Maintenance And Service; Maintenance And Cleaning - Bosch Professional GSH 5 Manual Original

OBJ_BUCH-2781-002.book Page 11 Tuesday, May 31, 2016 1:29 PM
Auxiliary Handle (see figure A)
 Operate your machine only with the auxiliary handle 6.
The auxiliary handle 6 can be set to any position for a secure
and low-fatigue working posture.
– Loosen the knurled nut 8, rotate the auxiliary handle 6
around the axis of the machine to the required position and
tighten the knurled nut 8 again.
– The auxiliary handle 6 can be mounted to a different posi-
tion. For this, completely unscrew the knurled nut 8 and
then pull out the hexagon bolt upward. Pull off the auxiliary
handle 6 to the side and turn around the remaining clamp-
ing element by 180°. Mount the auxiliary handle 6 in re-
verse order.
Changing the Tool
With the SDS-max tool holder, simpler and easier tool chang-
ing is possible without additional aids.
The dust protection cap 1 largely prevents the penetration of
dust into the tool holder during operation. When inserting the
tool, pay attention that the dust protection cap 1 is not dam-
aged.
 A damaged dust protection cap should be changed im-
mediately. We recommend having this carried out by
an after-sales service.
Inserting (see figure B)
– Clean and lightly grease the shank end of the tool.
– Push back the locking sleeve 2 and insert the tool in a twist-
ing manner into the tool holder. Release the locking sleeve
2 again in order to lock the tool.
– Check the latching by pulling the tool.
Removing (see figure C)
– Push back the locking sleeve 2 and remove the tool.
Dust/Chip Extraction
 Dust 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 dust can cause
allergic reactions and/or lead to respiratory infections of
the user or bystanders.
Certain dust, such as oak or beech dust, is considered car-
cinogenic, especially in connection with wood-treatment
additives (chromate, wood preservative). Materials con-
taining 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
materials to be worked.
Operation
Starting Operation
 Observe correct mains voltage! The voltage of the pow-
er source must agree with the voltage specified on the
nameplate of the machine. Power tools marked with
230 V can also be operated with 220 V.
Bosch Power Tools
Switching On and Off
– To start the machine, press the On/Off switch 5 and keep
it pressed.
– To lock the pressed On/Off switch 5, press the lock-on
button 4.
– To switch off the machine, release the On/Off switch 5 or
when it is locked with the lock-on button 4, briefly press
the On/Off switch 5 and then release it.
To save energy, only switch the power tool on when using it.
Changing the Chiselling Position (Vario-Lock)
The chisel can be locked in 12 positions. In this manner, the
optimum working position can be set for each application.
– Set the chisel adjustment switch 3 to the
"Changing the chiselling position (Var-
io-Lock)" position.
– Insert the chisel into the tool holder and turn it to the de-
sired position.
– Set the chisel adjustment switch 3 to the
"Chiselling" position and turn the chisel
until it engages.

Maintenance and Service

Maintenance and Cleaning

 Before any work on the machine itself, pull the mains
plug.
 For safe and proper working, always keep the machine
and ventilation slots clean.
When the carbon brushes wear below acceptable service tol-
erances, the machine will automatically cut out. The machine
must be sent to customer service for maintenance (for ad-
dress, see the "After-sales Service and Application Service"
section).
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.
If the machine should fail despite the care taken in manufac-
turing and testing procedures, repair should be carried out by
an after-sales service centre for Bosch power tools.
In all correspondence and spare parts order, please always in-
clude the 10-digit article number given on the type plate of
the machine.
After-sales Service and Application Service
Our after-sales service responds to your questions concern-
ing maintenance and repair of your product as well as spare
parts. Exploded views and information on spare parts can al-
so be found under:
www.bosch-pt.com
Bosch's application service team will gladly answer questions
concerning our products and their accessories.
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1 609 92A 30S | (31.5.16)