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 183 of 481

2-82

Change 2

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

57

58

Weekly

Weekly

Cab

Van

Electrical

System

DRIVER

Visually inspect the cab mounts (1)

for cracks that penetrate the

mounting brackets, breaks that

loosen the cab mounts, and dam-

age or missing cab mounts.

a.

Operate all switches to deter-

mine that all function properly and

that ceiling lights illuminate.

b.

Open doors to determine relia-

bility of blackout switches.

c.

Visually check cables and har-

nesses for breaks or loose connec-

tions.

Cab mounts miss-

ing or welds

cracked through

brackets or bro-

ken loose cab

mounts.

a.

Electrical

system will not

operate.

b.

Blackout

switch is inopera-

tive.