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 163 of 481

2-64

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

33

After

Fuel

Filter/

Water

Separator

DRIVER

WARNING

• Do not perform fuel

filter/water separator checks,

inspections, or draining

while smoking or near fire,

flames, or sparks. Fuel could

ignite, causing damage to

vehicle, injury, or death.

• Accidental or intentional

introduction of liquid contam-

inants into the environment

is in violation of state, feder-

al, and military regulations.

Refer to Lubrication Order

(para. 3-1) for information

concerning storage, use, and

disposal of these liquids.

Failure to do so may result in

injury or death.

CAUTION

Do not overtighten plastic

valve. Damaged valve will

result in fuel leaks.

NOTE

If fuel is still unclear after

draining one quart (0.946 l),

notify unit maintenance.

a.

Loosen valve (1) on bottom of

fuel filter and allow the water to

drain into a suitable container.

Close the valve when clean fuel is

visible.

b.

Upper valve (2) may have to

be opened for fuel to drain.

c.

Prime fuel system (para. 3-8).

d.

Check for leaks.

d.

Class III

leakage is

evident.