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Workman HD Series Page 7 - 23 Chassis
Removal (Fig. 15)
1. Park vehicle on a level surface, shut engine off and
remove key from ignition switch.
2. Jack up and support rear of vehicle (see Jacking Ve-
hicle in Chapter 1 - Safety in this manual). Make sure
that vehicle is supported with jack stands.
3. For wheel hub to be serviced, remove wheel, brake
caliper and brake rotor ( see Brake System Disassembly
in this section).
IMPORTANT: Spindle nu ts are staked (deformed) to
the splined shaft during assembly. Clear away the
deformed area of the nut before removing the nut
from the shaft or damage to the shaft threads will
occur.
4. If rear wheel hub is to be removed, remove spindle
nut that secures splined shaft to wheel hub.
5. Using wheel hub hole to access flange head screws,
remove screws that secure wheel hub to vehicle. Re-
move wheel hub from vehicle.
6. Inspect wheel studs in hub and replace studs if dam -
age is identified. Use press to extract stud(s) from hub.
NOTE: If wheel hub wear or damage exists, replace-
ment of the wheel hub assembly is necessary. Wheel
hubs are not rebuildable.
7. If front wheel hub replacement is necessary, remove
cap screw, washers and lock nut from wheel hub assem-
bly so that these components can be installed on re-
placement hub.
Installation (Fig. 15)
1. If front wheel hub is being replaced, install capscrew,
washers and lock nut to new hub. Torque lock nut from
170 to 180 ft- lb (231 to 244 N- m).
2. If any wheel studs were removed from hub, press
new stud(s) fullyinto hub making sure that stud shoulder
is tight against hub.
3. If rear wheel hub was removed, apply antiseize lubri-
cant to splined shaft.
4. Position wheel hubto vehicle and secure with four (4)
flange head screws. Torque screws from 35 to 40 ft- lb
(48to55N-m).
5. If rear wheel hub was removed, secure wheel hub to
splined shaft with spindle nut. Torque spindle nut from
170 to 180 ft- lb (231 to 244 N- m). Then, stake spindle
nut end into slot in splined shaft.
6. Install brake rotor, brake caliper and wheel (see
Brake System Assembly in this section). Make sure that
wheel lug nuts are properly torqued from 80 to 90 ft- lb
(109 to 122 N- m).
Chassis