Hub And Bearings, 2Wd Models - Genie Z80/60 Service Manual

Section 4 • Repair Procedures
AXLE COMPONENTS
10-2

Hub and Bearings, 2WD Models

How to Remove the
Hub and Bearings, 2WD Models
1 Loosen the wheel lug nuts. Do not remove
them.
2 Block the non-steer wheels.
3 Center a lifting jack with a minimum capacity of
25,000 lbs / 12000 kg under the drive chassis
between the steer wheels.
4 Raise the machine 6 inches / 15 cm and place
blocks under the chassis for support.
Crushing hazard. The machine
may fall if not properly supported.
5 Remove the lug nuts. Remove the tire and
wheel assembly.
6 Remove the dust cap, cotter pin and
castle nut.
Note: Always use a new cotter pin when installing
a castle nut.
7 Pull the hub off the spindle. The washer and
outer bearing should fall loose from the hub.
8 Place the hub on a flat surface and gently pry
the bearing seal out of the hub.
9 Remove the rear bearing.
4 - 114
How to Install the Hub and
Bearings, 2WD Models
Note: When replacing a wheel bearing, both the
inner and outer bearings including the pressed-in
races must be replaced.
1 Be sure that both bearings are packed
with clean, fresh grease.
2 Place the large inner bearing into the rear
of the hub.
3 Press the bearing seal evenly into the hub
until it is flush.
4 Slide the hub onto the yoke spindle.
Component damage hazard. Do
not apply excessive force or
damage to the lip of the seal may
occur.
5 Place the outer bearing into the hub.
6 Install the washer and castle nut.
7 Tighten the castle nut to 158 ft-lbs / 214 Nm to
seat the bearing.
Note: Rotate the hub by hand while torquing the
castle nut to make sure the bearings seat properly.
8 Loosen the castle nut one turn, and then torque
to 35 ft-lbs / 47 Nm.
9 Install a new cotter pin. Bend the cotter pin
to secure the castle nut.
Note: Always use a new cotter pin when installing
a castle nut.
10 Install the dust cap, then the tire and wheel
assembly. Torque the wheel lug nuts to
specification. Refer to Section 2, Specifications.
Z-80/60
June 2011
REV B
Part No. 88619