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 847 of 1417

REMOVAL

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.

CAUTION

Fuel pump exterior must be cleaned before filter cap is removed to prevent foreign particles

from entering fuel pump.

1.

Using a clean, dry cloth, clean fuel pump (Figure 1, Item 7) located on left side of engine (Figure 1, Item 6).

NOTE

Place hand under fuel filter to catch assembly when retaining ring is removed.

2.

Remove retaining ring (Figure 1, Item 5), retainer (Figure 1, Item 3), filter spring (Figure 1, Item 2), and filter

(Figure

1, Item 1) from fuel pump (Figure 1, Item 7).

3.

Remove preformed packing (Figure 1, Item 4) from retainer (Figure 1, Item 3). Discard preformed packing.

4.

Inspect filter (Figure 1, Item 1) for holes or embedded metal particles. If holes or metal particles are found,

discard filter.

TM 9-2320-272-23-2

0260

0260-2