Bosch GKE 40 BCE 0.601.597.703 - Инструкция по эксплуатации - Страница 30

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29

Bosch Power Tools

1 609 92A 11D | (3.12.14)

Maintenance and Service

Maintenance and Cleaning



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



For safe and proper working, always keep the machine 
and ventilation slots clean.

If the replacement of the supply cord is necessary, this has to 
be done by Bosch or an authorized Bosch service agent in or-
der to avoid a safety hazard.

Note: 

To ensure long and reliable service, carry out the follow-

ing maintenance regularly.

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

When disassembling the saw chain, take care that the chain is 
first loosened with the chain tensioning ring 

13

. Disassembly 

of the chain saw without first loosening the saw chain can 
damage the chain saw.

Check that covers and guards are undamaged and correctly 
fitted. Carry out necessary maintenance or repairs before us-
ing.

Note: 

Before returning the chain saw, ensure all oil in the oil 

reservoir has been emptied. For this, remove the sieve from 
the reservoir, empty the reservoir and replace the sieve again.

Replacing/Changing the Saw Chain and Chain Bar 
(see figure A)

Check the saw chain and chain bar according to section “Ten-
sioning the Saw Chain”.

The guide slot around the chain bar will wear with time. When 
replacing the saw chain, turn the chain bar by 180 ° to allow 
even wear. The chain tensioning catch 

22

 must also be re-

mounted on the chain bar.

Check the drive sprocket 

18

. If it is worn out or damaged due 

to strain, have it exchanged by an authorized Bosch after-
sales service.

Sharpening the Saw Chain

Have your chain sharpened professionally at your authorized 
Bosch after-sales service or sharpen the chain yourself using 
the Bosch sharpening kit or the Dremel Multi power tool with 
the appropriate grinder (1453). Observe the sharpening in-
structions provided with the sharpening kit.

Checking the Automatic Oiler

Proper functioning of the automatic saw chain 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. Do not touch the ground with the chain and ensure a 
safety clearance of 20 cm. If an increasing oil pattern devel-
opes, the automatic oiler is operating fine. If there is no oil 
pattern despite a full oil reservoir, see section “Troubleshoot-
ing” or contact your authorized Bosch after-sales service.

After Use/Storage

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

After 1 – 3 hours of use, remove the cover 

15

, the chain bar 

11

 and the saw chain 

10

, and clean them using a brush.

Clean the area under the cover 

15

, the drive sprocket 

18

 and 

the chain bar assembly from adherant debris using a brush. 
Clean the oil outlet 

19

 with a clean cloth.

If the chain tensioning mechanism in the cover 

15

 becomes 

difficult to operate, remove the protective lid 

27

, turn the 

locking knob 

14

 and the chain-tensioning ring 

13

 against 

each other, so that debris is loosened from the mechanism 
and can be discarded. Carefully strike or tap out debris from 
the cover 

15

. If the mechanism is heavily clogged, use a soft 

brush or compressed air for cleaning. Do not use tools of any 
kind. (see figure J)

Saw chain dry

No oil in reservoir

Refill oil

Vent in oil filler cap 

4

 clogged

Clean oil filler cap 

4

Oil passage clogged

Clean oil passage

Brake does not stop saw 
chain

Kickback brake/run-down brake defective Contact your Bosch Service Centre

Saw chain/guide bar hot

No oil in reservoir

Refill oil

Vent in oil filler cap 

4

 clogged

Clean oil filler cap 

4

Oil passage clogged

Clean oil passage

Chain tension too high

Tension saw chain

Dull saw chain

Sharpen saw chain or replace

Chain saw rips, vibrates, 
does not saw properly

Chain tension too loose

Tension saw chain

Dull saw chain

Sharpen saw chain or replace

Chain worn out

Replace saw chain

Chain teeth are facing in the wrong direc-
tion

Reassemble with chain in correct direction

Problem

Possible Cause

Corrective Action

OBJ_BUCH-716-005.book  Page 29  Wednesday, December 3, 2014  11:12 AM