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 122 of 1015
TM 9-2320-272-24-1
Table 2-1. Unit Preventive Maintenance Checks and Services (Contd).
PROCEDURE
NOT FULLY
MISSION
CAPABLE IF:
12
Semi-
Propeller
a. On front winch and M929/A1/A2 model vehicles only,
annual
shafts, and lubricate transmission PT0 universal joint
universal
every 3,006 mi. (4,800 km) or 3 months, whichever occurs
and slip
first.
joints
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)
b.
On M936/A1/A2 series vehicles, lubricate transfer
case PTO universal joint every 3,000 mi. (4,800 km) or
3 months, whichever occurs first.
NOTE
Lubrication of universal and slip joints will be
accomplished while performing other inspection tasks
in that same area. Tighten, repair, and/or replace
components of universal, slip joints, and propeller
shafts when found to be damaged or worn, as required.
If maintenance is required at a higher level, records
should reflect closest point of reference to ensure
proper identification of components requiring service.
c.
Lubricate universal and slip joints on transmission-
to-transfer case, transfer case-to-differential, differential-
to-differential propeller shafts, and speedometer adapter
every 3,000 mi. (4,800 km) or 3 months, whichever occurs
first.
d.
Inspect universal and slip joints on transmission
PTO, transfer case FTO, and transfer case-to-front axle,
transmission-to-transfer case (para. 3-148), transfer
case-to-differential (para. 3-150 or 3-151), and
differential-to-differential (para. 3-144) propeller shafts
for damaged or worn components.
33
Semi-
Air intake
a.
Inspect vent lines for serviceability and security of
annual
tubes
connections (para. 2-15).
b.
Inspect air intake piping and air cleaner assembly for
condition and security of mounting. Replace defective
components and secure loose mountings (para 3-14).
c.
Test air cleaner indicator for proper operation
(para. 3-12).
2-34
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