11Series 4144 Powerhead
– Remove the clutch, b 5.2
: Push clutch drum (1) onto
crankshaft stub (arrow) at ignition
side.
– Coat thread of mounting screw
with Loctite, b 9
: Insert screwdriver bit (1) 0812
540 1112 through the clutch drum
(arrow).
– Insert and tighten down the screw
firmly – take care not to damage
the screw head.
– Reassemble all other parts in the
reverse sequence.
– Tightening torques, b 3.3
938RA002 TG
1
938RA003 TG
1
5.2 Clutch
– Block the piston, b 5.1
– Remove the clutch drum, b 5.1
: Position the wrench (1) 4130 890
3600 on the crankshaft stub so
that its pins engage the recesses
(arrows).
: Unscrew the clutch (1).
The clutch has a right-hand thread.
938RA013 TG
1
938RA005 TG
1
: Remove the cup spring (1) and
washer (2).
– Check the individual parts and
replace if necessary.
If the clutch shoes are worn or
damaged, the entire clutch must be
replaced together with the cup
spring and washer – see parts list.
Always replace worn or damaged
clutch springs in pairs.
: Push the carrier (1) out of the
clutch shoes (2).
938RA006 TG
2
1
938RA007 TG
1
2
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