TM-9-2320-272-10

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; OPERATOR'S MANUAL

SEPTEMBER 2004

CHANGE 2

TM-9-2320-272-10 - Page 171 of 481

2-72

Table 2-3. Preventive Maintenance Checks and Services for Models M939/A1/A2 (Contd).

ITEM

NO.

INTERVAL

ITEM TO

CHECK/

SERVICE

NOT FULLY

MISSION

CAPABLE IF:

TM 9-2320-272-10

LOCATION

CREWMEMBER

PROCEDURE

44

45

46

47

After

After

After

After

Horns

Lights

Mirrors

Brake

System

DRIVER

NOTE

Operation of vehicles with

inoperative horn may violate

AR 385-55.

Check operation of horns if tactical

situation permits.

DRIVER

NOTE

Operation of vehicle with mal-

functioning lights may violate

AR 385-55.

Check operation of headlights, tail-

lights, turn signals, brake, and

blackout lights.

DRIVER

Check for missing or cracked mir-

rors.

DRIVER

a.

With the air system fully

charged at 120 psi (827 kPa),

engine off and parking brake

applied, walk around vehicle and

listen for leaks in the air system,

air reservoirs, lines, and hoses.

b.

Visually check brake chamber

and air reservoirs for obvious dam-

age (para. 3-9 and 3-12).

c.

Visually check hoses and lines

for cracks, breaks, etc.

d.

Check for presence of spring

brake caging bolt and dust cover.

a.

Any reservoir,

line or hose is

leaking (para. 3-9).