AL-KO BM 870 Cordless Strip Mower Instruction Manual

BM 870 Cordless Strip Mower
Instruction Manual

BM 870 Cordless Strip Mower

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| BM 660| BM 870 III| BM 875 III| BM 5001 RII
---|---|---|---|---
Art. Nr.| 112885| 112871| 112872| 112870
i| L-KO Pro 140| B&S Series 450| B&S Series 625| B&S Series 625
ccm| 140 ccm| 148 ccm| 190 ccm| 190 ccm
w| 2,1 kW| 1,9 kW| 2,4 kW| 2,4 kW
| 3000 U/min| 3200 U/min| 3200 U/min| 3200 U/min
| 0 x 59 x 55 cm| 80 x 59 x 55 cm| 80 x 59 x 55 cm| 80 x 59 x 55 cm
| 49 kg| 50 kg| 52 kg| 60 kg
| 66 cm| 87 cm| 87 cm| 102 cm
| 4.00-6| 4.00-6| 4.00-6| 4.00-6
| 2,5 km/h| 2,5 km/h| 2,5 km/h| 2,5 km/h
| 2,5 km/h| 2,5 km/h| 2,5 km/h| km/h
| 12,98 m/s| 15,01 m/s| 16,07 m/s| 25,99 m/s
| 99 dB(A)| 97 dB(A)| 97 dB(A)| 104 dB(A)
| 88 dB(A)| 86 dB(A)| 85 dB(A)| 90 dB(A)

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 by 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 on grassy areas.

• It is essential to put the guard bar on the scy- the 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 exhausted and engine clean.

CAUTION! The 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 in accordance with 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.
Setting the handlebar height
Setting the handlebar height The height is usually adjusted to hip level.

1. Loosen the screws on the housing console.
2. Set the height of the handlebars using the longitudinal holes.
3. 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 appro6 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, and 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. Wiederhold. 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).
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: AdjustingBowden 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 backward
WARNING! Do not pull both clutch levers at the same time! Travel drive forwards or Travel drive backward Not both switching off travel drive (12)
Switching off the scythe attachment (11)
Release clutch lever (11-2).
Switching off the engine (13)
Move 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)

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

Setting the cutting play (15)

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

ESM scythe attachment (14)

1. Unscrew screws (14-1).
2. Remove part (14-2) forwards.
3. 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

Regularly check the oil level in the transmission

1. Position the machine horizontally.
2. Unscrew and remove the oil filler cap.
3. Oil level: Up to the bottom edge of the fill opening. Top up gear oil if necessary.

Oil fill volume for machines with
forwards gear only| approx. 0.25 l
Forwards and reverse| approx. 0.50 l

Oil change, air filter, spark plug
See the operating manual supplied by the engine manufacturer.
Adjustment of the Bowden cables
Cutter bar (without a lock nut)Wheel drive

1. loosen the lock nut

2. 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.

3. 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 the fuelled machines 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 old equipment, batteries or accumulators as household waste! Products, packaging, and accessories were made with recyclable materials and should be disposed of accordingly.

TROUBLESHOOTING

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

• Top up the fuel
•Move the throttle lever to the start position
• Push the spark plug
• connector onto the
• spark plug
• Check the spark plug,
• renew if necessary
• Cleanairfilter
Engine output drops off| • Call customer service workshop,
• Resharpen / replace the blades
•  Clean air filter
Cutter drive/wheel drive not functioning| • Readjust Bowden cable Call customer service
• workshop, V – belt dfect

WARRANTY

If any material or manufacturing defects are found during the statutory customer protection period, we will either repair or replace the equipment, whichever we consider the more appropriate. This statutory period may vary according to the legislation in force in the country where the equipment was purchased.
Our warranty is valid only if:

• The equipment has been used properly
• The operating instructions have been followed
• Genuine replacement parts have been used

The following are not covered by warranty:

• Paint damage due to normal wear
• Wear parts identified by a border [xxx (x)] on the spare parts list
• Combustion motors (these are covered by a separate warranty from the manufacturer concerned)

The warranty is no longer valid if:

• The equipment has been tampered with
• Technical modifications have been made
• The equipment was not used for its intended

The warranty period begins on the purchase by the first end user. Decisive is the date on the receipt. To make a claim under warranty, please take this statement of warranty and proof of purchase to the nearest authorized customer service center. This warranty does not affect the usual statutory rights of the customer relative to the seller.

AL-KO Geraete GmbH
Head Quarter
Ichenhauser Strafie 14
89359 Koetz
Germany Telefon: (+49)8221/203-0
Telefax: (+49)8221/203-138
www.al-ko.com

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