CLEANING DISASSEMBLED PARTS

bearing bores in spider pinions for scoring and for wear

(10) Remove bearing cups (80) from axle

resulting in loose fit.

housing (78 and 79) and cone and roller bearings from

6-114. REPAIR. Repair adapter and drive axle parts

case halves (87). The cups (80) will probably have

as follows:

remained in the bore of axle housings during removal

(1) Repair slight thread damage with tap or

operation.

thread chaser. Repair stripped threads in castings by

(11) Punch mark differential case halves (87)

installing thread inserts.

for alignment on assembly. Separate differential case

(2) Repair slight axle shaft runout by pressing

halves by removing screw (88). Washers (90) and side

or hammering to bring runout within limits of 0.01 (-inch

gears (89) will be loose when separating differential

total indicator reading.

case halves. Remove them.

6-115. REPLACEMENT. Replace adapter arid drive

(12) Remove thrust washers (91 ) and spider

axle parts as follows:

pinions (92) from spider (93). Center punch rivet heads

(1) Replace all damaged, worn or defective

(86), drill through heads and press out rivets. Remove

parts that cannot be made serviceable by repair

gear (85) from case (87).

procedures outlined above.

6-112. CLEANING DISASSEMBLED PARTS. Clean

(2) Replace all seals with new parts at each

parts of disassembled adapter and drive axle as follows:

overhaul.

(1) Clean all housings, shafts, gears and

(3) Always replace thrust washers in sets

shims with SD and dry with compressed air under

only.

moderate pressure. Be sure to clean parts thoroughly to

6-116. ADAPTER ASSEMBLY. Refer to figure 7-37

facilitate inspection.

and proceed as follows:

(1) Press single row bearing (21) into recess

(2) Clean brake assemblies with compressed

cage (22). Install race, retaining ring, and pinion

air under moderate pressure.

gearshaft (20). In all double row bearing (19) in cage

and on pinion gearshaft.

(3) Clean bearing cups and cones and rollers

in SD. Do not rotate cones and rollers prior to cleaning.

(2) Install spacers ( 8) arid gaskets ( 17),

Dry parts with compressed air under moderate pressure.

thrust washer (16) and oil seal and retainer (13) in cage.

Retain with six screws (14) and washers ( 5).

6-113. INSPECTION.

Inspect cleaned parts of

adapter and drive axle as follows:

(3) Assemble collar (4) and retaining ring (5)

(1) Inspect all bearings for roughness, pitting

to coupling half (7), and attach coupling half to pinion

of rollers, cones, and cups, cracked cones or cups. To

gearshaft with nut (2).

inspect for roughness, place cones and rollers in

associated cups and rotate cups slowly with axis of

(4) Install sleeve (6) and cushions (I) in

bearing vertical. If roughness is detected, check for

coupling half (7).

metallic chips or other foreign matter between cones

and rollers.

(5) Install bearing cage (22) and gasket (23)

to adapter housing. If adapter is not to be installed

(2) Inspect all threaded parts and tapped

immediately secure a package of gaskets (1 2) totaling

holes for stripping or other damage.

thickness of' gaskets removed to adapter, For use when

it is installed.

(3) Check axle shafts for runout in excess of

6-117. DRIVE-AXLE ASSEMBLY. Refer to figure 7-

0.01 0-inch total indicator reading.

35, except where noted, and proceed as follows:

(1) If differential bearing cones arid rollers

(4) Inspect bearing mounting surfaces on axle

(75) have been removed, press new ones onto trunnions

shafts, on differential case halves and on pinion

of case halves (87).

gearshaft for wear as a result of bearing failure. Also

(2) Rivet bevel gear (85) to case half (87)

check bearing cone bores in adapter case, in axle

with new rivets (86). If a new gear or differential case is

housings and in differential housing for wear as a result

to be used in the assembly, the rivet holes in the gear

of bearing failure.

and case should be checked for alignment and line

reamed if necessary. The gear must be tight on the

(5) Inspect all gears and pinions for worn,

case pilot and riveted flush with the differential case

chipped or rough teeth.

flange. Check with a 0.002-inch feeler gage. Rivets

should not be heated, but should be upset cold. When

(6) Inspect adapter case, axle housings,

the correct rivet and rivet set is used the head being

differential housing and differential case halves for

formed will be at least 1/8 inch larger in diameter than

cracks and distortion.

the rivet hole. The head will then be approximately the

same

(7)

Inspect bearing surfaces on cross and

6-32