Engine covers
Dismantling of the machine
General
Follow the instructions in this handbook carefully.
Use the tools listed under the heading ”Service tools”
on pages 9-12.
To avoid injury, always allow the machine to cool
down before service.
Always clean all loose dirt carefully from the machine
before servicing is carried out. Wash the parts in par-
affin or a similar solvent. Do not use corrosive acids,
as this may cause damage to certain components.
Empty the fuel tank to prevent petrol from leaking
out.
Empty the oil from the hammer cylinder.
Remove the spark plug.
Spare part numbers are provided in a separate
spare parts list.
Use only Atlas Copco original spare parts.
Dismantling of the covers
Service cover
Dismantle the service cover (1) from the machine.
Pull the ignition cable (2) from the spark plug (4) and
use the spark plug spanner (3) to remove the spark
plug.
Clean the electrodes with a steel brush and adjust
the electrode gap to 0.6-0.7 mm.
Note: To guarantee reliable starting and running, the
spark plug must be checked every week and re-
placed after 50 hammering hours.
Front cover
Remove the four nuts (5), push down the fuel tank,
and lift out the front cover (6).
Examine the cover for damage or cracks, and re
-
place if necessary.
12
Fig. 1 Fig. 2
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