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Setion VI. REPAIR INSTRUCTIONS
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TM-10-3930-622-14 Truck Fork Lift; Gasoline Engine Driven; Pneumatic Tires; 6000-lb Capacity; 173-In. Lift Manual
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DIFFERENTIAL ASSEMBLY.
6-14. DRIVE AXLE, LESS DIFFERENTIAL. .
CAUTION
Never use paint removing solvents from
a. Removal and disassembly.
damaged or leaking containers or solvents
that have been exposed to the air for long
(1). Raise front of truck so drive wheels clear
periods of time.
Do not permit paint
floor.
removing solvent to come in contact with
bearings, rubber, insulated wires, or plastic
(2). Remove wheel bolts and draw dual wheel,
materials  as  the  solvent  will  quickly
tires and drum from drive axle.
deteriorate such materials.
NOTE
6-10. SURFACE PREPARATION. Painting previously
painted surfaces necessitates the partial or complete
Removal may be easier if weight of wheel is
removal of' the old paint before a satisfactory covering
supported by a wheeled floor jack or dolly.
can be achieved.
(3).  Disconnect brake lines from wheel cylinders,
a. Use paint removing solvents, abrasives, scrapers
and handbrake cable at propeller shaft.
or wire brushes, as necessary, to remove old paint, dirt,
and rust from the area to be painted. Wash the cleaned
(4). Drain axle lubricant.
area with a paint thinner to remove wax deposits or
abrasive particles.
(5). Remove nuts, washers and tapered bushings,
holding final drive gear case (Figure 6-1) to axle housing.
b.  If paint removal is not necessary, a thorough
Tap studs as necessary to separate, and remove gear
washing and degreasing job must be accomplished
case with attached parts. Axle will stay in housing.
before paint can be applied. This can be performed by
washing surfaces with soap and water, rinsing with paint
(6). Remove and discard gasket. Remove bolts and
thinner, and drying with compressed air.
washers, and axle shaft bearing retainer, and pull out
axle shaft and ball bearing. Take retaining collar from
c.  In the case of new metal surfaces, wash with
within axle housing. If to be serviced, press bearing from
paint thinner and use abrasive blasting to remove
axle shaft.
remaining dirt, oil, casting sand, mill scale, slag, or other
foreign material.  Wash with paint thinner again after
(7). Take cotter pin, nut and washer from end of
blasting.
final drive gearshaft, and remove final drive gear, final
drive gearshaft, bearing cups and cones, and rollers
d.  Apply paint and varnish remover with a good
from gear case.
bristle brush, stroking in one direction only. Brushing out
causes rapid evaporation of the volatile solvents, thus
(8). Remove screws and nuts to wheel adapter, and
decreasing the effectiveness of the remover.
separate gearshift, adapter, oil seals and washer.
Remove wheel bolts, and remove brake drum.
e.  Allow the remover to remain on the painted
surface until the old paint begins to wrinkle and soften.
b. Inspection.
After paint softens scrape or brush off.
(1) Check oil seals for any imperfection.
f. Wash all traces of paint remover wax deposits
from surface with paint thinner.
(2) Examine bearing rollers, cups and cones for
wear. Replace if rollers, are worn, ridged or pitted.
g. Sandblast, wire brush, or sandpaper remaining
paint or rust from the surface being worked. Rinse with
(3) Inspect final drive gear and axle shaft pinion for
paint thinner.
chipping cracks, or scoring.
6-11. NOT APPLICABLE.
c. Assembly and installation. Assemble and install by
reversing a. above, noting the following: (1) Coat wheel
6-12. DRIVE AXLE.
bearings and oil seals with GAA before assembly.
6-13. GENERAL. This assembly is a double reduction
(2). After gear, washer, and nut have been installed
drive axle. Periodic overhaul of the entire assembly is
on final drive shaft, tighten nut until slight drag is felt
not anticipated. Rather, service will generally be required
when turning case. This is wheel bearing adjustment,
either at those elements of the axle outboard of the
with correct final result of no endplay, but slight bearing
differential assembly, or to the differential assembly
drag. If cotter pin will not enter hole with this adjustment,
itself.  The following instructions treat each of these
stake nut into spline slot on shaft.
areas separately.
51

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