Terex Genie Z-34/22DC, Service Manual

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April 2016 Service Manual
Steer Axle Components
Part No. 139378 Z-30/20N • Z-30/20N RJ • Z-34/22
• Z-34/22N
91
9-1 Hub and Bearings, 2WD
Models
How t o R emove t he Hub and Bearings How to Remove the Hub and
Bearings
1 Loosen the wheel lug nuts. Do not remove
them.
2 Block the non-steer wheels and place a lifting
jack under the steer axle.
3 Raise the machine. Place blocks under the
drive chassis for support.
4 Remove the lug nuts. Remove the tire and
wheel assembly.
5 Remove the dust cap, cotter pin and castle
nut.
Note: Always use a new cotter pin when installing a
castle nut.
6 Pull the hub off the yoke spindle. The washer
and outer bearing should fall loose from the
hub.
7 Place the hub on a flat surface and gently pry
the grease seal out of the hub. Remove the
inner bearing.
Note: When removing a bearing, always use a new
inner bearing seal.
How t o Ins tall the H ub and Bearings How to Install the Hub and
Bearings
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 Install a new bearing grease seal into the hub
by pressing it evenly into the hub until it is
flush.
Note: Always replace the bearing grease seal when
removing the hub.
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 Fill the hub cavity with clean, fresh grease.
6 Place the outer bearing into the hub.
7 Install the washer and castle nut.
8 Tighten the castle nut to 158 ft-lbs / 214 Nm to
seat the bearings.
Note: Rotate the hub by hand while torquing the
castle nut to make sure the bearings seat properly.