Maintenance And Cleaning - Bosch HSH 10 Instrucciones De Servicio

Inserting (see figure
Clean and grease the tool shank.
The locking pin 2 must be in such a position that
the tool can be inserted. To insert the tool, pull the
locking pin 2 if necessary ( ), and turn through
180° ( ).
Insert the tool shaft fully into the tool holder 3
(with the recess positioned according to the dia-
gram) ( ) and secure using locking pin 2 ( ).
To secure, pull locking pin 2 ( ) and turn through
180° ( ).
Check the locking by pulling on the tool.
Removing (see figure
Pull locking pin 2 ( ), turn through 180° ( ), and
remove the tool ( ).
Initial Operation
The voltage and frequency of the power
source must correspond with the data given
on the nameplate of the machine.
Switching On and Off
To start the machine, push the On/Off switch 5
and keep it pushed.
To switch off the machine, release the On/Off
switch 5.
The machine achieves its full impact
rate/force after approx. one minute.
If at low temperatures and approx.
one minute after switching on, the machine
operates only with a very low impact rate,
switch the machine off. After approx.
two minutes, switch the machine on again.
Repeat this process, if necessary.
Operating Instructions
For the highest possible impact damping, work
only with moderate pressure.
12 • 1 619 929 585 • TMS • 25.02.02
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Sharpening Chisels
Good results are only achieved with sharp chis-
els, therefore sharpen the chiselling tools regu-
lary. This prolongs the service life of the tools and
ensures good working performance.
Forging and hardening
Forging: Heat the chisel to between 850
and 1050 °C (bright red to yellow)
and forge.
Hardening: Heat the chisel to 900 °C (bright
red) and quench in oil, then an-
neal in an oven for approx. one
hour at 320 °C (annealing col-
our = light blue).
Re-sharpening the chiselling tools
Sharpen chiselling tools using grinding wheels
(e. g. ceramic bonded corundum wheel) with a
steady supply of water. Recommended values
are shown in Fig. C. Take care that no annealing
coloration appears on the cutting edges, other-
wise the hardness of the chiselling tools will be
impaired.

Maintenance and Cleaning

Before any work on the machine itself, pull
the mains plug.
For safe and proper working, always keep
the machine and the ventilation slots clean.
Keep the tool holder clean at all times.
If the machine should fail despite the care taken
in manufacturing and testing procedures, repair
should be carried out by an after-sales service
centre for Bosch power tools.
In all correspondence and spare parts orders,
please always include the 10-digit order number
given on the nameplate of the machine.