TM-9-2320-272-10

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; OPERATOR'S MANUAL

SEPTEMBER 2004
CHANGE 2

  TM-9-2320-272-10 - Page 136 of 481

Change 2
2-37
Table 2-3. Preventive Maintenance Checks and Services for Models M939/A1/A2 (Contd).
ITEM
NO.
INTERVAL
ITEM TO
CHECK/
SERVICE
CREWMEMBER
PROCEDURE
NOT FULLY
MISSION
CAPABLE IF:
TM 9-2320-272-10
LOCATION
4
5
Before
Before
Right
Side
Tire(s)
Fifth
Wheel
a.
Visually check right side tire(s)
(2) for presence and under-inflation
(para. 3-11).
b.
If a tire (2) is damaged, replace
with spare (1) (para 3-11).
c.
Check for cupping or worn
tires (2), replace with spare (1)
(para. 3-11).
DRIVER
NOTE
Item 5 applies to M931/A1/A2
and M932/A1/A2 models only.
a.
Inspect fifth wheel (4), locking
mechanism (5), and approach
plates (3) for bends and damage.
b.
Check fifth wheel (4) subframe
rivets (6).
c.
Inspect fifth wheel mounting
brackets for broken welds, cracked
or damaged components, or worn
parts.
a.
M939A1/A2
series vehicles have
any tires missing, or
are unserviceable.
M939 series vehicles
have two or more
tires missing or are
unserviceable.
b.
Tire(s) have
cuts, gouges,
cracks, or leaks
that would cause
tire failure.
c.
Tires have
cupping which
cause erratic
steering, or worn
to within 4/32 in.
(3 mm).
a.
Damage causes
wheel to be
inoperative.
b.
Any loose or
missing rivets.
c.
Fifth wheel
mounting brackets
have broken welds
or damaged
components.
1
3
4
5
2
6


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