Front Bevel Gears
Bearing Preloading Mechanism
1. Bearing Housing
2. Tapered Roller Bearing
A. Before Tightening
B. After Tightening
Clean any dirt and oil off bevel gear teeth with a high-flash
Install the drive gear with the primary shim (1.0 mm, 0.04
in., thickness), and tighten the nut to the specified torque.
Torque - Drive Gear Nut: 265 N·m (27 kgf·m, 195 ft·lb)
Do not stake the head of the nut until both backlash and
tooth contact adjustments are finished.
Install the driven gear assy in the front gear case with the
primary shim (1.0 mm, 0.04 in., thickness), and tighten
the mounting bolts to the specified torque.
Torque - Driven Gear Assy Mounting Bolts: 25 N·m (2.5
kgf·m, 18 ft·lb)
Check backlash during tightening of the mounting bolts,
and stop tightening them immediately if the backlash dis-
appears. Then, change the shim to a thicker one.
C. Under No Preload
D. Initial Clearance
FINAL DRIVE 11-33
5. Tapered Roller Bearing
E. Under Preload
F. No Clearance