Cleaning Disassembled Parts of Adapter and Drive Axle

TM 10-3930-609-35

3-13. Reassembly of Adapter (fig. 3-1)

3-9. Cleaning Disassembled Parts of Adapter and

Drive Axle

a. Place spacer and both needle roller bearings in

bore of gear cluster.

a. Clean all housings, shafts, gears and shims with

SD and dry with compressed air under moderate

b. Insert tapered end of shaft into case just far

pressure. Be sure to clean parts thoroughly to facilitate

enough to retain washer on end of shaft.

inspection.

c. Place washer on end of shaft.

b. Clean brake assemblies with compressed air

d. Aline gear cluster with shaft and push shaft

under moderate pressure.

through bearings in gear cluster.

c. Clean bearing cups and cones and rollers in SD.

e. As shaft emerges from gear cluster, place front

Do not rotate cones and rollers prior to cleaning. Dry

washer on shaft, then position shaft to full depth in case.

parts with compressed air under moderate pressure.

Note

With case mounted on drive axle and

3-10. Inspecting Parts Removed from Adapter and

with travel motor mounted on case,

Drive Axle

shaft is retained between flanges. If

a. Inspect all bearings for roughness, pitting of

adapter will not be installed

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

immediately, provide retention for

inspect for roughness, place cones and rollers in

shaft.

associated cups and rotate cups slowly with axis of

f. Press front bearing cone and rollers on pinion

bearing vertical. If roughness is detected, check for

gearshaft.

metallic chips or other foreign matter between cones

g. Place packing in groove of spacer, enter spacer

and rollers.

in seal, and position this assembly in bore of case.

b. Inspect all threaded parts and tapped holes for

h. Install retaining ring in internal groove in case.

stripping or other damage.

i. Press cup of rear bearing into recess in case as

c. Check axle shafts for runout in excess of 0.010

far as retaining ring.

inch total indicator reading.

j. Hold input driven gear in position inside case

d. Inspect bearing mounting surfaces on axle

and insert splined end of pinion, gearshaft through gear.

shafts, on differential case halves and on pinion

k. Install spacer and shims (same thickness as

gearshaft for wear as a result of bearing failure. Also

shims removed during disassembly) on end of pinion

check bearing cone bores in adapter case, in axle

gearshaft.

housings and in differential housing for wear as a result

of bearing failure e. Inspect all gears and pinions for

l. Install rear bearing cone and rollers on end of

worn, chipped or rough teeth.

pinion gearshaft and secure with nut and cotterpin.

f. Inspect adapter case, axle housings, differential

m. After final adjustment, install cover gasket and

housing and differential case halves for cracks and

cover with screws and washers.

distortion.

g. Inspect bearing surfaces on cross and bearing

3-14. Reassembly of Drive Axle (fig. 3-2)

bores in spider pinions for scoring and for wear resulting

Note

in loose fit.

If differential parts have been

replaced, checks and adjustments

3-11. Repair of Adapter and Drive Axle Parts

will be required during assembly to

a. Repair slight thread damage with tap or thread

obtain accurate alinement.

chaser. Repair stripped threads in castings by installing

assembly, refer to shim thickness

thread inserts.

noted at disassembly and install

same thickness of shims to provide a

b. Repair slight axle shaft runout by pressing or

starting point from which to make

hammering to bring runout within limits of 0.010 inch

total indicater reading.

adjustments. If no new differential

parts are being used, the original

thickness of shims should restore

3-12. Replacement of Adapter and Drive Axle Parts

axle to original adjustment.

a. Replace all damaged, worn or defective parts

a. Assemble ring gear to differential case half with

that cannot be made serviceable by applying procedures

screws and secure screws with lockwire.

in paragraph 3-11.

b. Place thrust washers and side gears in case

b. Replace all seals with new parts at each

halves.

overhaul.

c. Always replace thrust washers in sets only.

3-5