at the required location and write it down. Manually set starting points after initial installation.
The following of edges is automatically interrupted by obstacles, during operation on excessively steep slopes or by pressing the STOP button.
If edge following has been interrupted automatically, correct the position of the perimeter wire and remove any obstacles.
Check the position of the robotic mower before continuing edge following. The machine must either be located on the perimeter wire or within the mowing area with the front facing the perimeter wire.
Continuation following interruption:
After an interruption, continue edge following with OK.
It is recommended by STIHL not to interrupt edge following. Possible problems when following the edge of the mowing area or when docking may not be recognised.
Edge following can be repeated following initial installation if necessary. (Ö 11.13)
The robotic mower docks after one complete circuit around the mowing area. The system then queries as to whether a second edge following run in the opposite direction should be started.

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Automatic completion of edge following: The next step of the installation assistant is called up when the robotic mower docks following the second complete circuit or if edge following in the opposite direction is refused.
9.13 Programming the robotic mower
Enter the size of the lawn and confirm with OK.
Installed no-go areas and secondary areas must not be included when calculating the size of the mowing area.

A new mowing plan is being calculated. The procedure can be cancelled using the red STOP button on the top of the machine.
Confirm the message “Confirm each day individually or change active time” by pressing the OK button.

In the case of small mowing areas, not all the week days are used for mowing. In this case, no active times are displayed and the menu item “Delete all active times” is omitted. Days without active times must also be confirmed with OK.
The displayed active times can be changed. For this purpose, select the required time interval using the control pad and open with OK. (Ö 11.7)
If additional active times are required, select the menu item New active time and open with OK. Specify the start and end times of the new active time in the selection window and confirm with OK. Up to three active times per day are possible.
If all the displayed active times are to be deleted, select the menu item Delete all active times and confirm with OK.

The active times for Monday are displayed and the menu item Confirm active times is enabled.
All the active times are confirmed with OK and the next day is displayed.

The mowing plan is displayed after the active times for Sunday have been confirmed.

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To be able to use all the functions of the robotic mower, the iMOW® app must be installed on a smartphone or tablet with an Internet connection and GPS receiver, and started. (Ö 10.)
Close the dialog window by pressing the OK button.

The displayed mowing plan is confirmed with OK and the final step of the installation assistant is called up.
If changes are necessary, select Change and individually adapt active times.
During the active times, third parties must keep out of the danger area. The active times should be adapted accordingly. Moreover, the applicable local regulations on the use of robotic mowers as well as the information in the “For your safety” section (Ö 6.) must be observed and the active times changed accordingly in the “Mowing plan” menu as required, either immediately or after completion of initial installation. (Ö 11.7) In particular, you should check the times of the day and night at which it is permissible to use the machine with the responsible authorities.
9.14 Completing initial installation
Remove all foreign bodies (e.g. toys, tools) from the mowing area.

Complete initial installation by pressing the OK button.
After initial installation, the safety level “None” is activated.
Recommendation: Set the safety level to “Low”, “Medium” or “High”. This ensures that unauthorised people cannot change any settings or operate the robotic mower using other docking stations. (Ö 11.16)
RMI 422 PC: In addition, activate GPS protection. (Ö 5.9)
RMI 422 PC:

9.15 First mowing operation after initial installation If completion of initial installation occurs during an active time, the robotic mower will begin to mow the mowing area immediately.
If completion of the initial installation occurs outside the active time, a mowing operation can be started by pressing the OK button. If you do not wish the robotic mower to mow, select “No”.
10. iMOW® app
The model RMI 422 PC can be operated using the iMOW® app. The app is available for the most popular operating systems in the respective app stores.

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Further information is available on the web.imow.stihl.com/systems/ homepage.
The regulations in the “For your safety” section apply in particular to all users of the iMOW® app. (Ö 6.)
Activation: In order for the app and robotic mower to be able to exchange data, the machine must be activated with the owner’s e-mail address by the specialist dealer. An activation link is sent to the e-mail address. The iMOW® app should be installed on a smartphone or tablet with an Internet connection and GPS receiver. The e-mail recipient is defined as the administrator and primary user; this person has full access to all functions.
Keep the e-mail address and password safe so that the iMOW® app can be reinstalled should the smartphone or tablet be changed (e.g. if the mobile phone is lost).
Data traffic: Data transmission from the robotic mower to the Internet (M2M service) is included in the purchase price. Data transmission does not take place continuously and can therefore take a few minutes. The transmission of data from the app to the Internet will result in costs that must be borne by the user; these costs will be determined by the contract with the mobile phone provider or Internet provider.
GPS protection is only available without e-mail, SMS and push notifications without a mobile radio connection and app.
Main functions of the app:

Viewing and editing the mowing plan Starting mowing Switching automatic mowing on and off Sending the robotic mower to the
docking station Changing the date and time
Changing the mowing plan, starting a mowing operation, switching automatic mowing on and off, sending the robotic mower home and changing the date and time can result in activities that will not be expected by other people. Affected people must therefore always be notified in advance about possible activities of the robotic mower. Calling up machine information and the location of the robotic mower
11. Menu
11.1 Operating instructions

The control pad comprises four direction buttons (1). It serves for navigation in the menus. Settings are confirmed and menus opened using the OK button (2). Menus can be exited again using the Back button (3).
The main menu comprises 4 submenus, displayed as buttons. The selected submenu has a black background and is opened using the OK button.
The second menu level is displayed as a list. You move up and down through the submenus by pressing the control pad. Active menu entries have a black background. The scroll bar at the right edge of the display indicates that further entries can be displayed by pressing the control pad downwards or upwards.

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Submenus are opened by pressing the OK button.

Selection window:

11.2 Status screen

The “Settings” and “Information” submenus are shown as tabs. The tabs can be selected by pressing the control pad to the left or right, submenus by pressing the control pad downwards or upwards. Active tabs and menu entries have a black background.

Settings can be changed by pressing the control pad. The current value is highlighted in black. The OK button confirms all the values.
Dialog window:

The status screen appears
when standby mode of the robotic mower is ended by pressing a button,
when the Back button is pressed in the main menu,
during running operation.

Options are listed in the submenus. Active list entries have a black background. Pressing the OK button opens a selection or a dialog window.

If changes have to be saved or messages confirmed, a dialog window appears on the display. The active button has a black background.
In the case of selection options, the relevant button can be activated by pressing the control pad to the left or right.
The selected option is confirmed and the higher-level menu called up using the OK button.

There are two configurable fields in the top display area. Various information regarding the robotic mower and the mowing operations can be displayed here. (Ö 11.10)
Status information with no running activity RMI 422, RMI 422 P:

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The text “iMOW® ready for op.” is displayed in the bottom area of the screen together with the symbol shown and the automatic mowing status. (Ö 11.7) Status information with no running activity RMI 422 PC:
The name of the robotic mower (Ö 10.) and the text “iMOW® ready for op.” are displayed in the bottom area of the screen together with the symbol shown, the automatic mowing status (Ö 11.7) and information on GPS protection (Ö 5.9).
Status information during running activities all models:
The text “iMOW® mowing lawn” and a corresponding symbol are shown on the display during a running mowing operation. The text and symbol are adapted to the respective active operation.

The text “Attention iMOW® starting” and a warning symbol are displayed before the mowing operation.
Flashing of the display illumination and a signal tone additionally indicate the impending start of the mowing motor. The mowing blade is only activated a few seconds after the robotic mower has been set into motion.
Edge mowing: While the robotic mower mows the edges of the mowing area, the text “Mowing edge” is displayed.
Drive to docking station: When the robotic mower returns to the docking station, the relevant reason is indicated on the display (e.g. Battery discharged, Mowing completed).
Battery charging: The text “Charging battery” appears during charging of the battery.
Approach starting points: When the robotic mower approaches a starting point when a mowing operation starts, the text “Approaching starting point” is displayed.
RMI 422 PC: Travel to desired zone: When the robotic mower

approaches a desired zone when a mowing operation starts, the text “Approaching desired zone” is displayed.
Message screen all models:
Errors, faults or recommendations are displayed together with warning symbol, date, time and message code. If several messages are active, they appear alternately. (Ö 24.)
The message and status information appear alternately if the robotic mower is ready for operation.
11.3 Information area

The following information is shown in the top right corner of the display:
1. Charge state of the battery or charging in progress

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2. Automatic mowing status 3. Time 4. Mobile radio signal (RMI 422 PC)

11.4 Main menu

1. Charge state: The battery symbol serves to indicate the charge state.
No bars battery discharged 1 to 5 bars battery partially discharged 6 bars battery fully charged
During charging, the mains plug symbol is shown instead of the battery symbol.
2. Automatic mowing status: When automatic mowing is switched on, the Automatic symbol appears.
3. Time: The current time is indicated in 24-hour format.
4. Mobile radio signal: The signal strength of the mobile radio connection is indicated using 4 bars. The more bars visible, the better the reception.
A reception symbol with a small x indicates that there is no connection with the Internet.
A question mark is shown during initialisation of the radio module (checking hardware and software, e.g. after switching on the robotic mower).

The main menu is displayed,
when the status screen (Ö 11.2) is left by pressing the OK button,
when the Back button is pressed in the second menu level.
1. Start (Ö 11.5) Mowing time Starting pt. Mowing on
2. Drive home (Ö 11.6)
3. Mowing plan (Ö 11.7) Automatic mowing Mowing duration Active times New mowing plan
4. More (Ö 11.8) Lock iMOW® Edge mowing Settings Information

11.5 Start
1. Mowing time: The mowing time can be defined. 2. Starting pt.: The starting point where the robotic mower starts mowing can be selected. This selection is only available if starting points are defined and if the robotic mower is in the docking station. 3. Mowing on: The area to be mown can be selected. This selection is only available if there is a secondary area installed.
11.6 Drive home The robotic mower travels back to the docking station and charges the battery. If automatic mowing is switched on, the robotic mower will mow the mowing area again at the next possible active time.
RMI 422 PC: The robotic mower can also be sent back to the docking station using the app. (Ö 10.)

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11.7 Mowing plan
Automatic mowing On – Automatic mowing is switched on. The robotic mower mows the lawn until the next active time. Off – All active times are disabled. Pause today – The robotic mower suspends automatic mowing until the next day. This selection is only available if there are more active times scheduled on the current day. Mowing duration The weekly mowing duration can be set. This setting is only possible with the mow plan type “Dynamic”. The preset value is adapted to the size of the mowing area. (Ö 14.4) Follow the instructions in the “Adapting the programming” section. (Ö 15.3)
RMI 422 PC: The mowing duration can also be set using the app. (Ö 10.) Active times

The saved mowing plan can be called up via the “Active times” menu in the “Mowing plan” menu. The rectangular blocks beneath the respective days represent the saved active times. Mowing is possible in active times marked in black. Grey blocks represent active times without mowing operations e.g. in the case of a disabled active time.
When automatic mowing is switched off, the entire mowing plan is disabled and all active times are shown in grey.
If the active times for an individual day need to be edited, the day must be activated via the control pad (press to the left or right) and the Active times submenu must be opened.

Mowing is permitted during ticked active times; these times are marked in black in the mowing plan.
Mowing is not permitted during unticked active times; these times are marked in grey in the mowing plan.
Follow the instructions in the “Notes on mowing Active times” section. (Ö 14.3) In particular, third parties must keep out of the danger area during the active times.
RMI 422 PC: Active times can also be edited using the app. (Ö 10.)
The saved active times can be individually selected and edited.
The New active time menu item can be selected provided fewer than 3 active times per day have been saved. An additional active time must not overlap with other active times.
If the robotic mower is not to mow on the selected day, the menu item Delete all active times should be selected.
Changing active times:

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The selected active time for automatic mowing can be disabled or enabled using Active time off and Active time on respectively.
The time window can be changed with Change active time.
If the selected active time is no longer required, the menu item Delete active time should be selected.
If the time windows for the necessary mowing and charging operations are not sufficient, active times must be extended or added, or the mowing duration must be reduced. A corresponding display message appears.
New mowing plan
The command New mowing plan deletes all stored active times. The step “Program the robotic mower” of the installation assistant is called up. (Ö 9.13)
If completion of the reprogramming occurs during an active time, the robotic mower begins an automatic mowing operation after the individual daily plans have been confirmed.

11.8 More
1. Lock iMOW®: Activates the disabling device. Press the illustrated button combination to unlock. (Ö 5.2) 2. Edge mowing: Following activation, the robotic mower mows the edge of the mowing area. After completing one circuit, it travels back to the docking station and charges the battery. 3. Settings (Ö 11.9) 4. Information (Ö 11.18)
11.9 Settings

1. iMOW®: Adapt machine settings (Ö 11.10)
2. Installation: Adapt and test the installation (Ö 11.13)
3. Safety: Adapt the safety settings (Ö 11.16)
4. Service: Maintenance and service (Ö 11.17)
5. Dealer area: The menu is protected by the dealer code. Your specialist dealer performs a variety of maintenance and service operations with the aid of this menu.
11.10 iMOW® machine settings
1. Mow plan type:
Standard: The robotic mower mows the lawn throughout the entire active time. Mowing operations are only interrupted for charging. The mow plan type Standard is preset.
Dynamic: The number and duration of mowing and charging times are adapted fully automatically within the active times.
2. Rain sensor: The rain sensor can be set so that mowing is interrupted or does not start when it is raining.
Setting the rain sensor (Ö 11.11)
3. Status screen: Select the information that is to appear in the status screen. (Ö 11.2)
Setting the status screen (Ö 11.12)

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4 Time: Set the current time. The set time must correspond to the actual time in order to prevent inadvertent mowing by the robotic mower.
RMI 422 PC: The time can also be set using the app. (Ö 10.)
5 Date: Set the current date. The set date must correspond to the actual calendar date in order to prevent inadvertent operation of the robotic mower.
RMI 422 PC: The date can also be set using the app. (Ö 10.)
6. Date format: Set the required date format.
7. Language: Set the required display language. The language selected during initial installation is set as the default.
8. Contrast: The display contrast can be adjusted as required.
9. Energy mode (RMI 422 PC): In Standard, the robotic mower is connected to the Internet at all times and can be reached using the app. (Ö 10.) In ECO, radio communication is deactivated during rest periods to reduce energy consumption; the robotic mower cannot be reached using the app. The most recent available data is shown in the app.

11.11 Setting the rain sensor
In order to set the 5-stage sensor, press the control pad to the left or right. The current value is displayed in the “Settings” menu by means of a line diagram.
Moving the control influences
the sensitivity of the rain sensor,
the time the robotic mower waits for the sensor surface to dry following rain.
In the case of medium sensitivity, the robotic mower is ready for operation under normal ambient conditions.
Move the bar further to the left for mowing at a higher humidity. If the bar is moved all the way to the left, the robotic mower will mow even in wet external conditions and will not interrupt the mowing operation if rain drops land on the sensor.
Move the bar further to the right for mowing at a lower humidity. If the bar is moved all the way to the right, the robotic mower will only mow if the rain sensor is completely dry.
11.12 Setting the status screen
In order to set the status screen, select the left or right screen with the control pad and confirm with OK.
Charge state: Shows the battery symbol with the charge state in percent

Rem. time: The remaining mowing duration during the current week in hours and minutes. This display is only available with the mow plan type “Dynamic”.
Time and date: Current time and current date
Start time: Start of the next planned mowing operation. During a running active time, the text “active” is displayed.
Mowing ops: Total number of mowing operations performed
Mowing hours: Duration of all mowing operations performed
Distance: Total distance covered
Network (RMI 422 PC): Signal strength of the mobile radio connection with network ID. A small x or question mark indicates that the robotic mower is not connected to the Internet. (Ö 11.3), (Ö 11.18)
GPS reception (RMI 422 PC): GPS coordinates of the robotic mower. (Ö 11.18)
11.13 Installation
1. Passage: Switch offset drive home on and off. When the passage is activated, the robotic mower travels back home to the docking station, offset at a distance, along the perimeter wire.

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RMI 422 PC: If no mapping for the direct drive home (Ö 11.15) is stored, the robotic mower’s drive home will be executed at the edge and the settings for the passage will be taken into consideration.
Three versions can be selected: Off Default setting The robotic mower travels along the perimeter wire. Narrow 40 cm The robotic mower alternately travels along the perimeter wire or offset by 40 cm. Wide 40 – 80 cm The distance to the perimeter wire is selected randomly within this passage during each drive home.
In conjunction with an external docking station as well as with corridors and confined areas, guide loops must be installed for offset drive home. (Ö 12.12)
Observe a minimum wire clearance of 2 m for offset drive home.
2. Starting points: The robotic mower either starts the mowing at the docking station (default setting) or at a starting point.
Starting points are to be defined
if partial areas are to be travelled to in a targeted manner because they are insufficiently mowed,
if areas can only be accessed via a corridor. At least one starting point must be defined in these partial areas.
RMI 422 PC: The starting points can be assigned a radius. If the robotic mower starts mowing at the relevant starting point, it always mows within a circle around the starting

point first. Once it has mown this partial area, it continues mowing in the remaining area.
Setting starting points (Ö 11.14)
3. RMI 422 PC: Direct drive home: Create internal mapping of the mowing area for the direct drive home. (Ö 11.15)
4. Secondary areas: Enable secondary areas. Inactive Default setting Active Setting if secondary areas are to be mown. The mowing area (main area/secondary area) must be selected in the “Start” menu. (Ö 11.5)
5. Edge mowing: Define the mowing frequency. Never The edges are never mown. Once Default setting, the edges are mown once a week. Twice/Three times/Four times/Five times The edges are mown twice/three times/four times/five times per week.
6. Test edge: Start edge following for checking correct wire routing. The step “Check installation” of the installation assistant is called up. (Ö 9.12)
To check correct wire routing around no-go areas, position the robotic mower in the mowing area with the front facing the no-go area and start edge following.
The home area of the robotic mower is defined during edge following. If necessary, a home area already stored in the memory is extended. (Ö 14.5)

7. New installation: The installation assistant is started again, the existing mowing plan is deleted. (Ö 9.7)
11.14 Setting starting points
To set, either
learn starting points
or
select the required starting point and define it manually.
Learn start points: After pressing the OK button, the robotic mower begins a new learning run along the perimeter wire. If it is not docked, it first travels to the docking station. All the existing starting points are deleted.
RMI 422 PC: The home area of the robotic mower is defined during the learning run. If necessary, a home area already stored in the memory is extended. (Ö 14.5)
During travel, up to 4 starting points can be specified by pressing the OK button after opening the flap.
Avoid pressing the STOP button before opening the flap as this interrupts the learning run. Interruption is generally only necessary to change the wire position or remove obstacles.
Interrupting the learning procedure: Manually by pressing the STOP button. Automatically by obstacles at the edge of the mowing area.

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If the learning run has been interrupted automatically, correct the position of the perimeter wire and remove any obstacles.
Check the position of the robotic mower before continuing the learning run. The machine must either be located on the perimeter wire or within the mowing area with the front facing the perimeter wire.
Ending the learning procedure: Manually following an interruption. Automatically after docking. After docking or after the interruption, the new starting points are saved by confirming with OK (after opening the flap). Starting frequency: The starting frequency defines how often a mowing operation is to begin from a starting point. The default setting is 2 of 10 mowing operations (2/10) at each starting point.
Change the starting frequency as required after learning.
If the learning procedure has been aborted prematurely, send the robotic mower back to the docking station via a command. (Ö 11.6)
RMI 422 PC: A radius from 3 m to 30 m around each starting point can be defined after learning. The stored starting points are not assigned any radius as standard.
Starting points with radius: When the mowing operation is started at the respective starting point, the robotic mower starts by mowing the partial area within the circular segment around the starting point. Only then does it mow the rest of the mowing area.

Setting starting point 1 to 4 manually: Determine the distance of the starting points from the docking station and define the starting frequency. The distance corresponds to that covered from the docking station to the starting point in metres, measured in a clockwise direction. The starting frequency can be between 0 of 10 mowing operations (0/10) and 10 of 10 mowing operations (10/10).
RMI 422 PC: A radius from 3 m to 30 m around the starting point can be defined.
The docking station is defined as starting point 0; mowing operations are started from here as standard. The starting frequency corresponds to the calculated residual value of 10 out of 10 operations.
11.15 Direct drive home
RMI 422 PC: Intelligent pathfinding enables the robotic mower to execute a more direct and more efficient drive home to the docking station.
active – Direct drive home is active. The robotic mower travels over the mowing area to the docking station.
inactive – Direct drive home is inactive. The robotic mower travels along the perimeter wire to the docking station.
Teach-in – An internal mapping of the mowing area is created. If there is already a map stored, this is deleted.

An internal map of the mowing area is stored during the teach-in run. The edge following run must be executed without interruption for this. Prerequisites for mapping of the mowing area: The robotic mower must travel the entire length of the perimeter wire without interruption. Obstacles and errors in the wire routing result in interruptions. Obstacles must be removed and the wire routing must be corrected if applicable. Performing mapping of the mowing area: Select the “Teach-in” menu item. The teach-in process requires an uninterrupted edge following run.
Remove obstacles along the perimeter wire. Confirm with OK.
If an internal map is already available, a query is displayed asking whether it should be deleted.
If confirmed with OK, close the flap. The robotic mower follows the edge. The internal map of the mowing area is created in the background.

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If the mowing area is successfully mapped:
The teach-in process is automatically terminated when the robotic mower docks.
The message “Teach-in process successful” appears. Direct drive home is active.
If edge following is interrupted:
Edge following is interrupted by hitting obstacles or can be interrupted manually by pressing the Stop button.
Following an interruption, the teach-in process must be started again from the docking station.
The message “Cancel teach-in – Teachin failed” appears.
A query is displayed asking whether the edge following should be cancelled. If the response is No, the robotic mower automatically travels along the perimeter wire to the docking station. The teach-in run must be started again for successful mapping. If the response is Yes, carry the machine to the docking station.
A query is displayed asking whether the teach-in process should be repeated.
If the response is Yes, place the robotic mower in the docking station, confirm with OK and close the flap. The teach-in process starts again.
The mowing area map must be created again if the perimeter wire routing is adjusted.

If the “Test edge” step of initial installation is carried out without interruption, a map of the mowing area is already created automatically in the background.
11.16 Safety
1. Disab. device
2. Level
3. GPS protect. (RMI 422 PC)
4. Change PIN code
5. Start signal
6. Menu signal
7. Keylock
8. Link iMOW® and dock
1. Disab. device: The disabling device is activated with OK; the robotic mower can no longer be operated. The robotic mower must be disabled prior to any maintenance or cleaning work, prior to transportation and prior to inspection. (Ö 5.2)
To deactivate the disabling device, press the illustrated button combination.
2. Level: Four safety levels can be set; various locks and safety devices are activated, depending on the level.
None: The robotic mower is unprotected.

Low: The PIN request is active; a PIN code must be entered in order to link the robotic mower and docking station, and to reset the machine to the default settings.
Medium: As “Low”, but the time lock is also active.
High: Entry of a PIN code is always required.
STIHL recommends that one of the safety levels “Low”, “Medium” or “High” be set.
Select the required level and confirm with OK; enter the 4-digit PIN code if necessary.
PIN request: If the mower is tilted for longer than 10 seconds, the PIN request appears. If the PIN code is not entered within one minute, an alarm sounds and automatic mowing is switched off. Connection lock: PIN code request prior to linking the robotic mower and docking station. Reset lock: PIN code request prior to resetting the machine to the factory defaults. Time lock: PIN code request for changing a setting if no PIN code has been entered for more than one month. Setting prot.: PIN code request when settings are changed.
3. GPS protect. (RMI 422 PC): For switching position monitoring on and off. (Ö 5.9)

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Recommendation: Always switch on GPS protection. Before switching on, enter the mobile phone number of the owner in the app (Ö 10.) and set the safety level “Low”, “Medium” or “High” on the robotic mower.
4. Change PIN code: The 4-digit PIN code can be changed if required.
The “Change PIN code” menu item is only displayed in the safety levels “Low”, “Medium” or “High”.
First enter the old PIN code and confirm with OK.
Then enter the new 4-digit PIN code and confirm with OK.
STIHL recommends writing down the new PIN code. If the PIN code is entered incorrectly five times, a 4-digit master code is required, and automatic mowing is also switched off.
To create the master code, contact your STIHL specialist dealer or contact iMOW® Support directly at support@imow.stihl.com. Please provide the 9-digit serial number and the 4-digit date, which are shown on the iMOW® display.
5. Start signal: For switching on and off the acoustic signal that sounds when the mowing blade is activated.
6. Menu signal: For switching on and off the acoustic click that sounds when a menu is opened and a selection is confirmed with OK.

7. Keylock: When the keylock is switched on, the buttons on the display can only be operated if the Back button is pressed and held and the control pad is then pressed forwards. The keylock is activated 2 minutes after the last button has been pressed. 8. Link iMOW® and dock: Following initial operation, the robotic mower can only be operated in conjunction with the docking station installed. Following a replacement of the docking station or of electronic components in the robotic mower or for initial operation of the robotic mower on an additional mowing area using a different docking station, the robotic mower and docking station must be linked. Install the docking station and connect
the perimeter wire. (Ö 9.10), (Ö 9.10)
Lift the robotic mower slightly by the carrying handle (1) to relieve the weight on the drive wheels. Push the machine, resting on its front wheels, into the docking station.

After pressing the OK button, enter the PIN code. The robotic mower will then search for the wire signal and save it automatically. This process takes several minutes. (Ö 9.11)
No PIN code is required in the safety level “None”.
11.17 Service
1. Blade change: Installation of a new mowing blade is confirmed with OK. The counter is reset.
2. Find wire break: If the red LED on the docking station flashes rapidly, there is a break in the perimeter wire. (Ö 13.1)
Finding a wire break (Ö 16.7)
3. Hibernation: OK places the robotic mower in hibernation. The settings are kept, the time and date are reset.
Charge the battery fully before hibernation.
When resuming operation, wake up the machine by pressing any button.
4. Reset settings: The robotic mower is reset to the factory defaults with OK, the installation assistant is restarted. (Ö 9.6)
Enter the PIN code after pressing the OK button.
No PIN code is required in the safety level “None”.

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11.18 Information
1. Messages: List of all active errors, faults and recommendations; shown together with the time of occurrence. During trouble-free operation, the text “No messages” appears. The message details are displayed by pressing the OK button. (Ö 24.) 2. Events: List of the last activities of the robotic mower. Details of the events (additional text, time and code) can be displayed by pressing the OK button.
If certain activities occur too frequently, detailed information is available from your specialist dealer. Errors during normal operation are documented in the messages. 3. iMOW® status: Information on the robotic mower Charge state: Battery charge in percent Rem. time: The remaining mowing duration during the current week in hours and minutes
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Date and time
Start time: Start of the next planned mowing operation
Total number of completed mowing operations
Mowing hours: Duration of all completed mowing operations in hours
Distance: Total distance covered in metres
Ser.-No.: Serial number of the robotic mower. This can also be found on the identification plate (see Machine overview). (Ö 3.1)
Battery: Serial number of the battery
Software: Installed machine software
4. Lawn status: Information on the lawn
Mowing area in square metres: This value is entered during initial installation or new installation. (Ö 9.6)
Round time: Duration of one circuit around the mowing area in minutes and seconds
Starting points 1 4: Distance of the relevant starting point from the docking station in metres, measured in a clockwise direction. (Ö 11.14)
Circumference: Circumference of the mowing area in metres
Edge mowing: Frequency of edge mowing per week (Ö 11.13)

5. Radio module status (RMI 422 PC): Information on the radio module Satellites:
Number of satellites within range Position:
Current position of the robotic mower; available if the satellite connection is strong enough Signal strength: Signal strength of the mobile radio connection; the more plus characters shown (max. “++++”), the better the connection. Network: Network ID, comprising country code (MCC) and provider code (MNC) Mobile phone number: Mobile phone number of the owner; is entered in the app. (Ö 10.) IMEI: Hardware number of the radio module IMSI: International mobile subscriber identity SW: Software version of the radio module Ser.-No.: Serial number of the radio module Modem SN: Serial number of the modem
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12. Perimeter wire
Before routing the perimeter wire, particularly prior to initial installation, read the entire section and plan the wire routing in detail.
Perform initial installation using the installation assistant. (Ö 9.)
Should you require support, your STIHL specialist dealer will be pleased to assist you with preparation of the mowing area and installation of the perimeter wire.
Check the installation of the perimeter wire before it is finally secured in place. (Ö 9.) Adjustments to the wire routing are generally necessary in the vicinity of corridors, confined areas or no-go areas.
Deviations can occur
if the technical limits of the robotic mower are reached, for example with very long corridors or when routing the perimeter wire in the vicinity of metal objects or above metal under the lawn (e.g. water pipes and power supply lines),
if the mowing area is structurally altered for using the robotic mower.

The wire clearances specified in this instruction manual are adapted to the routing of the perimeter wire on the lawn area.
The perimeter wire can also be buried up to a depth of 10 cm (e.g. using a cable-laying machine).
Burial in the ground generally influences signal reception, particularly if flagstones or paving stones are laid over the perimeter wire. The robotic mower may travel along at a greater offset to the perimeter wire, requiring more space in corridors, confined areas and when travelling along edges. Adapt the wire routing if necessary.
12.1 Planning routing of the perimeter wire
Study the installation examples at the end of this instruction manual. (Ö 27.) Include no-go areas, corridors, secondary areas, guide loops and reserve wire during routing of the perimeter wire in order to prevent subsequent corrections.
Determine the location of the docking station. (Ö 9.1)
Either remove obstacles from the mowing area, or include no-go areas. (Ö 12.9)
Perimeter wire: The perimeter wire must be routed in a continuous loop around the entire mowing area. Maximum length: 500 m

For small mowing areas with a wire length of less than 80 m, the AKM 100 supplied must be installed together with the perimeter wire. (Ö 9.9)
Corridors and secondary areas: For automatic mowing, join all parts of the mowing area by means of corridors. (Ö 12.11) If there is insufficient space to do so, secondary areas must be installed. (Ö 12.10)
Observe the clearances when routing the perimeter wire (Ö 12.5): for adjoining areas that can be travelled on (stepped area height of less than +/1 cm, e.g. paths): 0 cm for corridors: 22 cm for high obstacles (e.g. walls, trees): 28 cm minimum wire clearance in confined areas: 44 cm or water features and potential sudden drops (edges, steps): 100 cm
Corners: Avoid routing at acute angles (less than 90°).
Guide loops: If offset drive home (passage) is to be used, guide loops must be installed for corridors or for the external docking station. (Ö 12.12)
Reserve wire: Reserve wire should be installed at several points to make it easier to subsequently change the routing of the perimeter wire. (Ö 12.15)

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Position of the wire connectors After a short while, the wire connectors used are no longer visible. Their position should be noted in order to replace them as required. (Ö 12.16)

Mowing areas must not overlap. Maintain a minimum clearance of 1 m between the perimeter wires of two mowing areas.
Coiled up residual pieces of perimeter wire can cause malfunctions and must be removed.

12.2 Making a sketch of the

mowing area

During installation of the robotic

mower and docking station, it is

recommended to make a sketch of the

mowing area. A page has been provided at

the start of this instruction manual for this

purpose.

The sketch should be modified in the event

of subsequent changes.

Content of the sketch:

Contour of the mowing area including
important obstacles, borders and any
no-go areas which the robotic mower must not mow. (Ö 27.)

Position of the docking station (Ö 9.8)

Position of the perimeter wire After a short while, the perimeter wire is overgrown and is no longer visible. Make a note of the routing of the wire around obstacles in particular. (Ö 9.9)

12.3 Routing the perimeter wire
Only use genuine fixing pins and genuine perimeter wire. Installation kits with the necessary installation material are available as an accessory from the STIHL specialist dealer. (Ö 18.)
The routing direction (clockwise or counterclockwise) is freely selectable according to requirements.
Never pull out fixing pins using the perimeter wire always use a suitable tool (e.g. universal pliers).
Make a sketch of the perimeter wire routing. (Ö 12.2)
Install the docking station. (Ö 9.8)
Route the perimeter wire around the mowing area and any obstacles beginning at the docking station (Ö 12.9) and fasten it to the ground using fixing pins. Check the clearances using the iMOW® Ruler. (Ö 12.5) Follow the instructions in the “Initial installation” section. (Ö 9.9)
Connect the perimeter wire. (Ö 9.10)
Note: Avoid excessive tensile stress on the perimeter wire to prevent wire breaks. In particular when using a wire routing machine, make sure that the perimeter wire unwinds loosely from the spool.

The perimeter wire (1) is routed above ground and attached with additional fixing pins (2) in case of unevenness. This prevents the wire being cut by the mowing blade.
12.4 Connecting the perimeter wire
Disconnect the mains plug and then remove the docking station cover.
Insert the perimeter wire into the cable guides of the floor plate, guide it through the socket, strip the ends and connect to the docking station. Follow the instructions in the “Initial installation” section. (Ö 9.10)
Install the docking station cover and then connect the mains plug.
Check the wire signal. (Ö 9.11) Check docking. (Ö 15.6)
If necessary, correct the position of the perimeter wire in the area of the docking station.

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12.5 Wire clearances use iMOW® Ruler

The perimeter wire (1) can be routed without clearance along obstacles that can be travelled on such as patios and paths. The robotic mower then travels with one rear wheel outside the mowing area. Maximum stepped area to the turf: +/1 cm
Take care not to damage the perimeter wire when tending to the lawn edge. If necessary, install the perimeter wire at a slight distance (2-3 cm) from the lawn edge. Measuring wire clearances with the iMOW® Ruler: To ensure the correct clearance from the perimeter wire to the edge of the lawn and to obstacles, the iMOW® Ruler should be used for measuring the distances.
High obstacle: Clearance between a high obstacle and the perimeter wire.

The robotic mower must run completely within the mowing area and must not touch the obstacle. Through the clearance of 28 cm, the robotic mower travels along the perimeter wire without bumping into the obstacle in the corner around a high obstacle. Wire routing around high obstacles:
When routing around high obstacles (1) such as wall corners or high flowerbeds, the wire clearance must be maintained at the corners to prevent the robotic mower from scraping against the obstacle. Route the perimeter wire (2) with the aid of the iMOW® Ruler (3) as illustrated. Wire clearance: 28 cm

When routing the perimeter wire (1) at an internal corner at a high obstacle, measure the wire clearance with the iMOW® Ruler (2). Wire clearance: 28 cm Measuring the height of obstacles: The robotic mower can cross adjoining areas such as paths if the height of the stepped area is less than +/- 1 cm.
Height difference to obstacle that can be travelled on (1) is less than +/- 1 cm: route the perimeter wire (2) without clearance to the obstacle.
If necessary, set the cutting height so that the mowing deck of the robotic mower does not hit the obstacles. If the lowest cutting height is set, the robotic mower can consequently only clear lower stepped areas than specified.

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12.6 Acute corners

STIHL recommends laying linking sections together with the relevant no-go areas or secondary areas during wire routing.
In the case of retrospective installation, the wire loop must be cut and linking sections must then be integrated using the wire connectors supplied. (Ö 12.16)

The perimeter wire is routed as illustrated in acutely angled lawn corners (45° – 90°). The two angles must have a clearance of at least 28 cm so that the robotic mower can follow the edge.
Corners smaller than 45° should not be included in the wire routing.

The minimum wire clearance is 44 cm.
This results in the following space requirements in confined areas:
between high obstacles with a height +/- 1 cm, such as walls 100 cm,
between adjoining areas that can be travelled on with a stepped area height of less than +/- 1 cm, such as paths 44 cm.

12.7 Confined areas
If confined areas are to be installed, switch off offset drive home (passage) (Ö 11.13) or install guide loops. (Ö 12.12)
The robotic mower travels automatically in all confined areas, provided the minimum wire clearance is maintained. Narrower areas of the mowing area must be blocked off through appropriate routing of the perimeter wire.
If two mowing areas are linked via a narrow passage that can be travelled on, a corridor can be installed. (Ö 12.11)

12.8 Installing linking sections
The robotic mower ignores the perimeter wire signal if the wires are routed parallel and close together. Linking sections must be installed
where secondary areas are to be installed. (Ö 12.10)
where no-go areas are necessary. (Ö 12.9)

In linking sections, the perimeter wire (1) must be routed parallel, the wires must not cross and must be close to one another. Attach the linking section to the ground with a sufficient number of fixing pins (2).
12.9 No-go areas
No-go areas have to be installed around obstacles that the robotic
mower must not touch, around obstacles that are not
sufficiently sturdy,

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around obstacles that are too low. Minimum height: 8 cm
STIHL recommends
blocking off obstacles by means of nogo areas or removing them,
checking no-go areas after initial installation or after changes to the wire installation using the “Test edge” command. (Ö 11.13)
Clearance for routing the perimeter wire around a no-go area: 28 cm

No-go areas must have a minimum diameter of 56 cm. The clearance to the edge loop (X) must be greater than 44 cm.
Recommendation: No-go areas should have a maximum diameter of 2 – 3 m.

Route the perimeter wire (1) from the edge to the obstacle with the correct clearance around the obstacle (2) and attach it to the ground with a sufficient number of fixing pins (3). Then route the perimeter wire back to the edge again.
The perimeter wire must be routed parallel in a linking section. It is important to observe the routing direction around the no-go area (Ö 12.8)

The robotic mower travels along the perimeter wire (1) around the obstacle (2) without bumping into it.
To guarantee robust operation, no-go areas should be more or less round and not oval, angular or inwardly curved.

12.10 Secondary areas
Secondary areas are parts of the mowing area that cannot be mown fully automatically by the robotic mower because access is not possible. In this manner, several separate mowing areas can be surrounded with a single perimeter wire. The robotic mower must be manually taken from one mowing area to another. The mowing operation is initiated via the “Start” menu (Ö 11.5).

In order for docking to take place smoothly, no no-go area must be installed within a radius of at least 2 m around the docking station (1).

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The docking station (1) is installed in the mowing area A, which is cut fully automatically in accordance with the mowing plan. The secondary areas B and C are connected to the mowing area A via the linking sections (2). The perimeter wire must be routed in the same direction in all areas do not cross perimeter wires in the linking areas.
Activate secondary areas in the “More Settings Installation” menu. (Ö 11.13)
12.11 Corridors
If several mowing areas have to be mown (e.g. mowing areas in front of and behind the house), these can be linked by installing a corridor. This allows all the mowing areas to be mown automatically.

In corridors, the lawn is only mown along the path of the perimeter wire. If necessary, activate automatic edge mowing or mow the corridor area manually on a regular basis. (Ö 11.13)
If corridors are to be installed, switch off offset drive home (passage) (Ö 11.13) or install guide loops. (Ö 12.12)
The specified wire clearances and the corridor template are adapted to the routing of the perimeter wire on the lawn area. The dimensions will deviate if the perimeter wire is routed very deeply, e.g. under stone paving. Check the function and adapt the wire routing if necessary.
Requirements:
Minimum width is 88 cm between solid obstacles in the corridor area and 22 cm between paths that can be travelled on.
In longer corridors, a slightly increased space requirement should be taken into account depending on the ground conditions. Longer corridors should always be installed as centrally as possible between obstacles.
The corridor can be travelled on freely.
At least 1 starting point must be defined in the area of the second mowing area. (Ö 11.14)

The docking station (1) is installed in mowing area A. Mowing area B is linked to mowing area A by means of a
corridor (2). The perimeter wire (3) can be
continuously followed by the robotic mower. In order to mow mowing area B,
starting points (4) must be defined. (Ö 11.14)
Individual mowing operations can then be
started at the starting points, depending on
the setting (starting frequency).

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Installing the start and end of the corridor:

between paths/obstacles that can be travelled on (less than 1 cm in height e.g. paths): 22 cm.

The perimeter wire (1) must be routed in a funnel shape as illustrated at the start and end of a corridor. This prevents the robotic mower from accidentally driving into the corridor during mowing.
The dimensions are very much dependent on the environment and the terrain. For corridors with a funnel-shaped start or end, always check whether the robotic mower can pass through it.
Route the perimeter wire roughly one device length to the left and right of the corridor entrance.

Use the corridor template supplied (I) for installing the funnel-shaped entrance and exit areas. Installing the corridor:
Wire clearance in corridors: 22 cm This results in the following space requirements: between high obstacles (over 1 cm in
height e.g. walls): 88 cm,

In corridors, the perimeter wire (1) must be routed parallel and attached to the ground with a sufficient number of fixing pins (2). At the start and end of the corridor, funnelshaped entrance and exit areas must be installed.
12.12 Guide loops for offset drive home
If offset drive home is activated, guide loops must be provided
if an external docking station has been installed
or
if there are corridors or confined areas in the mowing area.

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Function: When the robotic mower follows the perimeter wire offset at a distance, it crosses one of these guide loops during the drive home. It then travels to the perimeter wire and on to the docking station. Guide loops with an external docking station:
To the right and left of the access to the external docking station, two guide loops (1) have to be installed at an angle of 90° to the perimeter wire. Minimum clearance to access: 2 m Guide loops with corridors:

To the right and left of the corridor access, two guide loops (1) have to be installed at an angle of 90° to the perimeter wire. These must always be located in the part of the mowing area that can only be accessed via a corridor. Minimum clearance to corridor access: 2m
If several consecutive corridors are installed, guide loops must be installed in each of the relevant mowing areas. Installation of a guide loop:
Guide loops must not be installed in the vicinity of corners. Minimum clearance to corners: 2 m

Install the guide loop in the mowing area as shown. The perimeter wire (1) must be fastened to the ground with two fixing pins at the edge A and must not be crossed. Minimum length: 100 cm Wire routing pin to pin B.
Attach the guide loop to the ground with a sufficient number of fixing pins.
12.13 Accurate mowing along edges
A strip with a width of up to 26 cm is left unmown along high obstacles. If necessary, edging stones can be laid around high obstacles.
Minimum width of edging stones:

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Slope with an incline of 5° – 15°:

12.15 Installing reserve wire
Reserve wire installed at regular intervals makes it easier to make any necessary corrections such as subsequently changing the position of the docking station or the routing of the perimeter wire. In particular, reserve wire should be installed near difficult passages.

Route the perimeter wire at a clearance of 28 cm to the obstacle. To ensure that the lawn edge is mown completely, the edging stones must have a width of at least 26 cm. If wider edging stones are laid, the lawn edge is cut even more precisely.
12.14 Sloping terrain along the perimeter wire
Note: For a robust installation, it is recommended to route the perimeter wire on a maximum slope of 10° (17%). The wire can be routed on a slope of 15° (27%), however this can significantly increase the effort and level of adjustment involved in routing the wire. Slopes should also always be noted in garden sketches.
In order for the robotic mower to automatically mow a slope in the mowing area (incline up to 15°) without any trouble, the perimeter wire must be installed in the slope with a minimum clearance to the edge of the slope.
A clearance of at least 100 cm must be observed for water features and sudden drops like edges and steps.

If there is a slope with an incline of 5° – 15° in the mowing area, the perimeter wire can be routed below the top edge of the slope in the slope as illustrated. The minimum clearance (0,5 m) from the top edge of the slope to the perimeter wire must be taken into account for trouble-free operation of the robotic mower. Slope with an incline > 15°:
If there is a slope with an incline > 15° on which a perimeter wire is to be installed in the mowing area, it is recommended that the perimeter wire (1) be routed in the flat area before the top edge of the slope. The top edge and area of the slope are not mown.

Route perimeter wire (1) as illustrated between 2 fixing pins spaced approx. 1 m apart. Attach the reserve wire to the ground in the centre using a further fixing pin.
12.16 Using wire connectors
In order to extend the perimeter wire or to connect loose wire ends, only the gel-filled wire connectors available as accessories may be used. They prevent premature wear (e.g. corrosion of the wire ends) and ensure optimal connections.
Make a note of the positions of the wire connectors on the sketch of the mowing area. (Ö 12.2)

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larger mown area. Sufficient clearance (at least 5 cm) between the robotic mower and obstacles must be ensured for edge following (Ö 9.12), (Ö 11.13). If necessary, increase the wire clearance to the obstacles.
Narrow edge clearances should always be noted in the garden sketch. (Ö 12.2)
Narrow edge clearances at the internal corner:

Narrow edge clearances at the external corner:

Insert loose, unstripped wire ends (1) to the stop in the wire connector (2). Press the wire connector together using suitable pliers ensure correct engagement.

Route the perimeter wire (1) as illustrated at the internal corner. Use the iMOW® Ruler (2).

Route the perimeter wire (1) as illustrated at the external corner. Use the iMOW® Ruler (2).
13. Docking station
13.1 Docking station controls

Attach the perimeter wire strain relief to the ground with two fixing pins as illustrated.
12.17 Narrow edge clearances It is possible to reduce the wire clearance to a high obstacle to 22 cm on a straight section (not at corners). This will result in a
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A circular red LED (1) provides information on the status of the docking station and the wire signal. Function button (2):
61

Switching docking station on and off
Activating Homecall
Activating find wire break
LED does not illuminate:
Docking station and wire signal are switched off.
LED illuminates continuously:
Docking station and wire signal are switched on.
Robotic mower is not docked.
LED flashes slowly (2 seconds on briefly off):
Robotic mower is docked, battery is charging if required.
Docking station and wire signal are switched on.
LED flashes rapidly:
Perimeter wire is interrupted wire break or wire is not correctly connected to the docking station.(Ö 16.6)
LED illuminates for 3 seconds, followed by 1 second pause:
Homecall was activated.
LED gives 3 short flashes, 3 long flashes, 3 short flashes, followed by approx. 5 second pause (SOS signal):
Error in the docking station.
Switching the docking station on and off: The docking station is switched on and off automatically during automatic operation.

If the robotic mower is not docked, briefly pressing the button activates the docking station. The wire signal remains active for 48 hours if the robotic mower has not previously docked.
Pressing the button for 2 seconds switches off the docking station.
Activating Homecall: Briefly press the button twice within 2 seconds during a mowing operation. The robotic mower ends the running mowing operation, searches for the perimeter wire and returns to the docking station to recharge the battery. No further mowing operation takes place in the current active time.
Homecall remains active until the robotic mower is docked. Homecall can also be ended by pressing the button on the docking station twice again.
14. Notes on mowing
14.1 General
The robotic mower is designed for the automatic mowing of lawns. The grass is kept short through continuous mowing. The result is a perfect, thick lawn.
Lawns that have not previously been mown using a conventional lawn mower will only be mown neatly following several mowing operations. Especially in the case of high grass, a good cutting pattern is only achieved after a few mowing operations.
In hot, dry conditions, the lawn should not be kept too short as it will otherwise be burnt by the sun and become unsightly.

The cutting pattern will be better with a sharp blade than with a blunt one; the blade should therefore be replaced regularly.
14.2 Mulching
The robotic mower is a mulching mower.
During mulching, the grass clippings are further shredded in the mowing deck housing after cutting. They then fall back into the turf, where they remain and decompose.
The finely shredded clippings return organic nutrients to the lawn, serving as a natural fertiliser. Fertiliser requirements are thereby reduced significantly.
14.3 Active times
In the mow plan type “Standard”, the robotic mower mows throughout the entire active time, only interrupted by charging operations.
In the mow plan type “Dynamic”, the robotic mower is allowed to leave the docking station at any time during the active times and mow the lawn. During these times, mowing operations, charging operations and rest periods take place. The robotic mower automatically distributes the mowing and charging operations between the available time windows.
During installation, active times are automatically distributed over the entire week. Time reserves are taken into account this ensures perfect lawn care, even if individual mowing operations cannot take place, (e.g. due to rain).

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During the active times, third parties must keep out of the danger area. The active times should be adapted accordingly. Moreover, the applicable local regulations on the use of robotic mowers as well as the information in the “For your safety” section (Ö 6.1) must be observed and the active times changed accordingly in the “Mowing plan” menu as required. (Ö 11.7) In particular, you should check the times of the day and night at which it is permissible to use the machine with the responsible authorities.

14.4 Mowing duration
The mowing duration specifies how many hours per week the lawn is to be mown. It can be extended or reduced. (Ö 11.7)
The mowing duration corresponds to the time during which the robotic mower mows the lawn. Times during which the battery is charged are not part of the mowing duration.
During initial installation, the robotic mower automatically calculates the mowing duration based on the specified size of the mowing area. This reference value is based on a normal lawn under dry conditions.
Mowing performance:
For 100 m2, the robotic mower needs on average:

RMI 422:
RMI 422 P, RMI 422 PC:

120 minutes 100 minutes

14.5 Home area (RMI 422 PC)
The robotic mower identifies its location using the built-in GPS receiver. During each edge following run to check the correct wire routing (Ö 9.12) and when learning the starting points (Ö 11.14), the robotic mower stores the coordinates of the most westerly, easterly, southerly and northerly point.
This area is defined as the home area and the robotic mower can be used here. The coordinates are updated each time edge following is repeated.
When GPS protection is activated, the owner of the machine is notified if the machine is operated outside the home area. The PIN code is also requested on the robotic mower display.
15. Operating the machine
15.1 Preparation
An installation assistant is available for initial installation. (Ö 9.)
The robotic mower should be charged and operated at an ambient temperature between +5°C and +40°C. Install the docking station (Ö 9.8) Route (Ö 9.9) and connect (Ö 9.10) the perimeter wire
Remove foreign bodies (e.g. toys, tools) from the mowing area
Charge the battery (Ö 15.7) Set the time and date (Ö 11.10)

Check the mowing plan and adapt if necessary in particular it must be ensured that third parties keep away from the danger area during active times. (Ö 11.7) Cut very high grass short using a conventional lawn mower prior to use of the robotic mower (e.g. following a lengthy break).
15.2 Flap The robotic mower is equipped with a flap which protects the display from the weather and from inadvertent operation. If the flap is opened during use of the robotic mower, operation is stopped and the mowing blade and robotic mower come to a standstill. Opening the flap:
For safety reasons, the Stop button must be pressed before opening the flap during operation of the robotic mower.
Grasp the flap (1) at the lifting point (A) and release upwards by pulling lightly. Open the flap as far as the stop.

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The opened flap can be removed upwards from the machine. This design is implemented for safety reasons: this ensures that the machine cannot be lifted and carried by the flap.
Closing the flap:
Carefully fold the flap downwards and allow to engage.
The robotic mower can only be operated when the flap is fully engaged.
15.3 Adapting the programming
The current programming can be seen in the mowing plan or, in the case of the model RMI 422 PC, in the iMOW® app. (Ö 11.7) The mowing plan is calculated based on the size of the mowing area during installation or during the creation of a new mowing plan.
The active times and the mowing duration can be changed individually. With the mow plan type Standard the robotic mower mows and charges precisely within the active times, with the mow plan type Dynamic the necessary mowing operations are automatically distributed over the possible active times. If required, several mowing or charging operations can run during an active time. If desired, the edge of the mowing area can be cut automatically at regular intervals. (Ö 11.13)
Up to three different active times per day are possible. (Ö 11.7)
If the robotic mower has to travel to specific areas of the mowing area, starting points must be defined. (Ö 11.14)

If the mow plan type Dynamic is selected, not all the active times may be necessary for optimal lawn care under certain circumstances (e.g. warm weather or generous time window).
Changing the active times: (Ö 11.7)
Additional active times for further mowing operations
Adapting the time window, e.g. to prevent mowing during the morning or night.
Omitting individual active times because the mowing area is e.g. being used for a party.
Extending the mowing duration: (Ö 11.7)
There are areas which are not mown sufficiently, e.g. because the mowing area has many corners.
Intensive grass growth during the growing period
Particularly dense lawn
Reducing the mowing duration: (Ö 11.7)
Reduced grass growth due to heat, cold or dryness
Creation of a new mowing plan: (Ö 11.7)
The size of the mowing area has been changed.
New installation: (Ö 9.6)
New location of the docking station.
Initial operation on a new mowing area.

15.4 Automatic mowing
Switching on automatic mowing: When automatic mowing is switched on, the Automatic symbol appears next to the battery symbol on the display. (Ö 11.7)
Starting mowing operation: With the mow plan type Standard, the robotic mower sets off at the beginning of each active time and mows the lawn. With the mow plan type Dynamic, the mowing operations are automatically distributed between the available active times. (Ö 11.7)
Ending mowing operation: When the battery is discharged, the robotic mower automatically travels back to the docking station. (Ö 15.6) A running mowing operation can be ended manually at any time using the STOP button or the “Drive home” menu. (Ö 5.1) Activating Homecall on the docking station also ends the running mowing operation immediately. (Ö 13.1) RMI 422 PC: The mowing operation can also be ended using the app send the robotic mower to the docking station. (Ö 10.)
Mowing areas that the robotic mower reaches via a corridor are only mown if starting points have been defined in the relevant area.
15.5 Mowing independently of active times
Activate the docked robotic mower by pressing a button. This also switches on the docking station.

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Mowing areas with docking station:
Immediate mowing: Call up the Start mowing command (Ö 11.5). The mowing operation starts immediately and continues until the selected time. A starting point can be selected, if available.
RMI 422 PC: Start mowing using the app. (Ö 10.) The mowing operation starts at the selected start time and continues until the selected end time. A starting point can be selected, if available.
Ending mowing manually: A running mowing operation can be ended at any time using the STOP button or the “Drive home” menu (Ö 11.6). (Ö 5.1) Activating Homecall on the docking station also ends the running mowing operation immediately. (Ö 13.1) RMI 422 PC: The mowing operation can also be ended using the app send the robotic mower to the docking station. (Ö 10.)
If necessary, the robotic mower charges the battery in the interim and then continues the mowing operation until the selected end time.
Secondary areas:
Activate the robotic mower upright in the docking station. This also activates the docking station.
Carry the robotic mower to the secondary area.
Activate the secondary area. (Ö 11.13)

Immediate mowing: Call up the Start mowing command (Ö 11.5). The mowing operation starts immediately and continues until the selected time.
Ending mowing: When the selected end time is reached, the robotic mower travels to the perimeter wire and comes to a standstill. Return the machine to the docking station to recharge the battery and confirm the displayed message. (Ö 24.) A running mowing operation can be ended manually at any time using the STOP button. (Ö 5.1)
If the battery runs flat before the selected end time, the mowing operation is shortened accordingly.
15.6 Docking the robotic mower
Docking during automatic operation:
The robotic mower automatically travels to the docking station when the

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STIHL RMI 422 Series Compact Robotic Mower With Mulching Function Instruction Manual

RMI 422 Series Compact Robotic Mower With Mulching Function

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