Maintenance And Service - Bosch GSH Professional 5 Notice Originale

12 | English
Operation
Pull the plug out of the socket before carrying out any
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work on the power tool.
Starting Operation
Pay attention to the mains voltage. The voltage of the
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power source must match the voltage specified on the
rating plate of the power tool. Power tools marked
with 230 V can also be operated with 220 V.
Products that are only sold in AUS and NZ: Use a resid-
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ual current device (RCD) with a nominal residual current
of 30 mA or less.
Switching On and Off
– To start the power tool, press and hold the on/off switch
(5).
– Press the lock-on button (4) to lock the on/off switch (5)
in this position.
– To switch off the power tool, release the on/off switch
(5); or, if the switch is locked with the lock-on button (4),
briefly press the on/off switch (5) and then release it.
At low temperatures, the power tool will take a certain
amount of time to reach its full impact performance. You can
shorten this warm-up time by tapping the power tool's inser-
ted application tool on the ground once.
Changing the Chiselling Position (Vario-Lock)
You can lock the chisel in 12 different positions, allowing
you to select the optimum working position for each task.
Turn the chisel adjustment
switch (3) to the Changing
the Chiselling Position
(Vario-Lock) position.
– Insert the chisel into the tool holder and turn the chisel to
the required position.
Turn the chisel adjustment
switch (3) to the Chiselling
position and turn the chisel
until it audibly clicks into
place.
Working Advice
Sharpening the chiselling tools (see figure C)
Only sharp chiselling tools will produce good results, there-
fore sharpen your chiselling tools in good time before use.
This will ensure a long service life for the tools and good
work results.
Re-sharpening
Grind chiselling tools against sanding discs, e.g. aluminium
oxide, under a steady stream of water. Make sure that the
cutting edges show no annealing colours; this will impair the
hardness of the chiselling tools.
To forge a chisel, heat it to 850–1050 °C (pale red to yel-
low).
To harden a chisel, heat it to approx. 900 °C and quench in
1 609 92A 77X | (28.03.2022)
oil. Then, leave it in an oven for approx. one hour at 320 °C
(annealing colour: pale blue).

Maintenance and Service

Maintenance and Cleaning
Pull the plug out of the socket before carrying out any
u
work on the power tool.
To ensure safe and efficient operation, always keep
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the power tool and the ventilation slots clean.
In order to avoid safety hazards, if the power supply cord
needs to be replaced, this must be done by Bosch or by an
after-sales service centre that is authorised to repair Bosch
power tools.
Replace a damaged dust protection cap immediately.
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It is recommended that you have use an after-sales
service for this.
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. You can find explosion drawings and information on
spare parts at: www.bosch-pt.com
The Bosch product use advice team will be happy to help you
with any questions about our products and their accessor-
ies.
In all correspondence and spare parts orders, please always
include the 10‑digit article number given on the nameplate
of the product.
Great Britain
Robert Bosch Ltd. (B.S.C.)
P.O. Box 98
Broadwater Park
North Orbital Road
Denham Uxbridge
UB 9 5HJ
At www.bosch-pt.co.uk you can order spare parts or arrange
the collection of a product in need of servicing or repair.
Tel. Service: (0344) 7360109
E-Mail: boschservicecentre@bosch.com
You can find further service addresses at:
www.bosch-pt.com/serviceaddresses
Disposal
The power tool, accessories and packaging should be re-
cycled in an environmentally friendly manner.
Do not dispose of power tools along with
household waste.
Only for EU countries:
According to the European Directive 2012/19/EU on Waste
Electrical and Electronic Equipment and its implementation
into national law, power tools that are no longer usable must
Bosch Power Tools