Operation Manual

43MS 241 C
Installation
Ignition side half of crankcase
Avoid damage to the crankshaft
stub.
Examine and clean the mating
surfaces of the ignition-side half of
the crankcase (including the
cylinder sealing surface) – the
sealing face must not display any
signs of damage, b 16.
: Orient the crankshaft with the
conical crankshaft stub (arrow)
facing the ignition-side ball
bearing
– Wear protective gloves
– risk of burns
– Heat only the inner race of the
ball bearing to approx. 150 °C
(300 °F)
: Press crankshaft stub fully home
The crankshaft must be fitted
rapidly, as the heat is transmitted to
the crankshaft stub and the inner
bearing race contracts.
2410RA113 TG
If the inner race cannot be heated,
the crankshaft can be drawn into the
crankcase with the assembly tool
5910 007 2201.
– Use disk 5910 893 2103.
: Screw the threaded sleeve (1)
5910 893 2420 onto the
completely screwed in spindle as
far as it will go
– Coat the tapered crankshaft stub
with oil.
.
: Align the crankshaft with the
conical crankshaft stub (arrow)
facing the ignition-side ball
bearing and push it home
5902RA135 TG
1
2410RA113 TG
: Fit the screw sleeve (2) over the
thread of the conical crankshaft
stub (1) and screw it on
: By turning the spindle screw (1),
position disk 5910 893 2103
against the ignition-side half of
the crankcase and orient it so that
the edge number "24" is at the
bottom
: Insert M5x72 screws (2) through
the holes marked "24"
– anti-twist device
: Turn the spindle screw (1)
clockwise
– Draw the ignition-side half of the
crankcase in as far as possible
2410RA114 TG
1
2
24
24
23
23
22
22
24
23
22
2410RA115 TG
2
2
1