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 374 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:
from hole of fill plug (Figure 9, Item 3) when oil is cold,
and to hole of fill plug (Figure 9, Item 3) when hot.
r.
Inspect differential drain plug (Figure 9, Item 2)
and fill plug (Figure 9, Item 3) for tightness and signs of
leakage. Tighten drain plug (Figure 9, Item 2)
35
to
60
lb-ft
(47 to 81 N·m) and fill plug
(Figure
9,
Item
3) 80
to
135
lb-ft
(108 to 183 N·m).
1
2
3
I00009DAA
Figure 9.
Differential.
s.
Inspect differential seals for leaks.
t.
On M939A2 series vehicles, replace filter and
install wheel valves (Volume 3, WP
0491).
37
Semiannual
Towing Pintle
and Glad Hand
Connections
Lubricate towing pintle every 3,000 mi (4,800 km) or 3
months, whichever occurs first (Volume 5, WP
0820).
38
Semiannual
Glad Hand and
Air Lines
a.
Inspect emergency and service air and dummy
couplings for serviceability and tightness of seal
(Volume 3, WP
0450).
Replace emergency or
service air or dummy
coupling(s) that are
broken, bent, cracked, or
have seals that leak.
b.
Inspect emergency and service air lines, fittings,
and shutoff valve for security of mounting, tightness of
connections, and damage that could cause air leaks
(Volume 3, WP
0450).
39
Semiannual
Rear Lighting
and Trailer
Receptacle
Inspect rear lights, trailer receptacle, and wiring for
damage. Repair if damaged (Volume 3, WP
0352).
TM 9-2320-272-23-2
0207
0207-39
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