Final Gear Case and Oil
•
Replace the oil seal with a new one.
•
Drive the oil seal [A] using the bearing driver set [B].
Special Tool - Bearing Driver Set: 57001–1129 [C]
•
Reinstall the above removed parts.
○
Stake [A] the pinion gear nut with a punch.
When staking the nut, be careful not to apply shock
to the pinion gear and its bearing. Such a shock
could damage the pinion gear and/or bearing.
Pinion Gear Bearing Preload Adjustment
Preload Measurement:
•
Check and adjust the bearing preload in the following
case.
○
When any of the parts listed below are replaced with new
ones.
Tapered roller bearings
Bevel gears
Bearing housing
Pinion gear joint
○
When the pinion gear nut is loosened, even if the purpose
is not to replace the parts.
•
Assemble the pinion gear bearing housing, and tighten
the pinion gear nut to the specified torque. Oil seal instal-
lation is not required until the correct bearing preload is
obtained.
To start with, choose a shim or shims so that the
bearings are just SNUG with NO play but also with
NO preload.
Any over-preload on the bearings could damage the
bearings.
CAUTION
CAUTION
FINAL DRIVE 11-15
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