AL-KO 875III Bar Mower Cutting Instruction Manual

: June 17, 2024
: AL-KO

Table of Contents

AL-KO 875III Bar Mower Cutting
Product Information
Product Usage Instructions
INSTALLATION INSTRUCTION
INFORMATION
SAFETY INSTRUCTIONS
ASSEMBLY
MAINTENANCE AND CARE
TROUBLESHOOTING
WARRANTY
PARTS
CONTACT
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

AL-KO 875III Bar Mower Cutting

AL-KO-875III-Bar-Mower-Cutting-PRODUCT

Product Information

Specifications
- Model: BM 660
- Art. Nr.: 112885
- Engine: AL-KO Pro 140
- Displacement: 140 ccm
- Power: 2.1 kW
- Rotation Speed: 3000 U/min
- Dimensions: 80 x 59 x 55 cm
- Weight: 49 kg
- Tire Size: 4.00-6

Product Usage Instructions

Assembly
- Follow these steps to assemble the product:
- Open the packaging and take out all the components.
- Refer to the diagram in the user manual to identify the different parts.
- Attach the handlebar to the main body of the product using the provided screws and tools.
- Tighten all screws securely.
Starting the Engine
- To start the engine, follow these steps:
- Ensure that the fuel tank is filled with the recommended fuel.
- Turn on the fuel valve located near the engine.
- Move the throttle lever to the “Start” position.
- Hold down the primer bulb until the fuel is visible inside it.
- Pull the starter cord firmly and quickly to start the engine.
Operating the Product
- To operate the product, follow these guidelines:
- Always wear appropriate safety gear, including goggles and gloves.
- Adjust the cutting height according to your needs using the height adjustment lever.
- Start mowing in a straight line, overlapping each pass slightly.
- Avoid mowing on wet or uneven terrain.
- Regularly check the fuel level and refill as needed.
Frequently Asked Questions (FAQ)
- Q: How often should I sharpen the blades?
- A: It is recommended to sharpen the blades after every 25 hours of use or at the beginning of each mowing season.
- Q: Can I use this product on hilly terrain?
- A: Yes, this product is suitable for use on moderate slopes. However, exercise caution and avoid steep inclines.
- Q: What type of fuel should I use?
- A: Use unleaded gasoline with a minimum octane rating of 87 (R+M)/2. Do not use ethanol-blended fuels.

INSTALLATION INSTRUCTION

$AL-KO-875III-Bar-Mower-Cutting-FIG-1 $1$$ $AL-KO- 875III-Bar-Mower-Cutting-FIG-1 $2$$ $AL-KO- 875III-Bar-Mower-Cutting-FIG-1 $3$$ $AL-KO- 875III-Bar-Mower-Cutting-FIG-1 $4$$

INFORMATION

$AL-KO-875III-Bar-Mower-Cutting-FIG-1 $5$$ $AL-KO- 875III-Bar-Mower-Cutting-FIG-1 $6$$

ABOUT THIS DOCUMENTATION

Read this documentation before starting up the machine.
This is a precondition for safe working and flawless operation.
Observe the safety warnings in this documentation and on the product.
This documentation is a permanent integral part of the product described and must be passed on to the new owner if the product is sold.

Explanation of symbols

CAUTION! Following these safety warnings carefully can prevent personal injury and/or material damage.
Special instructions for greater ease of understanding and improved handling.

Designated use

This mower is intended for use in private and hobby gardens only.
It must be operated with genuine accessories only (cutter bar, winter kit).
CAUTION! The equipment is intended for domestic use only.

SYMBOLS ON THE MACHINE

Cleaning and maintenance of the scythe attachment.

SAFETY INSTRUCTIONS

The equipment should be used only if in good order and condition
Young people under 16 years of age, and people who do not know the instructions for use, are not allowed to use the machine.
Observe local regulations regarding minimum age requirements for operating the machine.
Wear long trousers and sturdy shoes.
Remove foreign objects from the working area.
Check the ground on which the mower is going to be used. Remove all objects that could be picked up and thrown out.
Never mow when there is anyone, especially children or animals, in the vicinity.
Observe local ordinances regarding operating times.
Only mow during daylight hours or with good artificial lighting.

CAUTION!

Always perform a visual check prior to start-up.
Only replace damaged or worn parts with genuine spare parts.
The user is responsible for accidents involving other people and their property.
Do not deactivate safety and protection devices
When starting the engine
No one is allowed to be in front of the scythe attachment
The blade and wheel drive must be switched off
Only use the mower in grassy areas.
It is essential to put the guard bar on the scythe attachment for transporting or lifting the mower.
Switch off the blade drive when moving outside the mowing area.
Do not place your hands and feet close to any rotating parts.
Only control the machine using the handlebar.
This ensures the necessary safety clearance.
Always ensure stability when working.
Keep exhaust and engine clean.

CAUTION!

Danger of fire! Remove flammable objects from the exhaust and the cylinder area.

If working on slopes:
- Never work on a smooth and slippery slope.
- Always make sure you are positioned securely.
- Always work across the slope, never upward or downward.
- Do not work on slopes with a more than 10° gradient!
- Take particular care when turning!
Do not leave the appliance unsupervised.
Before leaving the equipment unattended:
- Turn the engine off
- Wait for the cutting unit to stop
- Remove the spark plug connector
Do not change the engine governor settings.

SAFETY INSTRUCTIONS FOR THE SCYTHE ATTACHMENT

Some of the blades on the scythe attachment are exposed. These represent a significant risk of injury in case of lack of care during handling. Always put on the guard bar for the scythe attachment under the following circumstances:

Installing the scythe attachment on the mower
Cleaning the machine
Transport and storage of the mower
Assembly work on the scythe attachment
Renewing damaged guard bars

FUEL AND OPERATING FLUIDS

WARNING! Fire danger! Petrol is highly flammable!

Store petrol in designated containers only.
Only refuel in the open air.
Never smoke while refilling!
Use a funnel or a filler pipe when refueling so that no fuel is spilled on the engine, the deck or the ground.
Do not open the tank cap while the engine is running or if the machine is hot.
Replace a damaged petrol tank and/or tank cap.
Renew exhaust silencers if damaged.
If petrol has been spilled:
- Do not start the engine
- Do not start the equipment
- Clean the equipment.

CAUTION!

The danger of burns! Running engines generate heat. Parts of the engine, especially the exhaust, get extremely hot.
WARNING! Never leave an engine running in an enclosed space. Toxic hazard!

ASSEMBLY

CAUTION!

The machine must not be put in operation before it has been assembled completely.
Assemble this mower by the separately enclosed assembly manual.

STARTUP Initial commissioning

Numbers in italics, e.g. (2-1), refer to the figures.
WARNING! Petrol engine: Fill with oil and petrol before taking into operation for the first time!

Travel transmission

The gear oil is a factory fill.
Always observe the operating instructions supplied by the engine manufacturer.

Höhe des Führungsholm einstellen Setting the handlebar height

Setting the handlebar height The height is usually adjusted to hip level.

Loosen the screws on the housing console.
Set the height of the handlebars using the longitudinal holes.
Retighten the screws.

Depending on the model, the handlebar can additionally be adjusted using the upper or lower height settings on the housing console.

Setting the cutting height

The cutting height is adjusted using the skids.

Standard cutter bar

Steplessly adjustable cutting height up to approx. 6 cm
Loosen nuts.
Move the skids to the required height.
Retighten the nuts.
CAUTION! Both skids must be set to the same height!

ESM cutter bar

Mounting the skid holders as skids

The cutter bar cuts close to the ground.
The cutter bar cuts close to the ground, the curved side points downwards.

Mounting adjustable skids

Steplessly adjustable cutting height up to approx. 6 cm.
Mount the adjustable skid holders as shown in the illustration, the curved side points upwards.
Mount the skids as shown in the illustration.

Setting the cutting height

Loosen the nuts (2 nuts per skid).
Move the skids to the required height.
Retighten the nuts.

CAUTION! Both skids must be set to the same height!

Starting the engine

CAUTION!
- The clutch levers for the wheel and cutter drives must not be engaged when starting the engine!
- Set the throttle lever to the << START>> position.
- Press the primer button 3x with intervals of approx. 2 seconds.
- If the temperature is below 10° C, press the primer button 5x.
- Do not press the primer buttons when the engine is warm.
- Quickly pull out the starter cable and then allow it to slowly rewind.
- Falls der Motor nach 3 Zugversuchen nicht anspringt Punkt 10. und 11. wiederholen.
- As soon as the engine is running, set the throttle lever between the “start” and “stop” positions according to the desired engine speed.
- To start mowing, move the lever to the position – (full throttle).
- Wenn der Motor aus Kraftstoffmangel ausgegangen ist, Kraftstoff nachfüllen und den Motor nach Punkt 10. und 11. wieder starten.

Switching on the scythe attachment (11)

Swivel operator presence control (11-1) away. Push the clutch lever (11-2) fully down and hold it there.

DANGER!

The mowing mechanism is not allowed to start moving until the lever has moved through half of its travel, adjust the Bowden cable if necessary – (see: Adjusting Bowden cables).

Switching on travel drive (11)

Pull the clutch lever (11-3) against the handlebar and hold it there.

DANGER!

The travel drive is not allowed to start moving until the lever has moved through half of its travel, adjust the Bowden cables if necessary – (see: Adjusting Bowden cables).

Version with forward and reverse gears (12)

Clutch lever (12-1) = travel drive forwards
Clutch lever (12-2) = travel drive backwards

WARNING!

Do not pull both clutch levers at the same time!
- Travel drive forwards or Travel drive backwards Not both
Switching off travel drive (12)
- Release clutch lever (12-1) or (12-2).
Switching off scythe attachment (11)
- Release clutch lever (11-2).
Switching off engine (13)
- Move the throttle lever to the << STOP >> position.

SCYTHE ATTACHMENT

Clean the scythe attachment after each use, especially the guidance and sliding surfaces. Remove the mowing blade to do this.
Then oil all moving parts.
Only use biodegradable lubricants!

Removing the mowing blade on the scythe attachment Standard scythe attachment (14, 15)

Unscrew screws (14-1).
Remove part (14-2) forwards.
Note the installation direction when reinstalling the part – projection in the travel direction!
Loosen guides for mowing blades (15).
Unscrew hex nuts and unscrew threaded pins a little.
Pull out the mowing blade to the side.. Re-install in the reverse sequence.

Setting the cutting play (15)

Screw in the threaded pins by hand until you can feel resistance – then continue ½ a turn further.
Secure the threaded pins with a locknut.
It must still be possible to move the mowing blade freely by hand after the setting procedure.
Make a trial cut – screw the threaded pins slightly further in if the cutting performance is insufficient.

ESM scythe attachment (14)

Unscrew screws (14-1).
Remove part (14-2) forwards.
Note the installation direction when reinstalling part 2 – projection in travel direction!
For further information about the removal of the mowing blade as well as maintenance of the scythe attachment, see the accompanying document: ESM scythe attachment Universal SC

3 grease nipples (16-1, 17)

Grease driver (16) and drive for scythe attachment (17) every 8 working hours with commercially available multipurpose grease.

Regrinding and renewing blades

Regrind blunt blades using a suitable whetstone, maintaining the cutting angle (approx. 35 – 40°) – remove the mowing blade to do this.
Renew worn or damaged blades – customer service workshop.

Have a professional check:

after bumping against an obstacle
if the engine stops suddenly
if the cutter bar is bent
if the gears are damaged
if the belt is damaged.

TRAVEL TRANSMISSION (18)

Regularly check the oil level in the transmission

Position the machine horizontally.
Unscrew and remove the oil filler cap.
Oil level: Up to the bottom edge of the fill opening. Top up gear oil if necessary.
- Oil grade Gear oil SAE 80

Oil fill volume for machines with

Forwards gear only| approx. 0.25 l
Forwards and reverse gear| approx. 0.50 l

ENGINE

Oil change, air filter, spark plug

See the operating manual supplied by the engine manufacturer.
BOWDENZÜGE NACHSTELLEN Adjustment of the Bowden cables Cutter bar (without a lock nut)

Wheel drive

loosen the lock nut
use the adjusting screw to readjust
- Correct setting: The cutters and the wheel drive should only start to move after the lever has traveled half the distance.
Retighten the lock nuts.

MAINTENANCE AND CARE

Never lift or carry the machine when the engine is running. Switch off the engine, pull out the spark plug connector, and wait for all moving parts to come to a stop.

CAUTION!

Fire hazard!
- Do not store fuelled machine in buildings where the petrol fumes might come into contact with naked flames or sparks!
- Only drain the petrol tank outdoors.
- Do not spray the machine with water! Penetrating water (ignition system, carburetor…) can lead to malfunctions.

If the mower is tilted to the side, the requirements vary depending on the engine manufacturer:

BRIGGS & STRATTON
- The spark plug
- must point upwards!

See the instructions for use from the engine manufacturer!

Always wear protective gloves when working on the cutting tool.
Let the engine cool down before storing in enclosed rooms

Spare parts and accessories

Only use genuine spare parts and genuine accessories.
Subject to changes in design and configuration.

DISPOSAL

Do not dispose of worn-out machines or spent batteries (including rechargeable batteries) in domestic waste!
The packaging, machine and accessories are made from recyclable materials and must be disposed of accordingly.

TROUBLESHOOTING

CAUTION!

Risk of injury! Remove the spark plug connector before any maintenance or cleaning jobs!

Problem	Solution
Engine does not start	If the engine is cold: press the primer
	Top up fuel
	Move the throttle lever to the start position
	Push the spark plug connector onto the spark plug
	Check spark plug, re- new if necessary
	Clean air filter
Engine output	Call customer service
drops off	workshop, Resharpen /
	replace the blades
	Clean air filter
Inexact cut	Call customer service workshop Resharpen / re-place the blades

Readjust the cut- ting play
Problem| Solution
---|---
Cutter drive/wheel drive not functioning| Readjust Bowden cable

Call customer service workshop, V – belt de- fact

Please contact customer service in case of faults which are not mentioned in this table or that you cannot repair alone.

WARRANTY

We will address claims for any defects in materials and workmanship during the statutory period of limitation using repairs or replacements of our choice. The period of limitation is governed by the laws of the country in which the machine was purchased.

Our warranty applies only if:

The machine has been properly handled
The operating instructions have been adhered to
Original replacement parts have been used

The warranty is no longer in effect if:

Efforts have been made to repair the machine
Technical modifications have been made to the machine
The machine has not been used for its intended purpose

The warranty does not cover:

Damage to paintwork through normal use
Parts subject to wear as indicated in the replacement parts list with a box [xxx xxx (x)]
Internal combustion engines – separate warranty conditions of the respective engine manufacturer apply

The warranty period begins with the purchase by the first buyer. The warranty period begins on the date that appears on the original purchase receipt. In the event of a warranty claim, please your contact supplier or the nearest authorized customer service center with this warranty declaration and the purchase receipt in hand. This warranty does not affect the legal warranty claims by the purchaser against the seller.