Bosch GCB 120 Professional Original Instructions Manual Download

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Bosch Power Tools

1 609 92A 19N | (12.6.15)

Noise/Vibration Information

Sound emission values determined according to
EN 60745-2-20.

Typically the A-weighted noise levels of the product are:
Sound pressure level 86 dB(A); Sound power level 97 dB(A).
Uncertainty K =3 dB.

Wear hearing protection!

Vibration total values a

(triax vector sum) and uncertainty K

determined according to EN 60745-2-20:
Cutting metal: a

=1.8 m/s

, K=1.5 m/s

The vibration level given in this information sheet has been
measured in accordance with a standardised test given in
EN 60745 and may be used to compare one tool with anoth-
er. It may be used for a preliminary assessment of exposure.
The declared vibration emission level represents the main ap-
plications of the tool. However if the tool is used for different
applications, with different accessories or insertion tools or is
poorly maintained, the vibration emission may differ. This
may significantly increase the exposure level over the total
working period.
An estimation of the level of exposure to vibration should also
take into account the times when the tool is switched off or
when it is running but not actually doing the job. This may sig-
nificantly reduce the exposure level over the total working
period.
Identify additional safety measures to protect the operator
from the effects of vibration such as: maintain the tool and the
accessories, keep the hands warm, organisation of work pat-
terns.

Technical Data

Only for EC countries:

Declaration of Conformity

We declare under our sole responsibility that the product de-
scribed under “Technical Data” is in conformity with all rele-
vant provisions of the directives 2009/125/EC (Regulation
1194/2012), 2011/65/EU, until 19 April 2016:
2004/108/EC, from 20 April 2016 on: 2014/30/EU,
2006/42/EC including their amendments and complies with
the following standards: EN 60745-1, EN 60745-2-20.

Technical file (2006/42/EC) at:
Robert Bosch GmbH, PT/ETM9,
70764 Leinfelden-Echterdingen, GERMANY

Robert Bosch GmbH, Power Tools Division
70764 Leinfelden-Echterdingen, GERMANY
Leinfelden, 02.06.2015

Assembly



Avoid unintentional starting of the machine. During as-
sembly and for all work on the machine, the power plug
must not be connected to the mains supply.

Inserting/Replacing the Band-saw Blade



Always wear protective gloves when mounting the
band-saw blade.

Danger of injury when touching the

band-saw blade.



Always wear safety goggles.

Safety goggles will reduce

the risk of injuries.

Selecting a Band-saw Blade

An overview of recommended band-saw blades can be found
at the end of these instructions.

Inserting/Replacing the Band-saw Blade
(see Fig. A1 – A4)

– Swing the lever

by 180° to release the pre-

tension on the band-saw blade

– Unscrew the two cross-head screws

and fold up the

cover

–

Freehand cutting:

Guide the band-saw blade

step by

step between the saw blade guides

. The back of the saw

blade must touch the bearings in the lower part of the saw
blade guides

Cutting close to walls:

Place the band-saw blade

step

by step in front of the saw blade guides

. The back of the

saw blade must touch the bearings in the lower part of the
saw blade guides

– Guide the band-saw blade

step by step around the two

rollers

– Swing the lever

by 180° to tension the

band-saw blade

– Check whether the band-saw blade

is positioned cor-

rectly around both rollers

. Fold down the cover

and

tighten both cross-head screws



Check that the band-saw blade 12 is seated correctly.
Switch the power tool on and off two or three times to
ensure that the band-saw blade is running correctly in
the saw blade guides.

If the band-saw blade is not mount-

ed correctly, it can come undone and injure you.

Band Saw

GCB 120

Article number

3 601 M36 0..

Rated power input

850

No-load speed

min

-1

61–230