March 2022
Maintenance Manual
Programmed Maintenance Procedures
Part No. 1268489GT
S
®
Booms • Z
®
Booms
173
6 Remove the dust cap from the hub. Remove
the cotter pin from the castle nut.
7 Tighten the castle nut to specification, to seat
the bearings.
S-40, S-45, Z-45/25 IC, Z-30/20N, Z-
34/22N, Z-33/18, Z-34/22 IC
35 ft-lbs
47 Nm
Z-34/22 BE, Z-40/23, Z-45/25 DC, Z-45/25
BE
158 ft lbs
214 Nm
8 Loosen the castle nut and re-tighten to
specification.
S-40, S-45, Z-45/25 IC, Z-30/20N, Z-
34/22N, Z-33/18, Z-34/22 IC
8 ft-lbs
11 Nm
Z-34/22 BE, Z-40/23, Z-45/25 DC, Z-45/25
BE
35 ft lbs
47 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.
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 specification, to seat
the bearings.
S-40, S-45, Z-45/25 IC, Z-30/20N, Z-
34/22N, Z-33/18, Z-34/22 IC
35 ft-lbs
47 Nm
Z-34/22 BE, Z-40/23, Z-45/25 DC, Z-45/25
BE
158 ft lbs
214 Nm
21 Loosen the castle nut and re-tighten to
specification.
S-40, S-45, Z-45/25 IC, Z-30/20N, Z-
34/22N, Z-33/18, Z-34/22 IC
8 ft-lbs
11 Nm
Z-34/22 BE, Z-40/23, Z-45/25 DC, Z-45/25
BE
35 ft lbs
47 Nm
22 Install a new cotter pin. Bend the cotter pin to
lock it in.
Note: Always replace the cotter pin with a new one
when removing the castle nut or when checking
the torque of the castle nut.
23 Install the dust cap, then the tire and wheel
assembly. Torque the wheel lug nuts to
specification. Refer to Specifications,
Tires
and Wheels Specifications
.
Summary of Contents for Genie Lift Guard S-40
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