BRP-Rotax
MAINTENANCE MANUAL LINE
LOCKING/LOOSENING OF THE CRANKSHAFT
Locking of the
crankshaft
m WARNING
Risk of burns and scalds. Hot engine parts.
Always allow engine to cool down to ambient temperature before starting work.
Special tool Do not use a substitute part (such a bolt) it may bend and damage crankcase.
For accomplishment the following special tool is required:
Figure 7.4: Special tool
Part number Description
240880
Thread bolt (1)
Instruction The following work procedures are to be accomplished:
Step
Procedure
1
Remove the Allen screw (1) M8x20 and sealing ring from the crankcase half
(cyl. 2/4).
2 Turn crankshaft/propeller shaft until the piston of cyl. no. 1 and no. 2 are in
TDC position and lock crankshaft in this position with the thread bolt (2) part
no. 240880.
NOTE
Turn crankshaft for relief the position indification until the trigger boss
(3) is between the both trigger coil (4, 5) at the position.
The required recess position of the crankshaft can be additionally
verified by looking through the crankcase recess (6) with a flash
light.
3 Screw the thread bolt (2) into the crankcase. While doing so, move the
crankshaft with the propeller until the locking screw engages in the recess
of the crankshaft, and tighten to 10 Nm (89 in.lb).
12–20–00
Page 10
January 01 2020
Effectivity: 912 Series
Rev. 0
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