TM-9-2320-272-23-2
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 2 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-2 - Page 352 of 1417
Table
1.
Field Preventive Maintenance Checks and Services - Continued.
ITEM
NO.
INTERVAL
ITEM TO BE
CHECKED OR
SERVICED
PROCEDURE
EQUIPMENT
NOT READY/
AVAILABLE IF:
cause them to pop off. Replace any damaged wheel
(Volume 3, WP
0485).
b.
On M939/A1/A2 series vehicles, inspect wheels
(Figure 3, Item 2) for loose or missing rim nuts
(Figure
3,
Item
3). Tighten rim nuts (Figure 3, Item 3)
210 to 240 lb-ft (285 to 325 N·m). Replace any wheel
(Figure
3,
Item
2) that is broken or has stripped
threads .
c.
Inspect axle drive companion flange for oil leaks.
If oil appears to be leaking from expansion plug
(Figure
3,
Item
4) on axle drive companion flange
(Figure
3,
Item
5), notify your supervisor.
M939
M939A1/A2
1
2
3
4
5
I00003DAA
Figure 3.
Wheel Assembly.
CAUTION
On M939A2 series vehicles, use care not to
damage CTIS air seals when removing axle
components. Failure to do so may result in
further damage to axle and wheel bearings,
in addition to improper operation of CTIS sys-
tem.
NOTE
Lugnuts on left side have left-handed threads
and can be identified by an L, while lugnuts
on right side have right-hand threads, and
can be identified by an R.
d.
Clean, inspect, and lubricate axle shaft and
universal joints (Volume 3, WP
0411).
TM 9-2320-272-23-2
0207
0207-17
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