RYOBI OLM1841H Cordless Lawn Mower Instruction Manual

: October 30, 2023
: RYOBI

Table of Contents

OLM1841H Cordless Lawn Mower
GENERAL SAFETY WARNINGS
BATTERY TOOLS USE AND CARE
MAINTENANCE
SYMBOLS ON THE PRODUCT
RLM18X41H240
Product speciﬁcations
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

OLM1841H Cordless Lawn Mower
Instruction Manual

OLM1841H Cordless Lawn Mower

Important!
It is essential that you read the instructions in this manual before assembling, maintaining and operating the product.
Subject to technical mode cation.
Safety, performance, and dependability have been given top priority in the design of your cordless lawn mower.

INTENDED USE
The cordless lawn mower is only intended for use outdoors.
The product is designed for domestic lawn mowing. The cutting blade should rotate approximately parallel to the ground over which it is being wheeled. All four wheels should touch the ground while mowing. It is a pedestrian- controlled walk-behind mower designed to be pushed by hand.
The product should never be operated with the wheels off the ground; it should not be pulled or ridden on. It should not be used to cut anything other than domestic grass lawns. Do not use the product for any other purpose.

GENERAL SAFETY WARNINGS

WARNING
When using the product, the safety rules must be followed. For your own safety and that of bystanders, please read these instructions before operating the product. Please keep the instructions safe for later use.

WARNING
The product should only be operated with the battery packs speciﬁed in this manual.
When using battery operated product, basic safety precautions should always be followed to reduce the risk of ﬁ re, leaking batteries and personal injury.

PERSONAL SAFETY

The product is capable of amputating hands and feet, and of throwing objects. Failure to observe all safety instructions could result in serious injury or death.
Be familiar with the controls and the correct use of the product.
Never allow children or people with reduced physical, sensory or mental capabilities or persons not familiar with these instructions to operate, clean or maintain the product. Local regulations may restrict the age of the operator. Children should be adequately supervised to ensure they do not play with the product.
Stay alert, watch what you are doing, and use common sense when operating the product. Do not operate the product while tired or under the influence of drugs, alcohol, or medication. A lapse in concentration while operating the product may result in serious personal injury.
Wear heavy, long trousers, long sleeves, and sturdy anti-slip footwear. Do not wear short trousers, sandals, or go barefoot. Avoid wearing clothing that is loose fitting or that has hanging cords or ties.
Always wear safety glasses with side shields.
Always be sure of your footing especially on slopes. Keep firm footing and balance. Walk, never run.
Use the product across the face of slopes, never up and down. Exercise extreme caution when changing direction on slopes.
Do not use the product near drop-offs, ditches, excessively steep slopes, or embankments. Poor footing could cause a slip and fall accident.

WORK AREA SAFETY

Never use product while people, especially children, or pets are within 15 m because of the danger of objects being thrown by contact with the blade.
Objects struck by the lawn mower blade can cause severe injuries to persons. Thoroughly inspect the area where the product is to be used and remove all rocks, sticks, metal, wire, bones, toys, or other foreign objects. Remember, string or wire may entangle with the cutting means.
Always use the product in the daylight or with good artificial light.
Do not operate the product in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. The product creates sparks which may ignite the dust or fumes.
Do not operate the product on wet grass or in the rain.
Do not use the product when there is a risk of lightning.
Keep in mind that the operator or user is responsible for accidents or hazards occurring to other people or their property.
Tragic accidents can occur if the operator is not alert to the presence of children. Children are often attracted to the product and the mowing activity. Never assume that children will remain where you last saw them.
Keep children out of the mowing area and under the watchful care of a responsible adult other than the operator, be alert and turn the product off if a child enters the area.
Use extra care when approaching blind corners, shrubs, trees, or other objects including overhanging shrubs, which may block your view.

BATTERY TOOLS USE AND CARE

Read, understand, and always follow the safety instructions which came with your battery and charger. Failure to do so may result in electric shock, fire or other hazardous situations. Keep all the instructions together in a safe place for future reference.
Battery-operated products do not have to be plugged into an electrical outlet; therefore, they are always in operating condition. Remove the isolator key whenever you are not operating the product.
Remove the battery pack before making any adjustments, cleaning, or removing material from the product.
Ensure the isolator key is removed before inserting battery pack.
A battery pack must be recharged only with the charger specified by the manufacturer. Using a charger with an incompatible battery pack may create a risk of fire. Use battery pack only with charger listed.
Use only battery pack intended specifically for the product. Use of any other battery packs may result in a risk of fire, electric shock, or injury to persons.
When battery pack is not in use, keep it away from other metal objects like, paper clips, coins, keys, nails, screws, or other small metal objects, that can make a connection from one terminal to another. Shorting the battery pack terminals together may cause sparks, burns, fire or explosion.
Do not place battery products or their batteries near fire or heat. This increases the risk of explosion and possibly injury.
Do not open or mutilate the battery pack. Released electrolyte is corrosive and may cause damage to the eyes or skin. It may be toxic if swallowed.
Protect the battery pack against moisture and water. Do not charge the product in a damp or wet location. Following this rule will reduce the risk of electric shock.
In case of damage and improper use of the battery, vapour may be emitted. Provide for fresh air and seek medical help in case of complaints. The vapour can irritate the respiratory system.
Do not leave the battery pack inside a vehicle in hot or cold conditions.
Do not incinerate the battery.
Under abusive conditions, liquid may be ejected from the battery; avoid contact. If contact accidentally occurs, flush with water. If liquid contacts eyes, additionally seek medical help. Liquid ejected from the battery may cause irritation or burns.

LAWN MOWER SAFETY WARNINGS

Before use, always visually inspect to ensure blades, blade bolts, and cutter assembly are not worn or damaged.
Replace worn or damaged blades and bolts in sets to preserve balance.
The blade on the product is sharp. Use extreme caution and wear heavy-duty gloves when fitting, replacing, cleaning or checking bolt security.
Bring the product to an authorised service centre to replace damaged or unreadable labels.
Check all nuts, bolts, and screws at frequent intervals for proper tightness to be sure that the product is in safe working condition.
Frequently check the grass catcher for wear, holes or deterioration.
Replace worn or damaged parts before operating the product.
The product must be started with the user behind the handlebars in the operator safety zone. Never start the product if:
● all four wheels are not on the ground
● the grass discharge chute is exposed and is not protected by the grass catcher and grass discharge chute cover.
● hands and feet of all persons are not clear of the cutting enclosure.
Never operate the product if the on/off switch on the handlebar does not properly start and stop the product.
Never attempt to lock the on/off switches in the on position, this is extremely dangerous.
Do not force the product. It will do the job better and safer at the speed for which it was designed.
Stop the blade when crossing gravel surfaces.
Do not pull the product backwards unless absolutely necessary. If you must back the product away from a wall or obstruction, first look down and behind to avoid tripping or pulling the product over your feet.
Stop the motor and allow the blade to stop if the product has to be tilted for transportation when crossing surfaces other than grass, and when transporting the product to and from the work area.
Never use the product with defective guards or shields, or without safety devices, for example, deflectors and/ or grass collectors, in place.
Do not tilt the product when switching on the motor or while the motor is running. If absolutely necessary, you may raise the front of the lawn mower by no more than 5 cm to enable easier starting. Press down on the handlebar to achieve this. Always return the mower to its normal position with all wheels on the ground before cutting. Tilting the mower exposes the blade and increases the probability of objects being thrown and accidental contact with the blade.
Switch on the motor carefully according to instructions and keep hands and feet away from blades. Do not put hands or feet near or under rotating parts.
Never pick up or carry the product while it is running.
Stop the motor and remove isolator key. Make sure all moving parts have come to a complete stop before:
● leaving the product unattended (including disposal of grass clippings).
● clearing blockages or unclogging discharge chute
● checking, cleaning, or working on the product
● inspecting the product after striking a foreign object (and make repairs as necessary before restarting and operating the product)
● removing the grass catcher or opening the grass discharge chute cover
● If the product starts to vibrate abnormally, check immediately to:
– inspect for damage, particularly the blades
– replace or repair any damaged parts
– check for and tighten any loose parts
Avoid holes, ruts, bumps, rocks, property stakes, or other hidden objects. Uneven terrain could cause a slip-and-fall accident.
Always ensure the motor control cable is never trapped, pinched or otherwise damaged during assembly or when folding the handle.

PRODUCT FEATURES

OVERLOAD AND OVERHEAT PROTECTION
The product has an overload protection device. When overloading is detected, the product will automatically switch off. If the overload protector is actuated, the on-off button must be released. Press the on-off button to restart the product. The battery pack has overheat protection. Excessive temperatures will cause the battery to stop powering the product. Feel the battery pack; if it is too warm, allow it to cool down before resuming operation. If the product still does not work, recharge the battery.
NOTE: The battery pack LED indicator will not work if the battery protection feature has caused the battery pack to stop powering the product. Release the on-off button or remove the battery pack from the product and the battery pack LED indicator will resume normal function.

TELESCOPIC HANDLE
The product is equipped with a telescopic handle that can be adjusted for storage and operation. The telescopic handle must be fully extended when setting up the product for use. leaving the product unattended NOTE: The product will not function if the telescopic handle is not fully extended and the two latches are not in the correct position.

GENERAL MOWING TIPS
The run time of the battery depends on the condition, length, and density of the grass. Adjust the cutting height of the lawn mower to suit the current condition of the lawn.

Grass conditions	Suggested height adjustment	Coverage (maximum)
First pass	Succeeding passes
Very thin / Dry	3	2
Thin / Dry	4	3 → 2

Medium /
Dense| 5| 4 → 3| 400 m 2 *

battery: RB18L40 x 2
- For best performance, always cut off onethird or less of the total height of the grass.
- When cutting long grass, reduce walking speed to allow for more effective cutting and a proper discharge of the clippings.
- Do not cut wet grass; it will stick to the underside of the deck and prevent proper collection or discharge of grass clippings.
- New or thick grass may require a higher cutting height.
- If you wish to collect the grass cuttings for disposal, remove the mulching plug and fit the grass catcher making sure the top flap is properly closed. Empty the grass catcher regularly; otherwise, the discharge chute will become blocked with grass cuttings.
- If you are making a light cut and wish for the grass cuttings to remain on the lawn, fit the mulching plug and close the top flap to cover the discharge opening. It is not necessary to fit the grass catcher in this case.
- The product is designed to operate and cut most effectively when moving forwards.
- A higher cutting height will extend the run time of the battery.

TRANSPORTATION AND STORAGE

Stop the product, remove the isolator key and the battery. Make sure that all moving parts have come to a complete stop. Allow the product to cool down before storing or transporting.
Clean all foreign materials from the product. Store the product in a cool, dry, and well-ventilated place that is inaccessible to children. Keep away from corrosive agents such as garden chemicals and de-icing salts. Do not store outdoors.
For transportation in vehicles, remove isolator key and secure the product against movement or falling to prevent injury to persons or damage to the product.

WARNING Use extreme caution when lifting or tilting the product for maintenance, cleaning, storage, or transportation, the blade is sharp, keep all body parts away from the blade while it is exposed.

MAINTENANCE

WARNING Use only original manufacturer’s replacement parts, accessories and attachments. Failure to do so can cause possible injury, contribute to poor performance, and may void your warranty.

WARNING Servicing requires extreme care and knowledge and should be performed only by a qualiﬁed service technician. For service, bring the product to an authorized service center for repair. When servicing, use only original replacement parts.

Stop the product, remove the isolator key and the battery. Make sure that all moving parts have come to a complete stop before any cleaning or maintenance task.
You may make adjustments and repairs described here. For other repairs, contact an authorized service center.
Replace worn or damaged part for safety.
Check the grass collector frequently for wear or deterioration.
After each use, clean the product with a soft dry cloth. Any part that is damaged should be properly repaired or replaced by an authorized service center.
Check all nuts, bolts and screws at frequent intervals for proper tightness to ensure the product is in safe working condition.
Be careful during adjustment of the product to prevent entrapment of the fingers between moving blades and fixed parts of the product.
When servicing the blades, be aware that even though the power source is switched off, the blades can still be moved.
The blade on the product is sharp. Use extreme caution and wear heavy-duty gloves when fitting, replacing, cleaning or checking bolt security.
Replace damaged blades and bolts in sets to preserve balance.
The blade bolts must be adequately tightened. See the manufacturer’s recommendations for blade bolt torque which can be found in the product specification table in this manual.

CLEARING BLOCKAGES

Stop the product, remove the isolator key and the battery. Make sure that all moving parts have come to a complete stop.
Always wear heavy-duty gloves when checking or clearing a blockage.
The blades are sharp and the blockage itself could be a sharp object.
Remove the grass catcher, check for and carefully clear obstructions.
Check the grass discharge chute for blockages and carefully clear.
Turn the product on its side, check its underside, and the area around the blade. If any blockages are found, remove carefully. Remember the blade may move during cleaning.

RESIDUAL RISKS
Even when the product is used as prescribed, it is still impossible to completely eliminate certain residual risk factors. The following hazards may arise in use and the operator should pay special attention to avoid the following:

injury caused by vibration
Always use the right tool for the job. Use designated handles and restrict working time and exposure.
injury caused by noise
Exposure to noise can cause hearing injury. Wear ear protection and limit exposure.
injury from contact with the blades
injury caused by thrown objects

RISK REDUCTION

See the manufacturer’s It has been reported that vibrations from handheld tools may contribute to a condition called Raynaud’s Syndrome. Symptoms may include tingling, numbness and blanching of the ﬁngers, usually apparent upon exposure to cold. Hereditary factors, exposure to cold and dampness, diet, smoking and work practices are all thought to contribute to the development of these symptoms. There are measures that can be taken by the operator to possibly reduce the effects of vibration:

Keep your body warm in cold weather. When operating the product, wear gloves to keep the hands and wrists warm. It is reported that cold weather is a major factor contributing to Raynaud’s Syndrome.
After each period of operation, exercise to increase blood circulation.
Take frequent work breaks. Limit the amount of exposure per day.

If you experience any of the symptoms of this condition, immediately discontinue use and see your physician.

WARNING Injuries may be caused, or aggravated, by prolonged use of a tool. When using any tool for prolonged periods, ensure you take regular breaks.

KNOW YOUR PRODUCT
See page 192.
Parts

On-off button
Start button
Motor control cable
Telescopic handle
Grass catcher full indicator
Height adjustment lever
Battery door
Handle lock
Grass catcher
Quick release fastener
Rear wheel
Front wheel
Isolator key
Mulching plug
Battery
Charger

SYMBOLS ON THE PRODUCT

Read and understand all instructions before operating the product, follow all warnings and safety instructions.
Wear ear protection.
Wear eye protection.
Do not operate on inclines greater than 15°. Mow across the face of slopes, never up and down.
Do not expose to rain or damp condition.
Beware of sharp blades. Blades continue to rotate after the motor is switched off – Remove isolator key before maintenance
Beware of thrown or ﬂying objects. Keep all bystanders, especially children and pets, at least 15 m away from the operating area.
Press the Start button and then the On-off button (A or B) to start the product. Release the Start button and keep pressing the On-off button to run the product. Release the On-off button to stop the product.
Go
Stop

LED Indicators The product is equipped with two LEDs that indicate the battery pack charge status. The top LED indicator displays the charge status of the battery pack on the top port. The bottom LED indicator displays the charge status of the battery pack on the bottom port. Press the “?” button to check the battery pack charge status.

LED indicator “On” indicates that the battery pack is fully charged.
LED indicator “Flashing” indicates that the battery pack has been fully discharged and needs to be charged.

Please read the instructions carefully before using the product.
Waste electrical products should not be disposed of with household waste. Please recycle where facilities exist. Check with your local authority or retailer for recycling advice.
Conforms to all regulatory standards in the country in the EU where the product is purchased.
**** EurAsian Conformity Mark
Ukrainian mark of conformity
The guaranteed sound power level is shown on this label by 94 dB.

The following signal words and meanings are intended to explain the levels of risk associated with this product:
DANGER Indicates an imminently hazardous situation, which, if not avoided, will result in death or serious injury.

WARNING Indicates a potentially hazardous situation, which, if not avoided, could result in death or serious injury.
CAUTION Indicates a potentially hazardous situation, which, if not avoided, may result in minor or moderate injury.
CAUTION (Without Safety Alert Symbol) Indicates a situation that may result in property damage.

SYMBOLS IN THIS MANUAL

Parts or accessories sold separately
Note
Warning

RLM18X41H240

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Product speciﬁcations

Cordless lawn mower
Model
Rated voltage
Width of cut
Height of cut
No-load speed
Weight (without battery)
Grass catcher capacity
Blade bolt torque
Vibration level (in accordance with Annex FF of EN 603352-77) Right handle
Left handle
Uncertainty of measurement
Declared vibration value
Noise emission level (in accordance with Annex GG of EN 60335-2-77)
A-Weighted sound pressure level at operator’s position
Uncertainty of measurement
A-Weighted sound power level
Uncertainty of measurement
Noise emission level (in accordance with ISO 4871)
Declared A-Weighted soundpressure level at operator’sposition
Declared A-Weighted sound power level
Battery and charger
Model
Battery pack
Weight
Charger
Compatible battery packs
Compatible chargers
Replacement Part
Blade

RYOBI®WARRANTY APPLICATION CONDITIONS

In addition to any statutory rights resulting from the purchase, this product is covered by a warranty as stated below.

The warranty period is 24 months for consumers and commences on the date when the product was purchased. This date has to be documented by an invoice or other proof of purchase. The product is designed and dedicated to consumer and private use only. So there is no warranty provided in case of professional or commercial use. This warranty applies only on new products.
There is a possibility to extend for a part of the range of power tools (AC/DC) the warranty period over the period described above using the registration on the www.ryobitools.eu website. The eligibility of products for extended warranty is clearly displayed in stores and / or on packaging and is contained within the product documentation. The end user is required to register his/her newly- acquired products online within 30 days from the date of purchase. The end user may register for the extended warranty in his/her country of residence if listed on the online registration form where this option is valid. Furthermore, end users must give their consent to the storage of their personal data that is required to be entered online. They must also accept the terms and conditions. The registration confirmation receipt, which is sent out by e-mail, and the original invoice showing the date of purchase will serve as proof of the extended warranty.
The warranty covers all defects of the product during the warranty period due to faults in workmanship or material at the purchase date. The warranty is limited to repair and/or replacement and does not include any other obligations including but not limited to incidental or consequential damages. The warranty is not valid if the product has been misused, used contrary to the instruction manual, or has been incorrectly connected to a power supply. This warranty does not apply to:
– any damage to the product that is the result of improper or lack of maintenance
– any product that has been altered or modified
– any product where original identification (trade mark, serial number) markings have been defaced, altered or removed
– any damage caused by non-observance of the instruction manual
– any product not displaying the CE approval mark on the rating plate
– any product that has been attempted to be repaired by a non-authorised warranty service centre or without prior authorization by Techtronic Industries
– any product connected to improper power supply (amps, voltage, frequency)
– any product used with inappropriate fuel mixture (fuel, oil, ratio of oil/ fuel mixture)
– any damage caused by external influences (water, chemical, physical, shocks) or foreign substances
– normal wear and tear spare parts
– inappropriate use, overloading of the tool
– use of non-approved accessories or parts
– Accessories provided with the tool or purchased separately including but not limited to blades, saw chains, cutting lines, etc.
– Any periodic adjustments to or maintenance cleaning of carburetors
– Components (parts and accessories) subject to natural wear and tear, including but not limited to bump knobs, drive belts, clutch, blades of hedge trimmers or lawn mowers, harness, cable throttle, carbon brushes, power cord, tines, felt washers, hitch pins, blower fans, blower and vacuum tubes, vacuum bag and straps, guide bars, saw chains, hoses, connector fittings, spray nozzles, wheels, spray wands, inner reels, outer spools, cutting lines, spark plugs, air filters, gas filters, mulching blades, etc.
For servicing, the product must be sent or presented to a RYOBI authorised service station listed for each country in the following list of service station addresses. In some countries your local RYOBI dealer undertakes to send the product to the RYOBI service organisation. When sending a product to a RYOBI service station, the product should be safely packed without any dangerous contents such as petrol, marked with sender’s address and accompanied by a short description of the fault.
A repair / replacement under this warranty is free of charge. It does not constitute an extension or a new start of the warranty period. Exchanged parts or products become our property. In some countries delivery charges or postage will have to be paid by the sender. Your statutory rights arising from the purchase of the product remain unaffected.
This warranty is valid in the European Community, Switzerland, Iceland, Norway, Liechtenstein, Turkey and Russia. Outside these areas, please contact your authorised RYOBI dealer to determine if another warranty applies.

AUTHORISED SERVICE CENTRE
To find an authorised service centre near you, visit http://en.ryobitools.eu/header/ervice-and-support/service-agents.
EC DECLARATION OF CONFORMITY

Techtronic Industries GmbH
Max-Eyth-Straße 10,
71364 Winnenden, Germany