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 113 of 1015

TM 9-2320-272-24-1

Table 2-1. Unit Preventive Maintenance Checks and Services (Contd).

ITEM

INTERVAL

ITEM TO

CHECK/

PROCEDURE

NO.

SERVICE

NOT FULLY

MISSION

CAPABLE IF:

12

Semi-

Front

NOTE

annual

springs,

propeller

Lubrication of universal and slip joints will be

shaft,

accomplished while performing other inspection

universal

tasks in that same area. Tighten, repair, and/or

and slip

replace components of universal, slip joints, and

joints,

propeller shafts when found to be damaged or worn,

and axle

as required. If maintenance is required at a higher

(Contd)

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.

e. Inspect universal and slip joints on transfer

case-to-front axle propeller shaft for damage or worn

components. Replace worn components (para. 3-149).

CAUTION

Breathers and axle around breathers must be wiped

clean before servicing to prevent damage to axle

from contamination.

f. Remove, clean, and lubricate axle breathers every

1,000 mi. (1,600 km) or monthly, whichever occurs first

(para. 3-154).

LUBRICANTS

OE/HDO

Lubricating oil, internal

combustion engine

(MIL-L-2104)

OEA

Lubricating oil, internal

combustion engine (arctic)

(MIL-L-46167)

EXPECTED TEMPERATURES

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)

OE/HDO 30

OE/HDO 10

OEA

2-25