Bosch AKE 35-19 S - Инструкция по эксплуатации - Страница 26

26

 | English 

F 016 L81 142 | (7.12.16)

Bosch Power Tools

Troubleshooting

The following chart lists problem symptoms, possible causes and corrective action, if your machine does not operate properly. 
If these do not identify and correct the problem, contact your service agent.



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

Maintenance and Cleaning



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

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 

14

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

Reverse the chain tensioning catch 

23

 by removing the 

screws and refitting it on the opposited side.

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.

Problem

Possible Cause

Corrective Action

Chain saw fails to operate

Kickback brake is activated

Pull activation lever for kickback brake (hand 
guard) 

5

 back in position 



, so that the red dot 

28

is covered

Plug not connected

Connect plug

Mains socket faulty

Use another socket

Fuse faulty / blown

Replace fuse

Extension cable damaged

Try without extension cable

Chain saw operates 
intermittently

Mains cable defective

Check mains cable and have it replaced, if required

External or internal wiring defect

Contact your Bosch Service Centre

On/Off switch 

2

 defective

Contact your Bosch Service Centre

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

OBJ_BUCH-1238-002.book  Page 26  Wednesday, December 7, 2016  2:54 PM