Service Manual

Rev. B
Workman 4000 SeriesPage 10 – 6Front Wheel Drive (4WD)
IMPORTANT: Bearing cones and bearing cups are
part of a matched bearing set; these parts are not in-
terchangeable. Use one matched bearing set per
axle housing.
2. If a bearing cup was removed from the axle housing,
press new bearing cup(s) into each end of the axle
housing.
3. Pack both bearing cones with Mobile high tempera-
ture grease or equivalent. If the outer bearing cone was
removed from the stub axle, slide wide end of new bear-
ing cone onto the shaft of the stub axle and press cone
onto the shaft (Fig. 4).
4. Position front brake assembly (19) to the axle hous-
ing. Secure brake assembly to the axle housing with four
cap screws (8) and lock washers (9).
5. Insert shaft of the stub axle into the axle housing.
Slide small spacer onto the shaft, then slide wheel bear-
ing spacer onto the shaft.
6. Slide inner bearing cone, with its narrow end first,
onto the shaft of the stub axle.
7. Apply No. 2 general purpose grease to the splines of
the CV joint.
8. Position stub axle/axle housing assembly to the CV
joint. Insert splined end of the CV joint into the stub axle.
9. Install axle housing as follows (Fig. 2):
IMPORTANT: Make sure cotter pin has a 0.002 inch
(0.05 mm) clearance from the CV joint boot.
A. Connect lower ball joint to the axle housing.
Install slotted hex nut and torque from 80 to 90 ft–lb
(108 to 122 N–m). If necessary to install cotter pin,
tighten nut further and secure assembly with cotter
pin.
B. Install cap screw into axle housing and secure
with lock nut.
C. Connect upper ball joint to the axle housing.
Install slotted hex nut and torque from 80 to 90 ft–lb
(108 to 122 N–m). If necessary to install cotter pin,
tighten nut further and secure assembly with cotter
pin.
10.Connect tie rod end to the axle housing with slotted
hex nut. Torque slotted hex nut from 45 to 55 ft–lb (61 to
74 N–m). If necessary to install cotter pin, tighten nut fur-
ther and secure assembly with cotter pin..
IMPORTANT:Hex flange nut (22) should be replaced
whenever it is removed.
11. Apply Loctite #271 (or equivalent) to the threads of
the CV joint. Install hardened washer (21) and hex
flange nut (22) to the CV joint threads. Torque flange nut
from 170 to 200 ft–lb (230 to 271 N–m).
12.Secure brake hose bracket (13) to the axle housing
with cap screw and flat washer.
NOTE: Make sure access hole on both the brake drum
and stub axle align when installed.
13.Install brake drum to stub axle.
14.Adjust brake shoes:
A. Align access hole in brake drum with adjuster bolt
on adjuster assembly.
B. Rotate adjusting bolt to increase adjuster length
until brake shoes contact brake drum.
C. Back off adjuster until drum rotates freely.
15.Secure wheel to the brake drum with five wheel nuts.
Lower front wheel to the ground. Torque wheel nuts from
45 to 65 ft–lb (61 to 88 N–m).
Figure 4
STUB AXLE
PRESS BEARING
CONE TO HERE.