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 154 of 481

2-55

ITEM

NO.

INTERVAL

ITEM TO

CHECK/

SERVICE

NOT FULLY

MISSION

CAPABLE IF:

TM 9-2320-272-10

LOCATION

CREWMEMBER

PROCEDURE

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

24

(contd)

After

Cooling

System

(contd)

c.

On M939A2 series vehicles

check air aftercooler for coolant

leakage.

d.

Check for cracking, fraying,

obvious looseness, and breaks on

alternator (3), fan (1), and power

steering pump (2) drivebelts used

on M939/A1 series vehicles, or ser-

pentine drivebelt (4) used on

M939A2 series vehicles.

c.

Any class III

coolant leak is evi-

dent.

d.

Any drivebelt

is missing, broken,

cracked to the belt

fiber, has more

than one crack 1/8

in. (.32 cm) in depth

or 50% of belt thick-

ness, or has frays

more than 2 in.

(5.1 cm) long.

M939A2 SERIES

M939/A1 SERIES