Removing The Crankshaft Bearing - Yamaha EK25BMH Service Manual

POWR
OK
CRANK SHAFT
1
2
a
REMOVING THE CRANKSHAFT
BEARING
Upper bearing
1. Remove:
• Upper bearing
Remove the upper bearing with
hands.
2. Remove:
• Collar
Pressure pin B ...............................
90890-02390
Bearing separator .........................
90890-06534
NOTE:
• By forcing the pressure pin B
hydraulic press, remove the bearing.
• When forcing out the crank pin, use care
so that the crankshaft does not fall off.
• The upper bearing and the collar
should always be replaced as a set.
• Once removed, do not reuse the collar.
Always replace it with a new one.
Lower bearing
Remove:
• Lower bearing
Pressure pin B ...............................
90890-02390
Bearing separator .........................
90890-06534
NOTE:
• By forcing the pressure pin B
hydraulic press, remove the bearing.
• When forcing out the crank pin, use care
so that the crankshaft does not fall off.
CAUTION:
• Apply pressure to the pressure pin B
slowly.
• Hold the pressure pin in line with the
press screw spindle.
5-41
E
1
a
2
a
with a
1
a
2
a
with a
a