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 111 of 1015

TM 9-2320-272-24-1

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

NOT FULLY

ITEM TO

ITEM

INTERVAL

CHECK/

PROCEDURE

MISSION

NO.

CAPABLE IF:

SERVICE

22

Semi-

Front

a.

Inspect axle (4) for security of mounting on springs (7).

annual

springs,

Tighten nuts (5) on spring U-bolts (3) 350-400 lb-ft

propeller

(475-542 N·m).

shaft,

b.

Inspect springs (7) and shackles (8) for cracks,

universal

breaks, and security of mounting. Tighten spring

and slip

shackle mounting nuts (6) 70 lb-ft (95 N·m).

joints,

and axle

CAUTION

Wipe fittings clean before servicing to prevent

damage to shackle pins and bushings.

c.

Lubricate spring U-bolts (3) and shackles (8) every

3,000 mi. (4,800 km) or 6 months, whichever occurs first.

2-23