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 (8) Engage adapter coupling half (7) with a
washers (40).
pry bar, and turn it until differential has made one
6-122. CLEANING. Clean disassembled parts as
revolution in the forward direction.
follows:
(9) Remove adapter from axle. Examine
(1) Wash all metallic parts in SD and dry with
teeth of ring gear, and compare marks in red lead from
compressed air under moderate pressure. Be sure to
pinion gear contact.
clean parts thoroughly to facilitate inspection.
NOTE
(2) Clean neoprene axle blocks with cloth or
cotton waste moistened with SD.
Ring gear is on left side of pinion when installed.
References to follow will be on this basis.
6-123.
INSPECTION. Inspect parts as follows:
(10) If marks in red lead indicate high, narrow
(1) Inspect neoprene axle blocks for cracking,
tooth contact (pinion too far out), adjust by removing
deformation, splitting and deterioration.
one or more adapter-to axle gaskets to move pinion in
(2) Inspect threaded parts for stripped or
direction, and transfer one or more axle housing-to-
damaged threads.
differential housing gaskets from left side of differential
(3) Inspect tie rods for damaged ends. Also
housing to right side. Repeat above to check results of
check that tie rods are not bent or deformed.
adjustment.
NOTE
(4) Inspect axle, bell crank, spindle pins and
steering arms for cracks and distortion.
Do not change total thickness of side gaskets
(5) Inspect bearings in bell crank and
used; merely change them from one side to the
bearings in steering arms and bearings in axle forging
other as needed, so the differential bearing
for wear.
preload will not be changed.
(11) Lubricate drive axle (figure 5-1).
6-119. STEERING AXLE.
6-124 REPAIR AND REPLACEMENT. Replace parts
removed from steering axle as follows:
(1) If practicable, repair damaged threads
6-120. The steering axle comprises a forged axle, two
with a lap or thread chaser.
steering arms (to which the rear truck wheels mount), a
(2) Replace all parts that are cracked, worn,
bellcrank and axle mounting blocks. The bellcrank
distorted or deteriorated.
connects to the steering gear by means of a drag link.
Conventional tie rods connect the bellcrank to the two
6-125. REASSEMBLY. Reassembly steering axle as
steering arms.
follows:
(1) Install washers (40), bearings (41 ) and
6-121. DISASSEMBLY. Refer to figure 7-34 and
pullcrank (38) on axle (42). Secure with ring (39).
proceed as follows:
(2) Pack bearings (36) with automotive
(1) Remove hub cap (5). Remove tire (II)
grease and install bearings (36), knuckles (29 and 30),
and wheel (12) as an assembly by removing cotter pin
pins (35), washers (33), screws (31) and nuts (32).
(7), nut (8) and washer (9). Carefully pull wheel from
(3) Replace tie rod ends (17 and 20) on tie
steering knuckle (29 or 30) to avoid damaging oil seal
rods (23). Do not tighten clamps (24) until after
(13). The inner bearing cone and rollers (6) may remain
adjustment of wheel alignment.
with the knuckle. The outer bearing cone and rollers
(4) Install tie rod assemblies to connect
and bearing cups (10) will remain in the wheel. Remove
bellcrank to steering knuckles.
bearing cups, cone and rollers.
(5) Replace seals (13) on spindles of steering
(2) Remove seals (13) from steering knuckles
knuckles (29 and 30). Put one bearing cone and roller
(29 and 30). Remove axle blocks (4) from axle (42).
(6) on spindle of knuckle. Press both bearing cups (10)
(3) Remove two tie rod assemblies attached
into wheel and put wheel on spindle, followed by second
with cotter pins (18 and 21) and nuts (19 and 22).
bearing cone, washer (9), nut (8) and cotter pin (7).
(4) Loosen clamps (24) secured with bolt
Replace cap (5). Repeat for second wheel.
(25), nut (26) and washer (27). Unscrew tie rod ends
(17 and 20) from tie rod (23).
6-126. ADJUSTMENT. The following adjustment can
(5) Remove bearings (34) steering knuckles
be made most conveniently before installation of the
(29 and 30) attached with screws (3 1), nuts (32 and
steering axle. However, the adjustment can be made
washers (33).
with the axle installed, as well. Adjust as follows:
(6) Remove bellcrank lever (38) and two
bearings (41) secured with retaining ring (39) and two
6-34
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