(d) Hold thrust screw and tighten lock
(15) If trunnion bearing grease retainer (57) is
to be replaced, coat outer diameter with permatex to
nut (2).
assure a water tight fit, install trunnion bearing (55),
NOTE
install retainer with lip of seal out-lower retainer with lip of
The dial indicator reading must not
seal downupper retainer with lip seal up. This is to
move during this operation. Bend
prevent water from entering trunnion bearings.
one tank of lock nut lock (1) over flat
(16) Install axle shaft oil seal (66) into bearing
side of housing and one tank over flat
retainer (65) lip of seal up. (Grease lips of seal with an
side of the lock nut.
approved grease). Place oil seal and retainer over axle
shaft (64) oil seal away from the axle shaft flange. Press
axle shaft bearing (59) on shaft. Heat bearing collar (58)
until it is blue or about 600. Place on axle shaft with
square shoulder of collar next to the bearing.
Using new gasket and permatex, install axle shaft, oil
seal and bearing into axle housing, aligning splines of
axle shaft into side gear of differential. Secure oil seal
retainer to axle housing with bolts (61) and washers.
Tighten to specified torque. (para 1-4).
(17) Install universal joint (63) to axle shaft
flange with bolts (62), and tighten to specified torque.
bolts (62) and tighten to specified torque. (para 1-4).
(18) Place spindle support (30) over trunnion
bores. Cam shaft bores up. Install top trunnion and air
chamber bracket (4) through top of spindle support and
into trunnion bearing. It is recommended if any of the
bearings of the trunnion parts were replaced, use about
0.015" shims under trunnion flange. Secure flange with
cap screws and washers (27); tighten to specified torque.
Figure 5-24. Thrust screw adjustment (Model 2385).
shims. Secure flange with bolts and washers (47);
(12) Install drop gear (15, fig. 218) on input
tighten to specified torque. (para 1-4).
shaft (16). Install drop gear cover (11) on carrier housing
(19) Install spindle (44) on spindle support (30)
(29). Tighten bolts to specified torque, (para 1-4). Install
with drilled hole in spindle to bottom of spindle support.
front input shaft bearing (13).
Install oil catcher (37) on spindle.
NOTE
(20) Install brake assembly (31) on spindle with
Drop gear is counterbored to prevent
cam shaft hole in brake spider aligned with cam shaft
spline interference. This counterbore
hole in spindle support. Install bolts (35) and washers
must face rear input bearing.
(34). Tighten to specified torque. (para 1-4). Install
brake return spring (32).
(13) Press new oil seal (17) in input shaft
(21) Place thrust washer (52) and bushing (53)
retainer (6) and using new gasket, assemble cap to drop
on cam shaft (46). Enter cam shaft through bore in
gear cover. Tighten to specified torque.
brake spider which is part of spindle support (30). Install
cam shaft retainer (85). Install slack adjuster (84) on
input shaft with No. 2 Permatex and install retaining
cam shaft and secure with retainer ring (86). Connect air
washer (2) and screw (1). Tighten to specified torque.
chamber (6) to slack adjuster with pin and cotter. Adjust
cams so the rollers on the brake shoes are in a neutral
(14) If differential (73, fig. 5-21) was removed,
position by pushing in and turning the hex head
coat axle housing (76) with Permatex No. 2 and install
adjusting nut on slack adjuster.
differential in axle housing; secure with taper dowels,
(22) If hub (40) and drum (36) were
studs (72, 74) and lockwasher. (75). Tighten to
disassembled-align holes in brake drum with holes in
specified torque. (para 1-4)
wheel hub; install bolts (43) and washers
5-49
