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 58 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:
9
Semi-
Exhaust
b.
Annual
System
Inspect for damaged pipes, loose clamps
and leaking gaskets or seals.
b. Pipes
damaged,
clamps loose, gaskets or
Continued
seals leaking.
c.
Inspect raincap to make sure it operates
c. Raincap does not op-
freely.
erate freely, does not
close when engine is off,
or missing.
10
Semi-
Tires
a.
Annual
Check wheel side rings and lockrings for
dents, bends or breaks that could cause them
to pop off when tires are being inflated. (Refer
to TM 9-2320-279-10 para 3-9 for proper in-
spection procedures).
b
.
Check each tire for nicks, cuts, gouges, ob-
jects sticking out, and wear on tread and side-
walls.
c.
Check each tire for wear using tire depth
gage. Three (3) separate measurements must
be taken. Measure depth across tread at out.-
side edge, center and inside edge at approxi-
mately 12 o’clock, 4 o’clock, and 8 o’clock posi-
tions around outside of tire. Tread depth
should not be less than 4/32 in. (3.2 mm) (front
tandem) 3/32 in. (2.4 mm) (rear tandem).
WARNING
Tire air pressure must be checked properly
or serious injury or death may result.
d.
Insure that each tire is properly inflated
(see tire pressure chart).
(Refer to
TM 9-2320-279-10 para 3-9).
2-10
Change 3
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