Bosch GKE 40 BCE 0.601.597.703 - Инструкция по эксплуатации - Страница 27

26

 | English 

1 609 92A 11D | (3.12.14)

Bosch Power Tools

Clamping the Chain Bar

– When  the  chain 

10

 is tensioned, clamp the chain bar 

11

 by 

turning the locking knob 

14

 in clockwise direction. Do not 

use a tool for this.

Saw-chain Lubrication (see figures A – B)

Note: 

The chain saw is not supplied filled with oil. It is essen-

tial to fill with oil before use. Operating the chain saw without 
chain oil or when the oil level is below the minimum mark will 
result in damage to the chain saw.

Chain life and cutting capacity depend on optimum lubrica-
tion. Therefore, the chain is automatically lubricated with 
chain oil during operation via the oil outlet 

19

.

Filling the oil reservoir:

– Set chain saw on any suitable surface with the oil filler cap 

4

 facing upward.

– Clean area around the oil filler cap 

4

 with a cloth and un-

screw the cap.

– Do not remove filter insert during filling.
– Add chain saw oil (preferably biodegradable) until 

tank/reservoir is full.

– Avoid dirt or debris from entering the oil reservoir. Screw 

on oil filler cap 

4

 again and tighten.

Note: 

Four small compensation channels allow for pressure 

compensation between the oil reservoir and the environment. 
For functional reasons, minor amounts of oil can escape here. 
Please take care to place down the chain saw with the oil filler 
cap 

4

 facing upward.

Note: 

It is important to use only chain saw oil (preferably bio-

degradable) to avoid damage to the chain saw. Never use re-
cycled/old oil as doing so will invalidate the warranty.

Dust/Chip Extraction



Dusts from materials such as lead-containing coatings, 
some wood types, minerals and metal can be harmful to 
one’s health. Touching or breathing-in the dusts can cause 
allergic reactions and/or lead to respiratory infections of 
the user or bystanders.
Certain dusts, such as oak or beech dust, are considered 
as carcinogenic, especially in connection with wood-treat-
ment additives (chromate, wood preservative). Materials 
containing asbestos may only be worked by specialists.
– Provide for good ventilation of the working place.
– It is recommended to wear a P2 filter-class respirator.

Observe the relevant regulations in your country for the mate-
rials to be worked.

Operation

Starting Operation



Observe the mains voltage! 

The voltage of the power 

source must correspond with the data on the type plate of 
the machine.

Switching On and Off

To save energy, only switch the power tool on when using it.

Hold the chain saw as described in section “Working with the 
Chain Saw”.

To 

start

 the machine, 

first

 push the lock-off button for the 

On/Off switch 

2

 and 

then

 press the On/Off switch 

3

 and keep 

it pressed.

To 

switch off

 the machine, release the On/Off switch 

3

.

Note: 

For safety reasons, the On/Off switch 

3

 cannot be 

locked; it must remain pressed during the entire operation.

Note: 

Do not stop chain saw after sawing by actuating the 

front hand guard 

5

 (activating the kickback brake).

Reduced starting current

The electronic reduced starting current limits the power con-
sumption when switching the tool on and enables operation 
from a 13 ampere fuse.

Temperature Dependent Overload Protection

In case of overload, e. g., when the saw chain is dull, the mo-
tor can stop due to actuation of the thermal safety switch. 
Press the reset button 

25

 to reset the safety switch. After-

wards, the chain saw must be operated at no-load for approx. 
1 minute.

Run-down Brake/Kickback Brake (see figure D)

The chain saw is equipped with two safety features:

The 

run-down brake

 stops the saw chain after releasing the 

On/Off switch 

3

.

The 

kickback brake

 is a safety mechanism activated through 

the front hand guard 

5

 when kickback occurs. Chain stop re-

sponse time is 0.1 seconds.

The following function check should be carried out at regular 
intervals. Push the front hand guard 

5

 forward (position 



) 

so that the red dot 

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 under the mark 

7

 becomes visible, and 

briefly start the chain saw. The saw chain must not start. To 
deactivate the kickback brake again, pull the front hand guard 

5

 back (position 



), so that the red dot 

26

 under the mark 

7

is covered.

Working with the Chain Saw

Before Cutting

Before starting operation and periodically during cutting, car-
ry out the following checks:

– Is the chain saw in a fail-safe condition?
– Is the oil reservoir filled? Check oil level gauge prior to 

starting and regularly during operation. Refill oil when oil 
level has reached the bottom edge of the viewing glass. 
The oil tank filling will last approx. 15 minutes, depending 
on sawing intensity and stops.

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