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13
Bosch Power Tools
1 619 929 J13 | (28.7.11)
Clean the tool shank
7
and apply a light coat of grease.
Pull out the lock bolt
5
and turn it 180° in anticlockwise direc-
tion. Allow the lock bolt
5
to latch again.
Insert the tool into the tool holder
8
to the stop. The groove of
the tool shank
7
must face upward as shown in the figure.
Pull out the lock bolt
5
and turn it 180° in clockwise direction.
Allow the lock bolt
5
to latch again.
Check the latching by pulling the tool.
Dust/Chip Extraction
f
Dusts 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 dusts can cause
allergic reactions and/or lead to respiratory infections of
the user or bystanders.
Certain dusts, such as oak or beech dust, are considered
as carcinogenic, especially in connection with wood-treat-
ment additives (chromate, wood preservative). Materials
containing 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
f
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.
Switching On and Off
To
start
the machine, push the On/Off switch
2
to the “
I
” po-
sition.
To
switch off
the machine, push the On/Off switch
2
to the
“
0
” position.
For low temperatures, the machine reaches the full impact
rate only after a certain time.
This start-up time can be shortened by striking the chisel in
the machine against the floor one time.
Working Advice (see figure G)
f
Before any work on the machine itself, pull the mains
plug.
While working, hold the power tool with both hands by the
handle
1
. The handle
1
can move upward and downward
around its axis by approx. 30 mm. This has a damping effect
against vibrations.
For the highest possible impact damping, work only with
moderate pressure.
Sharpening Chisels
Good results are only achieved with sharp chisels; therefore,
sharpen the chiselling tools in good time. This ensures a long
service life of the tools and good working performance.
Re-sharpening
Sharpen chiselling tools using grinding wheels (e. g. ceramic
bonded corundum wheel) with a steady supply of water. Ref-
erence values are shown in the figure. Take care that no an-
nealing coloration appears on the cutting edges; this impairs
the hardness of the chiselling tools.
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
f
Before any work on the machine itself, pull the mains
plug.
f
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 Customer Assistance”
section.
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 Customer Assistance
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
Our customer service representatives can answer your ques-
tions concerning possible applications and adjustment of
products and accessories.
4
60
ca.60
ca.40
60
60
20
OBJ_BUCH-229-005.book Page 13 Thursday, July 28, 2011 11:30 AM
