AL-KO BC 500 B 2-Stroke Brush Cutter 50 Owner’s Manual

BC 500 B 2-Stroke Brush Cutter 50
Owner’s Manual

BC 500 B 2-Stroke Brush Cutter 50

ABOUT THESE OPERATING INSTRUCTIONS

• The German version is the original operating instructions. All additional language versions are translations of the original operating instructions.
• Always safeguard these operating instructions so that they can be consulted if you need any information about the appliance.
• Only pass on the appliance to other persons together with these operating instructions.
• Comply with the safety and warning information in these operating instructions.

Comply with the safety and warning information in these operating instructions.

Symbols on the title page

| It is essential to read through these operating instructions carefully be- fore start-up. This is essential for safe working and trouble-free handling.
| Operating instructions
| Never operate the petrol-powered device in the vicinity of open flames or heat sources.

Legends and signal words

DANGER! Denotes an imminently dangerous situation that will result in fatal or serious injury if not avoided.
WARNING! Denotes a potentially dangerous situation that can result in fatal or serious injury if not avoided.
CAUTION! Denotes a potentially dangerous situation that can result in minor or moderate injury if not avoided.
IMPORTANT! Denotes a situation that can result in material damage if not avoided.
NOTE  Special instructions for ease of understanding and handling.

PRODUCT DESCRIPTION

Intended use

The following attachments can be operated with the Multitool MT 130 basic appliance:

• Trimmer and brush cutter attachment, for use as:
  • Brushcutter: For mowing of thicker herbaceous plants and similar vegetation
  • Lawn trimmer: For cutting soft grass and similar vegetation
• Pole-mounted pruner attachment CSA 130 MT (Art. No. 127635)*: For pruning established trees and other shrubs. Use from the ground.
• Hedge trimmer attachment HTA 130 MT (Art. No. 127636)*: For removing thin branches and new growth of hedges and bushes. Use from the ground.
• Shaft extension (Art. No. 127637)* for CSA 130 MT and HTA 130 MT

Can be purchased separately.
The basic appliance and the attachments are intended solely for use in outdoor, non-commercial applications: Any other use, as well as unauthorized conversions or add-ons, are regarded as contrary to the intended use and will result in invalidation of the warranty as well as loss of conformity (CE mark); the manufacturer will thus decline any responsibility for damage and/or injury suffered by the user or third parties.

Possible foreseeable misuse

The tool is designed neither for commercial use in public parks and sports facilities nor for use in farming and forestry.
Basic appliance:

• Do not use other than the approved attachments!

Trimmer and brush cutter attachment:

• Do not prune shrubs, hedges, trees or flowers.
• Do not lift the attachment off the ground during operation.
• Do not use the attachment with anything other than the OEM cutting tools (blade and cutting line)

Residual risks

Even during the correct use of the appliance, there is always a certain residual risk that cannot be excluded. Depending on the use, the following potential risks can be derived from the type and construction of the appliance:
Basic appliance:

• Damage to health resulting from hand-arm vibrations if the unit is used uninterrupted for a prolonged period of time or is not properly maintained
• Risk of burns from contact with hot parts
• Risk of fires

Trimmer and brush cutter attachment:

• Throwing out of cut material and inhaling cut material particles
• Lacerations from reaching into the rotating cutting line
• Risk of injury to the feet due to contact with the running cutting tool.

Safety and protective devices

Safety signs

WARNING!  Risk of injury. Defective and disabled safety and protective devices can result in serious injury.

• Have any defective safety and protective devices been repaired?
• Never disable safety and protective devices.

Emergency stop
In an emergency, switch off the engine with the ON/OFF switch. Release the throttle lever.

Guard plate
The guard plate protects the operator from contact with the rotating cutting line and objects that are thrown out.

Loop handle with spacer
The loop handle ensures that the operator’s feet do not get into the vicinity of the rotating cutting line or blade.

Quick release mechanism
There is a quick-release mechanism on the double-carrying belt for emergencies so that you can detach yourself from the device and quickly leave the workplace.

Symbols on the appliance

| Pay special attention when handling this appliance!
| Read the operating manual before starting operation!
| Wear a helmet, ear defenders and eye protection!
| Wear sturdy footwear!
| Wear protective gloves!
| Risk of objects being thrown out!
| The distance between the attachment and persons not involved in the work must be at least 15 m in the entire area around the user.
**| Danger during tool run-down.
| On no account may the brushcutter be operated with a saw blade!
| Hot surface. Do not touch!
**| Risk of fires! Pay special attention when handling petrol!

Operating signs

| Using the choke knob: Turn the choke knob anticlockwise to close the choke. When the choke closes, turn the choke clockwise to open the choke again.

Product overview (01)

BC 330 L, BC 400 L (07)

Approved cutting tools

Only the OEM cutting tools listed here may be used:

• Fast and Easy Semipro spool head 115 mm: Article No.127619
• Fast and Easy Profit spool head 130 mm: Article No. 127620*
• 3-toothed blade: Article No. 112906
• 2-toothed mulching blade: Article No. 127641

Not included in the scope of supply; can be purchased separately.

DANGER!  Danger from cutting tools! Non-approved cutting tools (e.g. multi-part metallic cutting tools with revolving chains and blades) and damaged cutting tools (e.g. cracks, spalling) can result in very serious injuries or even death. Use only the approved OEM cutting tools. Replace damaged cutting tools immediately.
Operation of non-approved cutting tools with the basic appliance does not constitute an intended use.

Scope of supply

The items listed here are included in the standard scope of supply. Check that all items are present:

• Basic appliance
• Trimmer and brush cutter attachment
• Loop handle incl.:
  • Mating clamp
  • Rubber sleeve
  • 4 Allen screws
  • 4 nuts
• Guard plate incl.:
  • Guard bar with integrated line cutter
  • 4 Phillips screws M5x16
  • 4 nuts
• Fast & Easy Semipro spool head, incl. spool
• 3-toothed blade
• 2-toothed mulching blade Single carrying strap (for pole-mounted pruner and hedge trimmer attachment)
• Double carrying belt
• Toolset:
  • Combined spark plug wrench with Phillips screwdriver
  • Double open-jaw wrench
  • 3 Allen keys
  • 2 cotter pins for securing the blade or mulching blade (1 spare pin)
  • Fuel mixing bottle

SAFETY INSTRUCTIONS

CAUTION!  Danger of hearing damage. The appliance is extremely loud during operation. This can cause hearing damage to the operator and to persons and animals in the vicinity. Only work when wearing hearing protection. Maintain a safe distance to persons or animals, or switch off the appliance if persons or animals approach.
NOTE  It is essential to familiarize yourself with the operation of the appliance. In particular, learn how the appliance can be immediately stopped.

Operator

• Young people under 16 years of age and people who do not know the operating instructions are not allowed to use the tool. Heed any country-specific safety regulations concerning the minimum age of the user.
• If you are working with such an appliance for the first time: Have the salesperson or another expert explain the operation of the appliance. Or attend a course.
• To operate the appliance, you must be rested and in good physical and mental health. If you must not exert yourself for health reasons, ask your doctor whether it is possible to work with this appliance
• . Do not operate the appliance if you are under the influence of alcohol, drugs or medication.

Personal protective equipment

• Wear clothing and protective equipment in accordance with the regulations in order to avoid injuries to the head and limbs, as well as to avoid hearing impairment.
• The clothing must be appropriate (tightly fitting) and must not restrict movements.
• The personal protective equipment comprises:
  • Hearing protection (e.g. ear defenders, especially when working for than 2.5 hours a day)
  • Protective glasses
  • Sturdy working gloves, vibration and shock absorbent
  • Safety boots with high-grip sole and steel toe caps

Work area safety

• Only operate the appliance out of doors and never in enclosed spaces.
• Only work during daylight or under very bright artificial light.
• Before working, Remove any dangerous products and objects from the working area, e.g. branches, broken glass, sharp-edged objects, pieces of metal, stones, before starting work.
• Make sure you are standing safely. Avoid wet, slippery ground.
• When working, move cautiously and slowly. Do not run. Watch out for obstacles.

Appliance safety

Only use the appliance under the following conditions:

• The appliance is not dirty, especially not with petrol and oil.
• The appliance show no signs of damage, especially the protective grille.
• All controls function properly.
• All accessory parts intended for the respective operating mode are fitted on the appliance.
• Do not force the power tool. It is intended for light work in the private sector. Overload can lead to damage to the appliance.
• Never block the vacuum and ventilation grille during operation in order to avoid any overheating of the engine.
• Immediately switch off the appliance if the engine begins to vibrate abnormally or strongly. There is an appliance fault in this case.
• Never operate the appliance with worn or defective parts. Always replace defective parts with original spare parts from the manufacturer. If the appliance is operated with worn or defective parts, guarantee claims against the manufacturer are excluded.

Safety of persons, animals and property

• Use the appliance only for the purposes for which it is intended. Any non-intended use can lead to injury and property damage.
• Switch on the appliance only when there are no persons or animals in the working area.
• Maintain a safe distance from persons or animals, or switch off the appliance if persons or animals approach.
• Never direct the exhaust gas jet of the engine toward persons and animals or towards inflammable products and objects.
• Do not reach into the vacuum and vent grilles when the engine is running. Injuries can occur due to rotating appliance parts.
• Always switch off the appliance when not in use, e.g. when changing the work area, during service and maintenance, and when filling with the petrol/oil mixture.
• Immediately switch off the appliance if there is an accident in order to avoid further injuries and/or property damage.
• Never operate the appliance with worn or defective parts. Worn or defective appliance parts can cause serious injuries.
• Keep the appliance out of the reach of children.

Vibration load

• Danger due to vibration
  The actual vibrations emitted during the use of the appliance may deviate from those stated by the manufacturer. Observe the following

  • influencing factors before or during use:
  • Is the appliance being used as intended?
  • Is the material being cut or processed in the proper manner?
  • Is the appliance in a proper condition of use?
  • Is the cutting tool properly sharpened or is the correct cutting tool installed?
  • Are the handle grips and any optional vibration grips mounted, and are they firmly attached to the appliance?

• Only operate the tool at the combustion engine speed required for the respective work. Avoid using the maximum speed in order to reduce noise and vibrations.

• The noise and vibrations of the tool may increase due to improper use and maintenance. This leads to health damage. In this case, immediately switch off the tool and have it repaired by an authorized service workshop.

• The degree of stress due to vibration depends on the work to be performed or on the use of the tool. Estimate the stress and plan appropriate work breaks. This considerably reduces stress due to vibration over the entire working time.

• Extensive use of the tool exposes the operator to vibrations, which can lead to circulatory issues (“white fingers”). To avoid this risk, wear gloves and keep your hands warm. If any symptoms of “white fingers” occur, immediately consult a physician.

• These symptoms include:

  • Numbness, loss of feeling, tingling, itching, pain, reduced muscular strength, and changes in the color or condition of the skin.
  • Normally these conditions affect the fingers, hands or pulse.
  • The risk increases at low temperatures (below approx. 10°C).

• Take long breaks during your working day so you can recover from the noise and the vibrations. Plan your work in such a way that the use of appliances that generate strong vibrations is spread over several days.

• If you notice an unpleasant sensation or discoloration of the skin on your hands when using the tool, stop working immediately. Take sufficient work breaks. Without sufficient breaks, a hand/arm vibration syndrome can occur.

• Minimize your risk of being exposed to vibrations. Maintain the tool according to the instructions in the operating instructions.

• If the tool is used frequently, contact your dealer to purchase anti-vibration accessories (e.g. handles).

• Define how the vibration load can be limited in a work plan.

Handling of petrol and oil

• Risk of explosion and fire: An escaping petrol/air mixture can cause an explosive atmosphere. Deflagration, explosion and fire can lead to serious and even fatal injuries if fuel is not handled properly. Observe the following:
  • Do not smoke when dealing with petrol.
  • Only handle petrol out of doors and never in enclosed spaces.
  • It is essential to heed the code of conduct stated below.
• Only transport and store petrol and oil in containers approved for that purpose. Ensure that children have no access to stored petrol and oil.
• In order to avoid ground contamination (environmental protection) when filling, ensure that no petrol or oil enters the soil. Use a funnel for filling.
• Never fill the appliance in enclosed spaces.
• Petrol vapors may gather at ground level, and thereby result in a deflagration or even an explosion.
• Immediately wipe any spilled petrol off the appliance and the ground.
• Allow textiles used to wipe off petrol to dry in a well-ventilated place before disposing of them.
• Otherwise, sudden self-ignition may occur. If petrol has been spilled, petrol vapors occur. For this reason, do not start the engine at the same location and move it at least 3 m away. Avoid skin contact with mineral oil products.
• Do not inhale petrol vapors. When filling, always wear protective gloves.
• Change and clean protective clothing regularly. Ensure that your clothing does not come into contact with petrol.
• If petrol has got onto your clothing, change it immediately.
• Never fill the fuel tank while the engine is running or hot.

ASSEMBLY

WARNING! Danger if the assembly is not carried out completely! The use of an incompletely assembled device can result in serious injury. Only use the device when it is fully assembled! Before switching on, check that all safety and protective devices are in place and functioning correctly!
WARNING!  Risk of injury due to detaching appliance parts. Appliance parts detaching during operation can lead to serious injury. Attach the cutting tools so that they cannot
come loose during operation.

Installing loop handle (02)

1. Place rubber sleeve (02/1) over shaft (02/2).
2. Place the loop handle (02/3) from above and the mating clamp (02/4) from below around the rubber sleeve.
3. Insert an Allen screw (02/5) from above and screw on a nut (02/6) from below, then tighten slightly. Repeat this step with the other Allen screws and nuts.
4. Tighten all Allen screws securely.

Installing guard plates (03, 04)

1. Insert the 4 Phillips screws M5x16 (03/1) through the holes in the guard plate (03/2).
2. Screw the guard plate securely to the guard plate mounting (03/3).
3. Attach guard bar (04/1) with integrated line cutter (04/2) to guard plate (04/3), then screw in plastic securing screw (04/4).

Mounting the spool head (05)

1. Place the driver plate (05/1) onto the guide pin (05/2) of the angle-drive gearbox.
2. To lock, insert the Allen key (05/3) into the hole of the driver plate.
3. Screw the spool head (05/4) onto the angle-drive gearbox and tighten.
   Note: Left-hand thread! Tighten the spool in the anti-clockwise direction!

Installing blade or mulching blade (06)

WARNING! The danger of serious injury! A worn serrated washer (06/5) can allow the blade or mulching blade to come loose during operation and cause serious injuries.

• Be sure to insert the cotter pin (06/8) supplied.

1. Set down the brushcutter so that the cutting head is pointing upwards.
2. Place the driver plate (06/1) onto the guide pin (06/2) of the angle-drive gearbox.
3. Place the blade or mulching blade (06/3) onto the driver plate (06/1) so that the hole in the blade/mulching blade is exactly on the guide circle of the driver plate.
4. Place flange (06/4) onto the blade or mulching blade (06/3) so that the flat side is pointing towards the blade/mulching blade.
5. Push on the serrated washer (06/5).
6. Screw the fastening nut (06/6) onto the guide pin (06/2). To do this, insert the Allen key (06/7) into the holes provided and tighten it with the spark plug spanner. Note: Left-hand thread!
7. Secure the fastening nut (06/6) with the split pin (06/8).

START-UP

NOTE Inspect the appliance for damage every day before starting work if it is dropped or is subjected to other impacts. Have any damage been repaired before putting the appliance into operation?

Attaching and removing the attachment (07, 08)

The attachments are connected to the split shaft.

Fitting the attachment

1. Loosen the locknut (07/1) and pull the cotter pin (07/2) out slightly (07/a).
2. Push (07/b) split shaft (07/3) completely into split shaft attachment (07/4).
3. Insert the cotter pin again (07/c) and tighten the locknut.

Removing the attachment

1. Loosen the locknut (08/1) and pull the cotter pin (08/2) out slightly (08/a).
2. Pull (08/b) split shaft (08/3) out of split shaft attachment (08/4).
3. Insert the cotter pin again (08/c).

Adjusting the carrying belt

1. Put on the carrying belt (see chapter 6.1 “Putting on the double carrying belt (10)”, page 32).
2. Hook the snap hook of the carrying belt into the eye (01/14) on the appliance.
3. Carry out several horizontal sweeping movements above the ground without starting the engine. The cutting head must always move above the floor at the same height.
4. If not: Adjust the length of the carrying belt and repeat the sweeping movements.

Preparing and pouring in the petrol/oil mixture (09)

IMPORTANT! The danger of engine damage. Pure petrol will result in damage and complete failure of the engine. Guarantee claims against the manufacturer are excluded in this case. Always operate the engine using the specified petrol/oil mixture ratio.
Preparing the petrol/oil mixture The 2-stroke engine requires Fresh unleaded petrol with at least 90 octanes. Petrol stored for longer than 2 months will lead to deposits and malfunctions of the engine. High-quality synthetic oil for 2-stroke engines Prepare a petrol/oil mixture in a ratio of 50:1 using these two constituents:

1. Pour the petrol and 2-stroke oil into a fuel mixing bottle (quantities, see table, depending on the size of the fuel mixing bottle).
2. Close the fuel mixing bottle and shake vigorously several times so that the petrol and oil can mix thoroughly.

Pouring in the petrol/oil mixture (09)

1. Place the appliance on a level, horizontal surface. The cap (09/1) of the fuel tank must be facing upwards.
2. Wipe the fuel tank cap (09/1), the fuel tank (09/2) and the surrounding appliance parts clean so that no dirt can get into the fuel tank when the petrol/oil mixture is poured in.
3. Open the fuel tank cap slowly so the pressurized petrol/air mixture can slowly escape from the fuel tank into the atmosphere. Leave the cap hanging on the fuel tank.
4. Insert a funnel (09/3) into the filler neck (09/4) of the fuel tank.
5. Pour the prepared petrol/oil mixture from the fuel mixing bottle (09/5) into the fuel tank up to the lower edge of the filler neck, but not higher.
6. Remove the funnel and screw on the cap finger-tight.
7. Wipe any spilled petrol/oil mixture off the appliance and the surface.

OPERATION

WARNING!  Risk of injury due to detaching appliance parts. Appliance parts detaching during operation can lead to serious injury.

• Before turning the appliance on, check that all the parts of the appliance are firmly tightened.
• Attach cutting tools so that they cannot detach during operation.

Putting on the double carrying belt (10)

Follow figure (10) to put on the double carrying belt.

• Always use a carrying belt during work.
• Only attach the appliance after the engine has been started and is running in idle.

Starting/stopping the engine

Information on engine operation

Before starting

• Place the brushcutter level and free of obstacles on the ground. The cutting tool must not be touching any objects or the ground.
  When starting

• Do not stand on the shaft to avoid damage to the shaft and/or the angle-drive gearbox inside the shaft.

• Make sure you are standing securely and hold the brushcutter firmly at the housing flange.

Positions of the choke lever

Cold start (choke lever in CHOKE position)
If the engine is cold, i.e. if it has not been in use for more than 5 minutes, a “cold start” is carried out.
Warm start (choke lever in RUN position)
If the engine is still warm from use, i.e. shortly after it was switched off, a “warm start” is carried out. The choke is not used in this case.

Carry out a cold start/warm start (11, 12)

NOTE  With the “Ready to Start” function, the ON/OFF switch is always in the ON position. Push the ON/OFF switch to the OFF position to stop the appliance. When the switch is pressed, it returns automatically to the ON position.

NOTE  Automatic resetting of the choke lever. In the event of an immediate start of the engine, the choke lever returns automatically to the RUN position when the throttle lever is pressed.

Cold start

1. Move the choke lever (11/1) to the CHOKE position (11/a).
2. Briefly and firmly press the primer button (11/2) approx. 7 to 10 times.
3. Starting the engine:
   • Press the appliance firmly onto the ground with one hand.
   • With the other hand, pull the starter handle (11/3), first carefully and slowly until resistance is felt, and then firmly and quickly upwards until resistance is felt again (approx. 1 arms length).
   • Allow the starter rope to coil up again, but without releasing the starter handle.
   • Repeat the previous steps several times until the engine starts.
4. Allow the engine to warm up for a few minutes.
5. Move the choke lever to the RUN position (11/b).

Hot start
If the engine is still warm from use, i.e. shortly after it was switched off, a “warm start” is carried out. The choke is not used in this case.

1. (Optional) Move choke lever (11/1) to the CHOKE position and then immediately back to the RUN position. The automatic half-throttle is now set.
   • Press the appliance firmly onto the ground with one hand.
   • With the other hand, pull the starter handle (11/3), first carefully and slowly until resistance is felt, and then firmly and quickly upwards until resistance is felt again (approx. 1 arm length).
   • Allow the starter rope to coil up again, but without releasing the starter handle. Repeat the previous steps several times until the engine starts and runs smoothly.

The engine is running
The engine runs at idle speed.
Note  Press the throttle lever (12/1) if the engine no longer runs smoothly. The engine speed can be fixed with locking button (12/3).

Stopping the engine

1. Release the throttle lever (12/1) and let the engine run at idling speed.
2. Move ON/OFF switch (12/2) to the STOP position and hold there for a few seconds. Working behavior and working technique
3. Wait until the cutting tool has come to a complete standstill.

Using the quick-release mechanism (17)

1. Pull the orange strap (17/1) vigorously (17/a).

The device slips out of the holder together with the snap hook (17/2) and falls to the ground.

WORKING BEHAVIOUR AND WORKING TECHNIQUE

Working with spool head

Trimming

• Angle the machine slightly forwards and move it from left to right at an appropriate and even speed.
• The best cutting results are achieved when cutting dry grass.
• Do not move the cutting line directly along walls and stone slabs, since this will cause the cutting line to wear too quickly.
• Cut long grass and relatively dense vegetation in several passes to prevent the spool from blocking.
• Adapt the engine speed and the depth of cut to the working conditions. If the engine in not running fast enough, it is possible for undergrowth to get snagged or caught in the cutting tool.
• If grass, branches or other objects get caught in the cutting tool or the machine vibrates unusually, switch the engine off immediately and check the machine.
• A blocked angle-drive gearbox can cause damage to the clutch.
• The cutting line continues to turn after the trimmer attachment has been switched off.
• Consequently, wait until the line has stopped before you switch the machine back on again. Change the cutting line when the spool is empty.

Prolonging the cutting line during operation (13)
The cutting line shortens during operation and frays out.

1. Allow the engine to run at full speed.
2. Tap (13/a) the spool head (13/1) on the ground from time to time. This unwinds a piece of new cutting line from the spool and cuts off the used end of the cutting line (13/2).

Working with blade

Avoiding kickback

• Make sure you have a secure footing.
• Keep your feet apart at a comfortable distance, and always be prepared for the possibility of kickback.
• Before starting cutting, allow the blade to reach its full working speed.

Mowing

• Angle the appliance slightly forwards and move it from left to right at an appropriate and even speed.
• The cut material then drops onto the area already cut.
• Cut longer grass and denser vegetation in several passes. First shorten the upper part of the material to be cut by moving the appliance to the right. Then move the appliance to the left and cut the lower part.
• Cut in strips when working on slopes. Mow one strip parallel to the slope, then walk back along the mown area and mow the next strip.
• Adapt the engine speed and the depth of cut to the working conditions. If the engine speed is too low, undergrowth can catch up or jam in the cutting tool.
• If grass, branches or other objects get caught in the cutting tool or the appliance vibrates unusually, switch the engine off immediately and check the appliance.
• A blocked angle-drive gearbox can cause damage to the clutch.
• Never remove trapped cut material when the blade is still running. Wait until the blade has come to a standstill.
• If the blade is blunt, broken or bent, replace it with a genuine spare part.

MAINTENANCE AND CARE

DANGER!  Risk of injury or death due to improper maintenance. Maintenance work carried out by unqualified persons and the use of non-approved spare parts can result in serious injuries and even death during operation of the appliance. Do not remove or deactivate any safety installations. Use only approved OEM spare parts. Ensure through regular and proper maintenance that the appliance is in a clean and functional condition at all times.

CAUTION! Risk of injury. Sharp-edged and moving appliance parts can lead to injury. Always wear protective gloves during maintenance, care and cleaning work!

Proper maintenance and care is necessary to ensure the functionality and safety of the appliance. Note the following points: Only carry out maintenance and care work if
you have the necessary knowledge and tools. Wait until the engine has cooled down completely. Only replace any worn or defective appliance parts with original spare parts from the manufacturer. Do not carry out any maintenance and care work that is not described in these instructions for use.

Instruct an authorize service workshop to do this work. Any infringements will invalidate the manufacturer’s warranty.
The intervals for the maintenance and care work mentioned here can be found in the maintenance schedule (Maintenance schedule).
Use only the approved cutting tools (Approved cutting tools)!

Replacing the cutting line (14)

1. Turn rotary knob (14/1) until the arrows (14/2, 14/3) are aligned.
2. Push the cutting line into opening (14/4) until the line is the same length on both sides of the spool head.
3. Wind cutting line into spool head: Turn rotary knob (14/1) in the direction of arrows (14/5) until the cutting line protrudes by approx. 10 cm from the spool head on both sides.

Cleaning/replacing the air filter (15)

IMPORTANT!  Danger of engine damage. Operation of the engine without air filter will result in serious engine damage! Never operate the appliance without air filter. Clean the air filter at regular intervals. Replace a damaged air filter.

1. Dismantling the air filter: Loosen the air filter screw (15/1) until the air filter housing cover (15/2) is loose. Pull off the air filter housing cover. Pull the filter sponge (15/3) from the frame (15/4).
2. Cleaning the filter sponge (15/3): Squeeze out the filter sponge, then wash out with soap and water. Do not use petrol or other solvents! Allow the filter sponge to dry thoroughly until it contains no more water. A wet filter can make the engine difficult to start.
3. Clean the air filter housing thoroughly using a cloth.
4. Replacing the filter sponge (15/3): Replace the filter sponge if it is no longer elastic or falls apart.
5. Fitting the air filter: Push the filter sponge (15/3) onto the frame (15/4). Push on the air filter housing cover (15/2) and hold in place. Screw in the air filter screw (15/1) until the air filter housing cover is tight.

Checking/replacing the fuel filter

The felt-like fuel filter is located in the fuel tank and is plugged onto the vacuum head. If the fuel filter becomes hard, dirty or clogged, less petrol flows to the engine. In this case, the fuel filter must be replaced.
It is recommended that an authorized service workshop carries out this work.

Servicing the spark plug (16)

1. Removing the spark plug: Remove the spark plug connector (16/1). Unscrew the spark plug (16/3) using a spark plug spanner (16/2).

2. Inspecting the spark plug:
   If the spark plug is pale brown: The engine is working correctly and the spark plug is in order. If necessary: Carefully brush the spark plug clean using a fine wire brush (16/4). If the spark plug is sooty, oily, encrusted, melted or the contacts bridged: The spark plug is defective. Replace the spark plug with a new spark plug. Use the specified spark plug type (see technical data). If, after a short period of operation, the spark plug is defective again, the engine and the carburetor settings must be checked by an authorized service workshop.

3. Checking the electrode gap:
   Use a feeler gauge (16/5) to check that the electrode gap (16/6) is 0.6 ­ 0.7 mm. If not, carefully tap the electrodes closer together or carefully bend them apart.

4. When the prescribed interval is reached or if the spark plug is defective:
   Replace the spark plug with a new spark plug. Use the specified spark plug type (see technical data).

5. Installing the spark plug: Ensure the spark plug seal ring (16/7) is on the spark plug. Screw in the spark plug again by hand and tighten using the spark plug spanner (torque 12 ­ 15 Nm). Push on the spark plug connector again firmly.

Idling speed setting

The cutting tool is not allowed to move when the engine is idling. If the cutting tool does move when the engine is idling, you must consult your dealer in order to achieve the correct engine setting.

Maintenance schedule

The following jobs are allowed to be carried out by the user independently. All other maintenance, service and repair work must be carried out in an authorized service workshop.
NOTE:  Shorter maintenance intervals than those stated in this table may be necessary in case of severe loading and high temperatures.

Activity| Once after 5 operating hours| Before each use| Every week| Every 50

operating hours

| Every 100 operating hours| as required| Before the
working season| Every 5

years

---|---|---|---|---|---|---|---|---
Carburetor|
check idle speed| | X| | | | | |
Air filter|
Clean| | X| | | | | |
Replace| | | | | | X| |
Spark plug|
check electrode gap, adjust if necessary| | | | X| | | |
Replace| | | | | X| X| |
Cooling air inlet|
Clean| | | X| | | X| X|
Silencer|
Visual inspection for condition| | X| | | | | |
Fuel tank|
Clean| | | | X| | | X|
Fuel filter|
Replace| | | | | | | | X
Control elements| |
ON/OFF switch, locking button, throttle lever, starter rope| | X| | | | | |
All accessible screws (except set screws)
Retighten| X| | | | | X| X|
Complete appliance|
Visual inspection for condition| | X| | | | | |
Clean| | | X| | | X| X|

HELP IN CASE OF MALFUNCTIONS

CAUTION!  Risk of injury. Sharp-edged and moving appliance parts can lead to injury.

• Always wear protective gloves during maintenance, care and cleaning work!
• Switch the appliance off.

NOTE  For malfunctions that are not listed in this table or that you cannot resolve yourself, please contact our customer service.

chapter 8.4
| The air filter is clogged.| see chapter 8.2
| The fuel filter is worn.| Checking/replacing fuel filter (16)
| The carburetor settings are not correct.| Contact an authorized service workshop.
| The choke lever is in the CHOKE position.| Move the choke lever to RUN.
Engine starts, but the engine output is low.| The choke lever is in the CHOKE position.| Move the choke lever to RUN.
---|---|---
Air filter is clogged.| see chapter 8.2
| The fuel filter is worn.| Checking/replacing fuel filter (16)
| The carburetor settings are not correct.| Contact an authorized service workshop.
The engine not running smoothly and the engine speed not increasing when the throttle is applied.| A spark plug is dirty, or defective or the electrode gap is not right.| see chapter 8.4
The carburetor settings are not correct.| Contact an authorized service workshop.
Engine exhaust smoking heavily appears blue.| The amount of oil in the petrol/oil mixture is too high.| Pour in the petrol/oil mixture with the correct mixture ratio.Mixing and pouring in the petrol/oil mixture
| The carburetor settings are not correct.| Contact an authorized service workshop.
Engine starts abnormally and vibrates strongly.| Appliance/engine parts have come loose and/or are damaged.| 1. Stop the motor.
2. Inspect the appliance for damage.
3. Check the spark plug, see chapter 8.4 “Servicing the spark plug (16)”, page 34.
4. Contact an authorized service workshop.

TRANSPORT

Transporting the appliance between two working areas

1. Switch off the engine.
2. Put the transport protection onto the blade.
3. Hold the brush cutter firmly at the engine block and the handle.
4. Walk carefully to the next working area. Take care not to endanger persons or animals.

Transporting the appliance in a vehicle

1. If possible: Empty the fuel tank by allowing the engine to run.
2. Switch off the engine.
3. Put the transport protection onto the blade.
4. Ensure that the appliance cannot tip over while driving to prevent the petrol/oil mixture from running out: Place the appliance on the floor of the vehicle so that the fuel tank cap is facing upwards. The fuel tank must be securely closed. Fix the appliance to the floor of the vehicle.

STORAGE

If the appliance is not going to be used for more than 2 ­ 3 months, the following work is necessary to avoid any damage:

1. Empty the fuel tank:
   Allow the engine to run until it stops itself. Then there is no longer any petrol/oil mixture in the fuel tank or carburetor and deposits cannot form.

2. Clean the appliance:
   Wipe the entire appliance and accessory parts with a cleaning rag. Do not use petrol or other solvents.
   Remove any dirt from all appliance openings (including cooling openings for the engine).

3. Oil the cylinder:
   Allow the appliance to cool down completely. Remove the spark plug connector and unscrew the spark plug. Drop a little oil into the spark plug opening. Slowly pull on the starter handle so the piston moves and the oil is distributed in the cylinder. Screw in the spark plug again tightly and push on the spark plug connector.

4. Put the transport protection onto the blade.

5. Store the appliance in a cool, dry place.

CAUTION!  Risk of injury. If the appliance is accessible to children and unauthorized persons during storage, this can result in injury. Store the appliance out of the reach of children and unauthorized persons.

DISPOSAL

• Petrol and motor oil do not belong in household waste or the public sewer system but should be collected and disposed of separately.
• Before disposing of the device you must empty the fuel tank and the engine oil tank!
• Packaging, equipment, and accessories are made from recyclable materials and must be disposed of accordingly.

ADDITIONAL INFORMATION FOR CO2 VALUES

According to Article 43 (4) of Directive (EU) 2016/1628, we are obliged to provide the CO2 value determined during the course of the EU type-approval procedure.
The CO2 values of the engines with EU-type approval can be found here https://www.al-ko.com/shop/media/al-ko-engines/ co2.pdf.
This CO2 measurement is the result of testing of a (master) engine representative of the engine type or engine family in a fixed test cycle under laboratory conditions and does not constitute an express or implied warranty of the performance of a particular engine.

AFTER-SALES/SERVICE

In the event of questions of warranty, repair or spare parts, please contact your nearest ALKO Service Centre. These can be found on the Internet at: www .al-ko.com/service-contacts

GUARANTEE

We will resolve any material or manufacturing faults on the appliance during the legal warranty period for claims relating to faults, in accordance with our choice either to repair or replace. The legal warranty period is determined by the legislation of the country in which the appliance was purchased.

Our warranty promise applies only if:

• These operating instructions are heeded
• The appliance is handled correctly
• Original spare parts have been used

The warranty becomes void in the case of:

• Unauthorized repair attempts
• Unauthorized technical modifications
• Non-intended use

The guarantee excludes:

• Paint damage that can be attributed to normal wear and tear
• Wear parts that are marked with a frame xxxxxx (x) on the spare parts card
• Internal combustion engines (these are covered by the guarantee provisions of the corresponding engine manufacturers)

The guarantee period commences with a purchase by the first end user. The date on the proof of purchase is decisive. In the event of a guarantee claim, please take this guarantee declaration and the original proof of purchase, and contact your dealer or the nearest authorized customer service Centre. This statement does not affect the purchaser’s statutory claims for defects against the vendor.

References

• Startseite - AL-KO Unternehmensgruppe
• Servicestellen international | AL-KO Gardentech

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