April - Genie Z-30/20N Service Manual

Service Manual
Checklist E Procedures
6 Remove the dust cap from the hub. Remove
the cotter pin from the castle nut.
7 Tighten the castle nut to 35 ft-lbs / 47 Nm to
seat the bearings.
8 Loosen the castle nut and re-tighten to 8 ft-lbs
/ 11 Nm.
9 Check for wheel bearing wear by attempting to
move the wheel hub side to side, then up and
down.
Result: If there is no side to side or up and
down movement, continue with step 11 and
grease the wheel bearings.
Result: If there is side to side or up and down
movement, continue to step 11 and replace
the wheel bearings with new ones.
Note: When replacing a wheel bearing, both the
inner and outer bearings, including the pressed-in
races, must be replaced.
10 Remove the dust cap from the hub. Remove
the cotter pin from the castle nut.
11 Remove the castle nut.
12 Pull the hub off of the spindle. The washer and
outer bearing should fall loose from the hub.
13 Place the hub on a flat surface and gently pry
the bearing seal out of the hub. Remove the
rear bearing.
14 Pack both bearings with clean, fresh grease.
44
Z-30/20N • Z-30/20N RJ • Z-34/22 • Z-34/22N
15 Place the large inner bearing into the rear of
the hub.
16 Install a new bearing grease seal into the hub
by pressing it evenly into the hub until it is
flush.
17 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.
18 Place the outer bearing into the hub.
19 Install the washer and castle nut.
20 Tighten the slotted nut to 35 ft-lbs / 47 Nm to
seat the bearings.
21 Loosen the castle nut and re-tighten to 8 ft-lbs
/ 11 Nm.
22 Install a new cotter pin. Bend the cotter pin to
lock it in.
Note: Always use a new cotter pin when installing a
castle nut.
23 Install the dust cap, then the tire and wheel
assembly. Torque the wheel lug nuts to
specification. Refer to Specifications, Machine
Specifications.

April 2016

Part No. 139378