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 360 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:
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.
d.
Lubricate universal and slip joints on transfer
case-to-front axle propeller shaft adapter every 3,000 mi
(4,800 km) or 3 months, whichever occurs first (Volume
5, WP
0820).
e.
Inspect universal and slip joints on transfer case-
to-front axle propeller shaft for damage or worn
components. Replace worn components (Volume 3,
WP
0402).
CAUTION
Breather and axle around breather must be
wiped clean before servicing to prevent dam-
age to axle from contamination.
f.
Remove, clean, and lubricate axle breathers
every 1,000 mi (1,600 km) or monthly, whichever occurs
first (Volume 3, WP
0405).
g.
Remove differential fill plug (Figure 8, Item 1)
and check oil level in differential (Figure 8, Item 4) every
3,000 mi (4,800 km) or 3 months, whichever occurs
first (Volume 5, WP
0820). Fill if necessary. Level should
be within 1/2 in. (12.7 mm) from hole of plug (Figure 8,
Item 1) when oil is cold, and to the hole of fill plug when
hot.
h.
Inspect differential drain plug (Figure 8, Item 3)
and fill plug (Figure 8, Item 1) for tightness and signs of
leakage. Tighten drain plug (Figure 8, Item 3)
35
to
60
lb-ft
(47
to
81
N·m) and fill plug
(Figure
8,
Item
1) 80 to 135 lb-ft (108 to 183 N·m).
TM 9-2320-272-23-2
0207
0207-25
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