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 370 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:
32
Semiannual
Propeller Shafts,
and Universal
and Slip Joints
a.
On front winch and M929/A1/A2 model vehicles
only, lubricate transmission PTO universal join every
3,000 mi (4,800
km) or 3 months, whichever occurs
first (Volume 5, WP
0820).
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 (Volume
5, WP
0820).
NOTE
Lubrication of universal and slip joints will be
accomplished while performing other inspec-
tion 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 mainte-
nance 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 (Volume 5, WP
0820).
d.
Inspect universal and slip joints on transmission
PTO, transfer case PTO, and transfer case-to-front axle,
transmission-to-transfer case (Volume 3, WP
0403),
transfer case-to-differential (Volume 3, WP
0401) or
(Volume 3, WP
0400), and differential-to-differential
(Volume 3, WP
0388) propeller shafts for damaged or
worn components.
33
Semiannual
Air Intake Tubes
a.
Inspect vent lines for serviceability and security
of connections (Volume 5, WP
0819).
b.
Inspect air intake piping and air cleaner assembly
for condition and security of mounting. Replace defective
components and secure loose mountings
(TM
9-2320-272-10).
c.
Test air cleaner indicator for proper operation
(TM 9-2320-272-10).
34
Semiannual
Air Reservoir and
Double Check
Valves
a.
Inspect reservoir tanks, double check valves,
and fittings for leaks (Volume 5, WP
0819).
b.
Inspect condition of reservoir tank for damage
that could cause leaks (Volume 5, WP
0819).
TM 9-2320-272-23-2
0207
0207-35
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