Table 2-1. Unit Level Preventive Maintenance Checks and Services HMMWV (Cont'd)
ITEM
NO.
INTERVAL
ITEM TO BE
INSPECTED
PROCEDURES
8
Semi-
60, 100, and a. Inspect alternator and voltage
a. Mounting bolts
Annual
200 Amp
regulator (200 amp only) for condition,
missing or alternator
Alternators
proper installation, and security of
damaged.
mounting.
b. Inspect electrical wiring for
b. Wiring frayed, broken,
broken strands, frayed, cracked or worn or loose connections.
insulation, and loose connections.
c. Deleted
d. Check alternator mounting bolts
d. Any alternator
for security of mounting. Tighten
mounting bolt is loose.
bolts to 40 lb-ft (54 N•m).
9
Semi-
Accelerator
Inspect for bends, excessive play, cracks, Linkage damaged, bent,
Annual
Linkage
and damage that could cause failure.
or cracked.
10
Semi-
Suspension
Annual
and
Steering
System
a. Remove wheel and tire assembly
a. Capscrews or locknuts
(para. 8-3). Check front and rear
are finger or hand
lower ball joint mounting. For M996,
turnable.
M997, M1042, M1037, M1097, M1123,
and “A1” and “A2” series vehicles,
tighten rear lower ball joint to lower
control arm locknuts to 60 lb-ft (81 N•m)
and front to 35 lb-ft (48 N•m). All other
models, tighten front and rear lower
ball joint to lower control arm locknuts
to 35 lb-ft (48 N•m) and ensure cotter
pin is present. Tighten ball joint slotted
nut to 73 lb-ft (99 N•m) and ensure
cotter pin is present.
b. Check front and rear upper ball joint b. Capscrews or locknuts
mounting. Tighten upper ball joint to
are finger or hand
upper control arm locknuts to 21 lb-ft
turnable.
29 (N•m). Tighten upper control arm to
control arm bracket locknuts to 260 lb-ft
(353 N•m) . Tighten ball joint slotted
nut to 65 lb-ft (88 N•m) and ensure cotter
pin is present.
c. Lubricate front and rear upper
ball joints with GAA.
NOTE
If access to locknut is a problem,
remove geared hub from control arm
(para. 6-11).
TM 9-2320-280-20-1
2-10
Change 1
NOT FULLY MISSION
CAPABLE IF:
NOTE
Do not over lubricate ball joints, one
or two shots is adequate.
