TM-9-2320-279-20-1
M977 SERIES, 8x8 HEAVY EXPANDED MOBILITY TACTICAL TRUCKS (HEMTT)
TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; ORGANIZATIONAL MAINTENANCE, VOLUME 1 OF 3
TM-9-2320-279-20-1 - Page 55 of 985
TM 9-2320-279-20-1
Table 2-1. Unit Level Preventive Maintenance Checks and Services
Item
Interval
Item To Be
No.
Inspected
Procedure
Not Mission
Capable If:
3.1
Semi-
Seat Belts
d. Check latch (2) and buckle (5) for wear,
Molded plastic around
Annual
deformation, damage, or broken casing.
buckle/latch is deformed,
Continued
cracked, or broken.
e.
Check latch (2) and buckle (5) for proper
Buckle/latch does not en-
operation.
gage with a solid sounding
“click” and/or does not re-
lease freely when button
is pushed.
f.
Check that retractor (6) is not locked up
Retractor does not operate
and spools out/retracts webbing (1) properly.
properly or retractor cov-
er is cracked/broken.
g.
Check all seat belt mounting hardware
Hardware is loose, miss-
for looseness and other damage.
ing, rusted, corroded, or
damaged.
4
Semi-
Fuel
a.
Inspect fuel filter/water separator assem-
a. Any Class III leak.
Annual
System
bly for dents and cracks that could cause
leaks.
b.
Replace filter element every 6,000 miles
(9,654 km) or semiannually, whichever occurs
first. Replace water separator element if un-
serviceable.
b. Fuel filter clogged.
Change 3
2-7
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