TM-9-2320-280-20-1

TRUCK, UTILITY: M998 SERIES

TECHNICAL MANUAL; UNIT MAINTENANCE; VOLUME 1 OF 3

JANUARY 1996
TM-9-2320-280-20-1

  TM-9-2320-280-20-1 - Page 110 of 888

Table 2-1. Unit Level Preventive Maintenance Checks and Services HMMWV (Cont'd)
ITEM
NO.
INTERVAL
ITEM TO BE
INSPECTED
PROCEDURES
16
Semi-
Driveline
j.
Tighten halfshaft mounting bolts to
j.
Loose, missing, or
Annual
Compo-
48 lb-ft (65 N
•
m).
broken bolts.
nents (Cont’d)
17
Semi-
Exhaust
Inspect for cracked and loose pipes,
Cracked, loose, or holes in
Annual
Compo-
muffler, and hangers. Check for ex-
pipes or muffler.
nents
haust leaks.
Exhaust leak.
18
Semi-
Frame and
a.
Inspect frame side rails for cracks,
a.
Any loose or missing
Annual
Cross-
breaks, bends, wear, deterioration,
fasteners, cracks, bends,
members
and missing or loose fasteners.
or breaks in frame.
b.
Inspect crossmembers for cracks,
b.
Any loose or missing
breaks, bends, deterioration, and
fasteners. Cracks, bends
loose or missing fasteners.
(bends are defined as a
condition that would
affect vehicle operation)
or breaks in cross-
members.
c.
Inspect for missing, broken, bent,
c.
Any missing, broken,
or loose bumper supports before
bent, or loose bumper
towing a trailer.
supports.
19
Semi-
Tires
Annual
a.
Check tread depth of tires with tire
a.
Tread depth is less
gauge. If tread depth is less than 1/16
than 1/16 in. (1.59 mm).
in. (1.59 mm), replace tire in approx-
imately 400 miles (644 km), bias tires
will wear 1/32 in. (0.79 mm), radial tires
will take approximately 1,300 miles
(2092 km) to wear 1/32 in. (0.79 mm). If
mission will require the vehicle to travel
this distance within a month, replace tire
if it measures 3/32 in. (2.38 mm).
TM 9-2320-280-20-1
Change 2
2-19
NOT FULLY MISSION
CAPABLE IF:
WARNING
• Changing tire pressures or wheel
alignment, out of the
recommended specification, may
adversely affect the vehicle's
handling characteristics. Loss of
vehicle control may result in
serious injury or death and
damage to equipment.
• Radial and bias ply tires should
not be mixed on the same vehicle.
Injury to personnel and damage to
equipment may result.
NOTE
Vehicle must be up on jack stands for
the following checks.


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