TM-9-2320-272-23-2

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

TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 2 OF 5

SEPTEMBER 2012

TM-9-2320-272-23-2 - Page 771 of 1417

DRAINING

WARNING

Diesel fuel is highly flammable. Do not perform fuel system procedures near open flame.

Failure to comply may result in injury or death to personnel.

NOTE

The replacement procedure for right and left fuel tanks is basically the same. This procedure

covers the left fuel tank.

1.

Loosen filler cap (Figure 1, Item 2) at top of fuel tank (Figure 1, Item 1).

NOTE

•

Have drainage container ready to catch fuel.

•

Use drain pans to retain leaking/draining fluids. Refer to local procedures and plans for

preventing and responding to fluid spills or leaks. Comply with local regulations when

disposing of clean up material and leaked and spilled fluids.

2.

Remove drain plug (Figure 1, Item 4) and flat washer (Figure 1, Item 3) from bottom of fuel tank

(Figure 1, Item 1). Discard flat washer.

3.

After draining is complete, install flat washer (Figure 1, Item 3) and drain plug (Figure 1, Item 4) in fuel tank

(Figure

1,

Item

1).

4.

Tighten fuel filler cap (Figure 1, Item 2) on fuel tank (Figure 1, Item 1).

END OF TASK

REMOVAL

1.

Loosen two nuts on screws (Figure 1, Item 6) on wrecker body (Figure 1, Item 5) and slide stop plate

(Figure

1,

Item

7) upward.

2.

Remove outrigger (Figure 1, Item 8) from body (Figure 1, Item 5).

3.

Remove locknut (Figure 1, Item 14), screw (Figure 1, Item 9), washer (Figure 1, Item 10), ground wire

(Figure

1,

Item

11), and lockwasher (Figure 1, Item 12) from left side frame (Figure 1, Item 13) and double

check valve (Figure 1, Item 15). Discard locknut and lockwasher.

TM 9-2320-272-23-2

0251

0251-2