TM 9-2320-260-20
I
7-10. FRONT AXLE SHAFT AND UNIVERSAL JOINT MAINTENANCE (Contd)
b. Cleaning and Inspection
WARNING
Do not use compressed air or dry brush for cleaning when work-
ing where asbestos brake lining dust may accumulate. Remove
asbestos dust and other residue from these areas using a soft
bristle brush or cloth soaked with water. Breathing asbestos
dust may cause injury to personnel.
1. Inspect for worn universal joint (4).
a. Twist splined rods (3) and (5) back and forth to check for free play.
b. Push and pull splined rods (3) and (5) and check for free play.
c. Check the universal joint (4) for roughness, binding, and free play. Replace universal joint (4)
if damaged.
WARNING
Drycleaning solvent is flammable and will not be used near open
flame. Use only in well-ventilated places. Failure to do so may
result in injury to personnel.
CAUTION
Do not clean brake lining or any part of wheel cylinder with
drycleaning solvent. Damage to equipment may result.
2.
Clean all metal parts with drycleaning solvent, then dry with a clean rag. Do not clean brake lining
or any part of the wheel cylinder with drycleaning solvent. Clean old sealer remains from mating
surfaces.
3.
Inspect splined rods (3) and (5) for breaks, cracks, bends, nicks, burrs, and chips. Replace axle (11)
if damaged.
4.
Inspect washer (2) for discoloration or other evidence of overheating and scoring. Replace washer (2)
if discolored or scored.
5.
Inspect spindle (14) for scoring. Replace spindle (14) if scored.
6.
Inspect studs (10) for stripped or crossed threads. Replace studs (10) if damaged.
1. Lubricate universal joint (4) (LO 9-2320-260-12).
2. Install retainer (8), new seal (7), and washer (6) on splined rod (5).
CAUTION
Care must be used when installing axle shafts to prevent darnage
to or displacement of oil seal retainer assembly.
3.
Apply GAA grease to the splines of splined rod (5), then position axle (11) into steering knuckle (9),
and install splined rod (5) within the differential.
4.
Install washer (2) and bearing (1) on splined rod (3).
5.
Apply sealant to reinforcement plate (21) and install reinforcement plate (21) on brake drum (20).
6.
Aline spindle (14) on splined rod (3) and steering knuckle (9).
7.
and nuts (22). Tighten nuts (22) 90-115 lb-ft ( 122-156 Nm). For the extended axles of M820 trucks,
tighten nuts (22) 130-167 lb-ft (176-226 Nm).
WARNING
Brakeshoe springs are under tension. Use brake spring pliers to
replace brakeshoe springs. Other tools may fail to hold spring,
which may cause injury to personnel.
8. Install spring (12) on brakeshoes (20).
9. Install brake line (16) on wheel cylinder (13) with new brake line seals (15) and (17) and screw (18).
7-20
