T00932GB.fm 25
Maintenance
7.4 Assembly instructions
Disassembly
7.4.1 Percussion system
Remove both necked-down (expansion) bolts. Now the tool holder, the
guide cylinder and the percussion piston can be removed.
Attention: The con rod can only be lifted out once the bearing flange
has been disassembled.
7.4.2 Engine hood and tank
First remove the fuel cock lever by pulling it off. Remove the two
securing nuts holding down the air filter and then pull off the filter.
Disconnect the Bowden cable at the carburettor flange and pull off fuel
hose from the carburettor. Then proceed to remove the 4 screws
holding down the fuel tank and the 5 screws of the engine hood halves.
Then pull hood halves off the trunions of the spring mounting arms.
7.4.3 Oscillating suspension units
Unhook springs, remove studs.
7.4.4 Engine
The engine can only be taken off the crankcase if the tank and the
engine hood have been previously taken off. Remove the 3 fastening
screws and pull engine with centrifugal clutch from the crankcase.
7.4.5 Recoil Starter
∗ Detach starter from engine.
∗ Remove hexagon nut, remove elastic washer and guide disk.
∗ Remove torsion spring, catch.
∗ Wind up starter rope anti-clockwise and place return spring under
tension by 1-2 rotations of the rope sheave.
∗ Remove rope sheave and return spring.
Access to the ignition system
Remove raised countersunk head screw, remove fan hood with starter,
remove the ignition armature by loosening the screws. Use extractor
to remove fan wheel.
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