GKE 35 BCE - Chain saw BOSCH - Free user manual and instructions

USER MANUAL GKE 35 BCE BOSCH

GKE 35 BCE GKE 40 BCE PROFESSIONAL

BOSCH

Bedienungsanleitung Operating instructions Instructions d'emploi Instrucciones de servicio Manual de instruções Istruzioni d'uso Gebruiksaanwijzing Betjeningsvejledning Bruksanvisning Brukerveiledningen Käyttöohje Οδηγία χειρισμού Kullanım kılavuzu

Illustration of a Bosch electric chain with visible blade and handle (no text or symbols)

Black and white striped flag pattern with no text or symbols

Robert Bosch GmbH D-70745 Leinfelden Echterdingen 0 600 xxx xxx xxx V ~ xx Hz x A xxxx W xxx mm xxxxxxx 820 Made in Ge 20xx nany

16

1 2 3 4 5 6 7 BOSCH 15 14 13 12 BOSCH 11 10 9 8

GKE 35 BCE

GKE 40 BCE

PROFESSIONAL

A

21 22 21 20 19 18 BOSCH 17 11 23

B 24 4 2 3 26 25

C BOSCH 13 14 3-4 mm

D 1 5 27 1

4 • 1 609 929 J52 • 06.03

Illustration of a person using a cutting tool on a wooden beam, with no visible text or symbols

F BOSCH

Illustration of two workers installing a large blade structure, one using a ladder and the other holding a tool (no text or symbols)

H Y Z Z Kg Y

50 mm X Y Z W 50 mm ① ① ② ②

K 28

5 • 1 609 929 J52 • 06.03

Sicherheitshinweise

Mechanical assembly diagram showing a chain being cut with a hand, no text or symbols present

10 3-4 mm

Senior Vice President

Engineering

Dr. Eckerhard Strötgen

Head of Product

Certification

i.v. Nuoyen

Robert Bosch GmbH, Power Tools Division

WARNING! Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.

Save all warnings and instructions for future reference.

The term “power tool” in the warnings refers to your mains operated (corded) power tool.

It is recommended that the first time user should have practical instruction in the use of the chainsaw and the protective equipment from an experienced operator and that the initial practice should be cutting logs on a saw horse or cradle.

Explanation of symbols:

Read instruction manual.

Do not expose to rain.

Remove the plug from the socket or mains immediately before carrying out any adjustments, servicing or maintenance or if the cable is damaged or cut.

Obtain and wear eye and ear protection at all times while operating the power tool.

The kick back brake and the run down brake stop the chain saw within short time.

Work area

• Keep work area clean and well lit. Cluttered and dark areas invite accidents.
  ■ Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes.
• Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.
  Children and juveniles, except above age 16, under supervision and for educational purposes, must not operate the chain saw, nor should persons unfamiliar with the saw or its handling (when borrowing). Ensure operation manual is with the saw. Persons unfit or tired must not operate the chain saw.

Electrical safety

■ Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will reduce risk of electric shock.
■ Avoid body contact with earthed or grounded surfaces, such as pipes, radiators, ranges and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded.
■ Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
■ Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of electric shock.
■ When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock.

Personal safety

■ Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while operating power tools may result in serious personal injury.
■ Use safety equipment. Always wear eye protection. Safety equipment such as dust masks, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.
■ Avoid accidental starting. Ensure the switch is in the off position before plugging in. Carrying power tools with your finger on the switch or plugging in power tools that have the switch on invites accidents.
■ Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to a rotating part of the power tool may result in personal injury.
■ Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.
■ Dress properly. Do not wear loose clothing or jewellery. Keep your hair, clothing and gloves away from moving parts. Loose clothes, jewellery or long hair can be caught in moving parts.
If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used. Use of these devices can reduce dust related hazards.

Power tool use and care

■ Do not force the power tool. Use the correct power tool for your application. The correct power tool will do the job better and safer at the rate for which it was designed.
■ Do not use the power tool if the switch does not turn it on and off. Any power tool that cannot be controlled with the switch is dangerous and must be repaired.
■ Disconnect the plug from the power source before making any adjustments, changing accessories, or storing power tools. Such preventive safety measures reduce the risk of starting the power tool accidentally.
■ Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool. Power tools are dangerous in the hands of untrained users.
- Maintain power tools. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the power tool's operation. If damaged, have the power tool repaired before use. Many accidents are caused by poorly maintained power tools.
- Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
■ Use the power tool, accessories and tool bits etc., in accordance with these instructions and in the manner intended for the particular type of power tool, taking into account the working conditions and the work to be performed. Use of the power tool for operations different from those intended could result in a hazardous situation.

Service

■ Have your power tool serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the power tool is maintained.

Chain Saw Safety Warnings:

■ Wear safety glasses and hearing protection. Further protective equipment for head, hand, legs and feet is recommend. Adequate protective clothing will reduce personal injury by flying debris or accidental contact with saw chain.
- Keep all parts of the body away from the saw chain when the motor is operating. Before you start the saw, make sure the saw chain is not contacting anything. A moment of inattention while operating chain saws may cause entanglement of your clothing or body with the saw chain.

■ Do not operate a chain saw in a tree. Operation of a chain saw in a tree, may result in personal injury.
- Secure work. Operate chain saw safely and always with both hands. Secure loose wood or logs with brackets, saw horse or appropriate means when sawing. Use clamps or a vice to hold the wood.
■ When cutting a limb that is under tension be alert for spring back. When the tension in the wood fibres is released the spring loaded limb may strike the operator and/or throw the chain saw out of control.
■ Use extreme caution when cutting brush and saplings. The slender material may catch the saw chain and be whipped toward you or pull you off balance.
- Carry the chain saw by the front handle with the saw chain stopped and the guide bar pointing to the rear. When transporting or storing the chain saw always fit the guide bar cover. Proper handling of the chain saw will reduce the likelihood of accidental contact with the moving saw chain.
■ Follow instructions for lubricating, chain tensioning and changing accessories. Improperly tensioned or lubricated chain may either break or increase the chance for kickback.
- Keep handles dry, clean, and free from oil and grease. Greasy, oily handles are slippery causing loss of control.
- Cut wood only. Don't use chain saw for purposes not intended – for example – Don't use chain saw for cutting plastic, masonry or non-wood building materials. Use of the chain saw for operations different then intended could result in a hazardous situation.

Causes and Operator Prevention of Kickback:

• Kickback may occur when the nose or tip of the guide bar touches an object, or when the wood closes in and pinches the saw chain in the cut.
• Tip contact in some cases may cause a sudden reverse reaction, kicking the guide bar up and back towards the operator.
• Pinching the saw chain along the top of the guide bar may push the guide bar rapidly back towards the operator.
• Either of these reactions may cause you to lose control of the saw which could result in serious personal injury. Do not rely exclusively upon the safety devices built into your saw. As a chain saw user, you should take several steps to keep your cutting jobs free from accident or injury.

Kickback is the result of tool misuse and/or incorrect operating procedures or conditions and can be avoided by taking proper precautions as given below:

■ Maintain a firm grip, with thumbs and fingers encircling the chain saw handles, with both hands on the saw and position your body and arm to allow you to resist kickback forces. Kickback forces can be controlled by the operator, if proper precautions are taken. Do not let go of the chain saw.

■ Do not over reach and do not cut above shoulder height. This helps prevent unintended tip contact and enables better control of the chain saw in unexpected situations.
■ Only use replacement bars and chains specified by the manufacturer. Incorrect replacement bars and chains may cause chain breakage and/or kickback.
- Follow the manufacturer's sharpening and maintenance instructions for the saw chain. Decreasing the depth gauge height can lead to increased kickback.

Product Specification

Chain saw		GKE 35 BCE PROFESSIONAL	GKE 40 BCE PROFESSIONAL
Part number (TYP)		0 601 597 6..	0 601 597 7..
Tool-less chain tensioning (SDS)		●	●
Rated power input	[W]	2 100	2 100
Chain speed (no load)*	[m/s]	12	12
Chain bar length	[cm]	35	40
Kickback braking time	[secs]	< 0.1	< 0.1
Braking time of the run down brake	[secs]	< 1	< 1
Chain pitch		3/8"	3/8"
Drive link thickness	[mm]	1.3	1.3
Amount of drive links		52	57
Oil reservoir capacity	[ml]	200	200
Automatic oiler		●	●
Weight without mains cable, approx. **	[kg]	4.6	4.8
Protection class		☐ / II	☐ / II

* limited by electronics
** measured with chain bar and chain
Note: Please observe the order number of your machine. The trade names of individual machines can vary.

Intended Use

The machine is intended for sawing of wood, e. g. wooden beams, boards, branches, tree trunks, etc., as well as for felling of trees. It can be used for cuts alongside and lateral to the direction of the grain. This product is not suitable for sawing mineral materials.

Introduction

This manual gives instructions on the correct assembly and safe use of your chain saw. It is important that you read these instructions carefully.

Delivered Items

Carefully remove the machine from its packaging and check for complete contents:

• Chain saw
• Cover plate
• Chain
• Chain bar
• Chain guard
• Operating instructions

When parts are missing or damaged, please contact your dealer.

Operating Controls

The numbering of the machine elements refers to the representation of the machine on the graphics page.

While reading the operating instructions, unfold the graphics page for the machine and leave it open.

1 Rear handle
2 Lock-off button
3 On/Off switch
4 Oil filler cap
5 Activation lever for kickback brake (hand guard)
6 Front handle
7 Deactivation mark for kickback brake
8 Nose sprocket
9 Chain guard

10 Chain

11 Chain bar

12 Gripping teeth

13 Tensioning ring (red)

14 Locking knob

15 Cover plate

16 Serial Number

17 Chain tensioning catch

18 Fastening bolt

19 Guide fins for chain bar

20 Oil outlet

21 Symbol for rotation and cutting direction

22 Drive sprocket

23 Chain catch bolt

24 Oil-level indicator

25 Reset button for thermal safety switch

26 Ventilation slots

27 Control indication for kickback brake (red dot)

28 Dust protection cover

Not all of the accessories illustrated or described are included as standard delivery.

For Your Safety

Warning! Switch off, remove plug from mains before adjusting cleaning or if the cable is cut, damaged or entangled.

Caution! Do not touch rotating chain.

Do not operate chain saw near other people, children or animals. Do not operate chain saw after drinking alcohol or under the influence of intoxicating drugs or medication.

Electrical Safety

Your machine is double insulated for safety and requires no earth connection. The operating voltage is 230 V AC, 50 Hz (for non-EU countries 220 V, 240 V as applicable). Only use approved extension cables. Extension cords/leads should only be used if they comply with H07-F types or IEC (60227 IEC 53).

If you want to use an extension cable when operating your product, only the following cable dimensions should be used:

- 1.0 ~mm^2 : max length 40 ~m

- 1.5 ~mm^2 : max length 60 m

- 2.5 ~mm^2 : max length 100 m

It is recommended for increased electrical safety to use a Residual Current Device (RCD) with a tripping current of not more than 30 mA. Always check your RCD every time you use it.

The couplings of connection leads must be protected against splashes and the coupling sockets on the leads must be made of rubber or coated with rubber.

Fixing means for the connection leads must be used.

The connection lead must be inspected for signs of damage at regular intervals and may only be used if in perfect condition.

If the supply cord is damaged, it must be replaced by a Bosch Service Centre.

Assembly/Tensioning Chain (see figure A)

Do not connect the chain saw to mains before it is completely assembled.

■ Always use gloves when handling the chain.

Chain and chain bar Assembly

1. Unpack all parts carefully.
2. Align the two assembly arrows ▶ on the tensioning ring 13 and cover plate 15.

15 13

1. Place the chain saw on any suitable flat surface.

Use only genuine Bosch chains designed for chainbars with 1.3 mm groove (guage).

1. Slide the chain 10 in the slot around the chain bar 11. Ensure chain is in correct running direction by comparing with chain symbol 21. Ensure the chain tensioning catch 17 is facing outwards.

10 17 11

1. Fit the chain onto the drive sprocket 22 and guide the chain bar 11, so that the fastening bolt 18 and the two guide fins 19 fit into the keyway of the chain bar 11.

21 22 18 19 11

1. Check if all parts are seated properly and hold chain and chain bar in a level position. Slide the chain bar 11 all the way to the front.

Diagram of a chain drive mechanism with a hand operating it, showing chain teeth and motion direction (no text or symbols)

1. Fit cover plate, check that arrows are still aligned and ensure that the chain catch bolt 23 fits into the groove of the cover plate 15.

BOSCH 15 23

1. Screw on the cover plate 15 with the locking knob 14.

Diagram of a chain-link robotic device with arrows indicating motion direction (no text or symbols)

The chain is not yet tensioned. Tensioning the chain applies as described under “Tensioning chain”, item 1–7.

Tensioning chain

Always check the chain tension before use, after the first cuts and regularly during use, approx. every 10 minutes. Upon initial operation, new chains can lengthen considerably.

The chain life of the saw chain mainly depends upon sufficient lubrication and correct tensioning.

Avoid tensioning the chain if it is hot, as this will cause the chain to become overtensioned when it cools down.

1. Place the chain saw on any suitable flat surface.
2. Turn locking knob 14 approx. 1–3 turns anticlockwise to loosen the chain bar.
3. Check if the chain links are correctly located in the slot around the chain bar 11 and drive sprocket 22.

1. Turn the red tensioning ring 13 clockwise ratcheting until the correct chain tension is reached. The ratchet mechanism prevents the chain tension from loosening. The locking knob 14 may also turn, when turning the tension ring 13. If the tensioning ring 13 is hard to turn, loosen the locking knob 14 once more anticlockwise.
2. The correct chain tension is reached when the chain 10 can be raised approx. 3–4 mm from the chain bar in the centre. This should be done by using one hand to raise the chain against the weight of the machine.

10 3-4 mm

1. If the chain 10 is overtensioned, turn tensioning ring 13 anticlockwise to loosen the chain.
2. If the chain 10 is tensioned optimal, lock the chain bar 11 by tightening the locking knob 14 in clockwise direction. Do not use tools.

Lubrication (see figure B)

Important: The chain saw is not supplied filled with oil. It is essential to fill with oil before use. Never operate the chain saw without chain oil or at an empty oil tank level, as this will result in extensive damage to the product.

Chain life and cutting capacity depend on optimum lubrication. Therefore, the chain is automatically oiled during operation via the oil outlet 20.

Filling oil tank:

• Set chain saw on any suitable surface with oil filler cap 4 facing upward.
• Clean area around the oil filler cap 4 with cloth, unscrew cap.
• Do not remove filter insert during filling.
• Add Bosch biodegradable chain saw oil until reservoir is full.
• Avoid dirt or debris entering oil tank, refit oil filler cap 4 and tighten.

Important: To allow venting of the oil reservoir, small breather channels are provided between the oil filler cap and the strainer, to prevent leakage ensure machine is left in a horizontal position (oil filler cap 4 uppermost) when not in use.

It is important to use only the recommended biodegradable oil to avoid damage to the chain saw. Never use recycled/old oil. Use of non approved oil will invalidate the warranty.

Starting and Stopping

Observe the correct mains voltage! The voltage of the power source must agree with the value given on the nameplate of the machine. Machines designated for 230 V can also be operated with 220 V.

Switching On and Off

Hold chain saw as described in "Cutting".

For switching on the machine, press the lock-off button 2, then fully press the On/Off switch 3 and hold in this position. The lock-off button 2 can now be released.

For switching off, release the On/Off switch 3.

Do not stop chain saw after sawing by activating the front hand guard (kickback brake).

Temperature-dependent Overload Protection

In case of machine overload, e.g. due to a dull chain, the motor may come to a standstill, caused by actuation of the thermal safety switch. Resetting is carried out by pressing the reset button for the thermal safety switch 25. Afterwards, operate the chain saw for approx. 1 minute at no load.

Reduced Starting Current

Due to the soft, jolt-free starting of the machine, a 13 A fuse is sufficient.

Kickback Brake/Run Down Brake

The chain saw is equipped with two chain brake systems for user safety:

The run down brake automatically stops the chain and motor after the switch lever (On/Off) 3 is released.

The kickback brake is a safety mechanism activated through the front hand guard 5, when kickback occurs. Chain stop response time is 0.1 sec.

Perform an operational check from time to time. Push the front hand guard 5 to the front (position ②) so that the red dot 27 becomes visible under the mark 7 and briefly switch on the chain saw. The chain must not start. In order to release the kickback brake again, pull back the front hand guard 5 (position ①) so that the red dot 27 is covered under the mark 7 (see figure D).

Cutting

Before Cutting

Before and periodically during cutting check as follows:

– Is the chain saw in a fail-safe condition?
- Is the oil reservoir filled? Check oil level gauge 24 prior to starting and regularly during operation. Refill oil when oil level is low. The oil tank filling will last approx. 15 minutes, depending on sawing intensity and stops.
- Is the chain tension in order and is the chain sharp? Check chain tension every 10 minutes during operation. Upon initial operation, new chains can lengthen considerably. The condition of the chain influences the the cutting performance. Only a sharp chain protects from overload.
- Is the kickback brake deactivated and its function ensured?
- Are you wearing the necessary protective equipment? Wear safety glasses and hearing protection. Further protective equipment for head, hand, legs and feet is recommend. Adequate protective clothing will reduce personal injury by flying debris or accidental contact with saw chain.

Kickback (see figure D)

Kickback is the sudden backward/upward motion of the chain saw, occurring when the chain (at the tip of the chain bar) comes in contact with a log or wood, or when the chain becomes jammed.

When kickback occurs the chainsaw reacts unpredictably and can cause severe injuries to the operator or bystanders.

Particular attention must be given when sawing sidewards, slanted or during length cuts, as the gripping teeth 12 usually can not be applied.

To avoid kickback:

• Saw with the chain bar at a flat angle.
• Never work with a loose, widely stretched or the heavily worn out chain.
• Ensure chain is sharpened correctly.
  – Never saw above shoulder height.
• Never work with the tip of the chain bar.
  – Always the hold chain saw firmly with both hands.
  – Always use a Bosch low-kickback chain.
• Apply the metal gripping teeth 12 for leverage.
  – Ensure correct chain tension.

General Behavior

Always hold the chain saw firmly with both hands. Front grip with the left hand and rear grip with the right hand. Fully grip both handles at all times during operation. Never operate chain saw using only one hand. Ensure power cord is located to the rear, away from the chain and wood and so positioned that it will not be caught on branches or the like during cutting (see figure D).

Use the chain saw only with secure footing. Hold the chain saw at the right-hand side of your body (see figure E).

The chain must be running at full speed before it makes contact with the wood. Use the metal gripping teeth 12 to secure the saw onto the wood before starting to cut. Use the gripping teeth as a leverage point "X" while cutting (see figure F).

Reset the gripping teeth at a lower point when sawing thicker logs by pulling the chain saw slightly backwards until the gripping teeth release, and reposition at lower level to continue sawing. Do not remove the saw completely from the wood.

Do not force the chain while cutting, let the chain do the work, using the gripping teeth 12 to apply minimal leverage pressure.

Do not operate the chain saw with arms fully extended or attempt to saw areas which are difficult to reach, or on a ladder. Never use the chain saw above shoulder height (see figure ①).

Sawing is optimized when the chain speed remains steady during cutting.

Beware when reaching the end of the cut. The weight of the saw may change unexpectedly as it cuts free from the wood. Accidents can occur to the legs and feet.

Always remove the saw from a wood cut while the saw is running.

Cutting Logs (see figures E+H)

Observe the following safety instructions:

Support logs so that the face sides at the cut do not close in against each other, which would result in the chain being jammed or pinched.

Position and set short logs safely prior to sawing.

Saw only wood or wooden objects. When sawing, always take care to avoid hitting stones, nails, etc., as these could be thrown up or cause damage to the chain or serious injury to the operator or bystanders.

Keep a running saw clear of wire fencing or the ground.

Use of the saw to thin out branches or bushes is not approved.

Length cuts must be carried out with care, as leverage with the gripping teeth 12 is not possible. Saw at a flat angle to avoid kickback.

When working on a slope, operate above or to the side of the trunk or laying tree.

Be careful not to trip over tree stumps, branches, roots, etc.

Cutting Wood under Tension (see figure H)

There is a high risk of accidents when sawing wood, branch or trees under tension. Be extremely careful. Leave saw jobs like these to professionals.

When sawing logs supported on both ends, start the cut from above (Y) about 1/3 of the diameter into the log and then finish the cut (Z) from below, in order to avoid splitting of the log or jamming of the saw. Avoid contact of the chain saw with the ground. When sawing logs supported on only one end, start the cut from below (Y) about 1/3 of the diameter into the log and finish the cut from above (Z), in order to avoid log splitting or jamming of the chain saw.

Felling Trees (see figure 1)

Always wear hard hat to protect head against falling branches.

The chain saw can only be used to fell trees smaller in diameter than the length of the chain bar.

① Secure work area. Ensure no persons or animals are in the vicinity of the falling tree.

Never attempt to free a jammed saw with the motor running. Use wooden wedges to free chain and chain bar.

When cutting and felling operations are being performed by two or more persons, at the same time, the felling operations should be separated from the cutting operation by a distance of at least twice the height of the tree being felled. Trees should not be felled in a manner that would endanger any person, strike any utility line or cause any property damage. If the tree does make contact with any utility line, the company should be notified immediately.

The chain saw operator should keep on the uphill side of the terrain as the tree is likely to roll or slide downhill after it is felled.

② An escape path should be planned and cleared as necessary before cuts are started. The escape path should extend back and diagonally to the rear of the expected line of fall.

③ Before felling is started, consider the natural lean of the tree, the location of larger branches and the wind direction to judge which way the tree will fall. Remove dirt, stones, loose bark, nails staples, and wire from the tree.

Notching Undercut: Make the notch (X - W) 1/3 the diameter of the tree, perpendicular to the direction of falls as Make the lower horizontal notching cut first. This will help to avoid pinching either the saw chain or the guide bar when the second notch is being made.

Felling Back Cut: Make the felling back cut (Y) at least 50 mm higher than the horizontal notching cut. Keep the felling back cut parallel to the horizontal notching cut. Make the felling back cut so enough wood is left to act as a hinge. The hinge wood keeps the tree from twisting and falling in the wrong direction. Do not cut through the hinge.

As the felling gets close to the hinge the tree should begin to fall. If there is any chance that the tree may not fall in desired direction or it may rock back and bind the saw chain, stop cutting before the felling back cut is complete and use wedges of wood, plastic or aluminium to open the cut and drop the tree along the desired line of fall.

When the tree begins to fall remove the chain saw from the cut, stop the motor, put the chain saw down, then use the retreat path planned. Be alert for overhead limbs falling and watch your footing.

To complete the felling operation, drive a wedge (Z) into the horizontal cut.

Maintenance

Before any work on the machine itself, pull the mains plug from the socket.

Note: To ensure long and reliable service, carry out the following maintenance regularly.

Regularly check for obvious defects such as loose, dislodged or damaged chain and chain bar, loose fixings and worn or damaged components.

Care has to be taken that the chain is loosened with the chain tensioning ring 13 before disassembly of the chain. Forgetting to loosen can damage the SDS mechanism.

Check that covers and guards are undamaged and correctly fitted. Carry out necessary maintenance or repairs before using the chain saw.

If the chain saw should happen to fail despite the care taken in manufacturing and testing, repair should be carried out by an authorized customer service agent.

Before returning, ensure all oil in the oil tank has been emptied by removing the sieve during emptying. Replace sieve.

For all correspondence and spare parts orders, always include the 10-digit part number (TYP) from the nameplate of the machine!

Replacing/Changing Chain and Chain Bar

Fit the chain and chain bar as described in “Assembly and Tensioning Chain”.

The circular groove of the chain bar will wear particularly on the lower edge with time. When replacing the chain turn the chain bar 180^ to allow even wear, thus extending chain bar life.

Remount the chain tensioning catch 17 on the chain bar.

Check drive sprocket 22. If it is worn out or damaged due to strain, have it exchanged by an authorized Bosch service agent.

Sharpening Chain

Have your chain sharpened professionally at your Bosch approved service agent or sharpen the chain yourself using the Bosch sharpening kit or a Dremel power tool with the appropriate grinder (1453), both available at your Bosch approved service agent. Follow the sharpening instructions supplied with the sharpening kit.

Checking the Automatic Oiler

Proper functioning of the automatic oiler can be checked by running the chain saw and pointing the tip of the chain bar towards a piece of cardboard or paper on the ground. Caution: Do not touch the ground with the chain. Ensure safety clearance of 20 cm. If an increasing oil pattern develops, the automatic oiler is operating fine. If there is no oil pattern, despite a full oil reservoir, see “Fault Finding” or contact your Bosch approved service agent.

Accessories

Chain

for chain bar 350 mm....2 604 730 000

for chain bar 400 mm....2 604 730 001

Chain bar DOUBLE GUARD

350 mm 2 602 317 050

400 mm 2 602 317 051

Additional accessories

Chain sharpening/cleaning kit.... 2 607 000 180

Chain saw oil, biologically degradable

1 | 2 607 000 181

Protective goggles....2 607 990 041

Protective goggles

for persons wearing glasses.... 2 607 990 037

Cleaning/Storage

Clean the moulded plastic housing of the chain saw using a soft brush and clean cloth. Do not use water, solvents or polishes. Remove all debris, especially from the motor cooling vents 26.

Remove and brush clean the cover plate 15, chain and chain bar after 1 to 3 hours of use.

Clean the area under the cover plate 15, the drive sprocket 22 and chain bar assembly using a soft brush. Clean oil outlet 20 with a clean cloth.

When the chain tensioning mechanism in the cover plate 15 is sluggish, take off the dust protection cover 28, turn the locking knob 14 as well as the tensioning ring 13 against each other so that deposits within the mechanism are loosened and can fall out to the bottom. Carefully tap out the cover plate 15. When the mechanism is heavily gummed up, clean with a soft brush or compressed air. Do not use tools by any means (see figure K).

If the chain saw is to be stored for a longer period of time, clean chain and chain bar.

Store in a secure, dry place out of the reach of children. Do not place other objects on the chain saw.

To prevent leakage ensure machine is left in a horizontal position (oil filler cap 4 uppermost).

When storing machine in original packaging the oil tank must be completely emptied.

Fault Finding

The following table gives checks and actions that you can perform if your machine does not operate correctly. If these do not identify/remedy the problem, contact your service agent.

Warning: Switch off and remove plug from mains before investigating fault.

Symptom	Possible Cause	Remedy
Chain saw fails to operate	Kickback brake is activatedNo powerMains socket faultyExtension cord damagedFuse faultyTemperature-dependent overload protection has actuated	Pull hand guard 5 back in position 1 so that the red dot is coveredCheck powerUse another socketCheck cord, replaceReplace fusePress the reset button for the thermal safety switch 25 and operate the chain saw for approx. 1 minute at no load
Chain saw operates intermittently	Extension cord damagedLoose connectionInternal wiring defectiveOn/Off switch defective	Check cord, replaceContact service agentContact service agentContact service agent
Dry chain	No oil in reservoirVent in oil filler cap cloggedOil passage clogged	Refill oilClean capClean oil passage outlet
Run down brake/kick-back brake ineffective; chain is not braked		Contact service agent
Chain/chain bar overheats	No oil in reservoirVent in oil filler cap cloggedOil passage cloggedChain is over tensionedDull chain	Refill oilClean capClean oil passage outletAdjust chain tensionSharpen chain or replace
Chain saw rips, vibrates, does not saw properly	Chain tension too looseDull chainChain worn outChain teeth are facing in the wrong direction	Adjust chain tensionSharpen chain or replaceReplace chainReassemble with chain in correct direction

Disposal

Power tools, accessories and packaging should be sorted for environmentally-friendly recycling.

Only for EC countries:

Do not dispose of power tools into household waste!

According to the European Directive 2002/96/EC on waste electrical and electronic equipment and its incorporation into national law, power tools

that are no longer suitable for use must be separately collected and sent for recovery in an environmentally-friendly manner.

Service

Exploded views and information on spare parts can be found under: www.bosch-pt.com

Great Britain

Robert Bosch Ltd. (B.S.C.)

P.O. Box 98

Broadwater Park

North Orbital Road

Denham-Uxbridge

Middlesex UB 9 5HJ

Service....+44 (0) 18 95 / 83 87 82

Advice line ..... +44 (0) 18 95 / 83 87 91

Fax....[phone] / 83 87 89

Ireland

Beaver Distribution Ltd.

Greenhills Road

Tallaght-Dublin 24

Service....+353 (0)1 / 414 9400

Fax....+353 (0)1 / 459 8030

Australia and New Zealand

Robert Bosch Australia Pty. Ltd.

RBAU/SPT

1555 Centre Road

P.O. Box 66

3168 Clayton/Victoria

📞 +61 (0)1 / 3 00 30 70 44

Fax....+61 (0)1 / 3 00 30 70 45

www.bosch.com.au

Noise/Vibration Information

Measured values determined according to 2000/14/EC and EN 50144.

Typically the A-weighted noise levels of the product are: sound pressure level: 90 dB (A); sound power level: 103 dB (A).

Wear hearing protection!

The typical weighted acceleration is 6 m/s^2 .

(€ Declaration of Conformity

We declare under our sole responsibility that this product is in conformity with the following standards or standardization documents: EN 50144 according to the provisions of the directives 89/336/EEC, 98/37/EC, 2000/14/EC.

EC Type Certification No. 206 00 86 by notified testing agency No. 0344.

2000/14/EC: The guaranteed sound power level L_WA is lower than 105 dB (A). Conformity assessment procedure according to Annex V.

Senior Vice President

Engineering

Dr. Eckerhard Strötgen

Head of Product

Certification

i.v. Mogen

Robert Bosch GmbH, Power Tools Division

Subject to change without notice

Diagram of a chain drive mechanism with a hand operating it, showing chains and motion arrows (no text or symbols)

Diagram of a chain drive mechanism with directional arrows indicating motion (no text or symbols)

10 3-4 mm

Robert Bosch France S.A.S.

Service Après-vente/Outillage

Senior Vice President

Engineering

Dr. Eckerhard Strötgen

Head of Product

Certification

i.v. Nguyen

Robert Bosch GmbH, Power Tools Division

Mechanical diagram showing a chain being cut with a hand, no text or symbols present

Diagram of a chain drive mechanism with arrows indicating motion direction (no text or symbols)

10 3-4 mm

Senior Vice President

Engineering

Dr. Eckerhard Strötgen

Head of Product

Certification

i.v. Nguyen

Robert Bosch GmbH, Power Tools Division

Mechanical assembly showing a chain being cut with a hand, no visible text or symbols

Diagram of a chain drive mechanism with arrows indicating motion direction (no text or symbols)

10 3-4 mm

Senior Vice President

Engineering

Dr. Eckerhard Strötgen

Head of Product

Certification

i.v. Nuoyen

Robert Bosch GmbH, Power Tools Division

Mechanical assembly diagram showing a chain being cut with a directional arrow (no text or symbols)

Diagram of a chain-link robotic arm with directional arrows indicating movement (no text or symbols)

10 3-4 mm

Senior Vice President

Engineering

Dr. Eckerhard Strötgen

Head of Product

Certification

i.v. Moyen

Robert Bosch GmbH, Power Tools Division

Diagram of a chain drive being cut with a hand, showing gear and chain (no text or symbols)

Diagram of a chain drive mechanism with arrows indicating motion direction (no text or symbols)

10 3-4 mm

Senior Vice President

Engineering

Dr. Eckerhard Strötgen

Head of Product

Certification

i.v. Moyen

Robert Bosch GmbH, Power Tools Division

Illustration of a hand using a chain to cut a mechanical component (no text or symbols visible)

Diagram of a chain drive mechanism with arrows indicating motion direction (no text or symbols)

10 3-4 mm

Senior Vice President

Engineering

Dr. Eckerhard Strötgen

Head of Product

Certification

i.v. Nuoyen

Robert Bosch GmbH, Power Tools Division

Mechanical assembly diagram showing a chain being cut with a hand, no text or symbols present

Diagram of a chain-coil mechanical component with an arrow indicating downward motion (no text or symbols present)

10 3-4 mm

Senior Vice President

Engineering

Dr. Eckerhard Strötgen

Head of Product

Certification

ppa. devena

i.v. Nuoyen

Robert Bosch GmbH, Power Tools Division

Illustration of a hand using a chain-linking device to cut a chain (no text or symbols present)

Diagram of a chain drive mechanism with arrows indicating motion direction (no text or symbols)

10 3-4 mm

Senior Vice President

Engineering

Dr. Eckerhard Strötgen

Head of Product

Certification

ppa. devena

i.v. Nguyen

Robert Bosch GmbH, Power Tools Division

Mechanical assembly diagram showing a chain being cut with a hand, no text or symbols present

Mechanical chain link diagram showing a chain with directional arrows (no text or symbols)

10 3-4 mm

Senior Vice President Head of Product

Engineering Certification

ppa. Mauka i.v. Muoyen

Robert Bosch GmbH, Power Tools Division

Mechanical assembly diagram showing a chain being cut with a hand, no text or symbols present

Diagram of a chain-link robotic device with directional arrows indicating movement (no text or symbols)

10 3-4 mm

Senior Vice President

Engineering

Dr. Eckerhard Strötgen

Head of Product

Certification

i.v. Mogen

Robert Bosch GmbH, Power Tools Division

Mechanical assembly diagram showing a chain being cut with a hand, no text or symbols present

Diagram of a chain drive mechanism with arrows indicating motion direction (no text or symbols)

10 3-4 mm

Bosch San. ve Tic. A.S.

Ahi Evran Cad. No:1 Kat:22

Polaris Plaza

80670 Maslak/Istanbul

Senior Vice President

Engineering

Dr. Eckerhard Strötgen

Head of Product

Certification

i.v. Mogen

Robert Bosch GmbH, Power Tools Division

Black and white striped fabric pattern with no text or symbols

BOSCH

Robert Bosch GmbH

Power Tools Division

70745 Leinfelden-Echterdingen

www.bosch-pt.com

1 609 929 J52 (06.03) O/161