TM-9-2320-272-24-1
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 1 OF 4
JUNE 1998
TM-9-2320-272-24-1 - Page 127 of 1015
TM 9-2320-272-24-1
Table 2-1. Unit Preventive Maintenance Checks and Services (Contd).
PROCEDURE
NOT FULLY
MISSION
CAPABLE IF:
37
Semi-
Towing
Lubricate towing pintle every 3,000 mi. (4,800 km) or
annual
pintle
3 months, whichever occurs first.
and glad
hand
connections
LUBRICANTS
GAA
Grease, automotive and
artillery (MIL-G-10924)
EXPECTED TEMPERATURES
+40°F TO -15°F
+40°F TO -65°F
(+4°C TO -26°C)
(+4°C TO -54°C)
All temperatures
ABOVE 15°F
(ABOVE -9°C)
38
Semi-
Glad
a.
Inspect emergency and service air and dummy
annual
hand and
couplings for serviceability and tightness of seal. Replace
air lines
emergency or service air or dummy coupling(s) that are
broken, bent, cracked, or have seals that leak (para. 3-208).
b.
Inspect emergency and service air lines, fittings, and
shutoff valves for security of mounting, tightness of
connections, and damage that could cause air leaks
(para. 3-208).
39
Semi-
Rear light-
Inspect rear lights, trailer receptacle, and wiring for
annual
ing and
damage. Repair if damaged (para. 3-131).
trailer
receptacle
40
Semi-
Special
a.
For M927/A1/A2 and M928/A1/A2 vehicles, lubricate
annual
body items
propeller shaft center bearing every 3,000 mi. (4,800 km) or
3 months, whichever occurs first.
EXPECTED TEMPERATURES
LUBRlCANTS
ABOVE 15°F
+40°F TO -15°F
+40°F TO -65°F
(ABOVE -9°C)
(+4°C TO -26°C)
(+4°C TO -54°C)
GAA
All temperatures
Grease, automotive and
artillery (MIL-G-10924)
WARNING
Support weight of dump body on safety braces when
performing maintenance on hoist mechanism with
dump body in raised position.
b.
For M929/A1/A2 and M930/A1/A2 model vehicles:
l.
Lubricate safety latch, lifting arm, cylinder
crosshead, body hinge pins, lifting arm rollers, and trunnion
pins every 3,000 mi. (4,800 km) or 6 months, whichever
occurs first.
2-39
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