Removing The Final Drive Roller Bearings; Installing The Final Drive Roller Bearings - Yamaha YXR70FX Service Manual

REAR CONSTANT VELOCITY JOINTS, FINAL DRIVE
GEAR AND DRIVE SHAFT
REMOVING THE FINAL DRIVE ROLLER
BEARINGS
1. Remove:
• roller bearing (ring gear) 1
Use a suitable press tool 2 and an appro-
priate support for the main housing.
2. Remove:
• roller bearing (final drive pinion gear) 1
M MMM M MMM M
a. Heat the main housing only to 150 °C
(302 °F).
b. Remove the roller bearing outer race with
an appropriately shaped punch 2.
c. Remove the inner race from the final drive
pinion gear.
TIP:
The removal of the final drive pinion gear roller
bearing is difficult and seldom necessary.
L LLL L LLL L
INSTALLING THE FINAL DRIVE ROLLER
BEARINGS
1. Install:
• roller bearing (final drive pinion gear)
M MMM M MMM M
a. Heat the main housing only to 150 °C
(302 °F).
b. Install the roller bearing outer race using the
proper adapter.
c. Install the inner race onto the drive pinion
gear.
L LLL L LLL L
2. Install:
• roller bearing (ring gear) 1
Use a suitable press tool 2 and a press to
install the above components into the main
housing.
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DRIV
M MMM M M MMM M M MMM M M MMM
L LLL L L LLL L L LLL L L LLL
M MMM M M MMM M M MMM M M MMM
L LLL L L LLL L L LLL L L LLL
M MMM
L LLL
New
M MMM
L LLL