Maintenance And Service - Bosch GSH 27 PROFESSIONAL Bedienungsanleitung

Re-sharpening
Sharpen chiselling tools using grinding wheels (e. g.
ceramic bonded corundum wheel) with a steady supply
of water. Reference values are shown in the figure.
Take care that no annealing coloration appears on the
cutting edges; this impairs the hardness of the chisel-
ling tools.
60
20
For forging, heat the chisel to between 850 and
1050 °C (bright red to yellow).
For hardening, heat the chisel to approx. 900 °C and
quench in oil. Then anneal in an oven for approx. one
hour at 320 °C (annealing colour = light blue).

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 tolerances, the machine will automatically cut
out. The machine must be sent to customer service for
maintenance (for address, see the "Service and Cus-
tomer Assistance" section.
If the machine should fail despite the care taken in man-
ufacturing 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 include the 10-digit article number given on the
type plate of the machine.
WARNING! Important instructions for connecting
a new 3-pin plug to the 2-wire cable.
The wires in the cable are coloured according to the fol-
lowing code:
1 619 929 E45 • 9.5.06
4
60
Do not connect the blue or brown wire to the earth ter-
minal of the plug.
Important: If for any reason the moulded plug is
removed from the cable of this power tool, it must be
disposed of safely.
Service and Customer Assistance
60
Exploded views and information on spare parts can be
found under:
www.bosch-pt.com
Great Britain
Robert Bosch Ltd. (B.S.C.)
P.O. Box 98
Broadwater Park
North Orbital Road
Denham-Uxbridge
Middlesex UB 9 5HJ
✆ Service:. . . . . . . . . . . . . . . +44 (0) 18 95 / 83 87 82
✆ Advice line:. . . . . . . . . . . . +44 (0) 18 95 / 83 87 91
Fax: . . . . . . . . . . . . . . . . . . . . +44 (0) 18 95 / 83 87 89
Ireland
Beaver Distribution Ltd.
Greenhills Road
Tallaght-Dublin 24
✆ Service:. . . . . . . . . . . . . . . . .+353 (0)1 / 4 14 94 00
Fax: . . . . . . . . . . . . . . . . . . . . . .+353 (0)1 / 4 59 80 30
Australia and New Zealand
Robert Bosch Australia Pty. Ltd.
RBAU/SPT
1555 Centre Road
P.O. Box 66
3168 Clayton/Victoria
✆ . . . . . . . . . . . . . . . . . . . . . +61 (0)1 / 3 00 30 70 44
Fax: . . . . . . . . . . . . . . . . . . . . +61 (0)1 / 3 00 30 70 45
www.bosch.com.au
Disposal
The machine, accessories and packaging should be
sorted for environmental-friendly recycling.
Only for EC countries:
that are no longer usable must be collected separately
and disposed of in an environmentally correct manner.
Subject to change without notice.
English–4
Do not dispose of power tools into
household waste!
According the European Guideline
2002/96/EC for Waste Electrical and
Electronic Equipment and its implemen-
tation into national right, power tools