TM-9-2350-311-20-1

HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS

AUGUST 1994

TM-9-2350-311-20-1 - Page 573 of 1275

TM9-2350-311 -20-1

6-7 SECONDARY FUEL FILTER — CONTINUED

a. Removal/Disassembly — Continued

3

4

5

6

7

8

9

Remove filter shell (4), filter element (5), gasket (6), retainer (7), seat (8), seal (9), seat (10), and spring(11 ).

Discard filter element and gasket.

NOTE

Continue removal process only if complete removal of secondary fuel filter assembly

is necessary.

Remove draincock (1 ).

Disconnect secondary fuel filter to cylinder head tube (12).

Disconnect engine-driven fuel pump-to-secondary fuel filter tube (13).

Remove two nuts (14), two Iockwashers (15), two flat washers (1 6), two screws (17), and filter cover (18).

Discard Iockwashers.

Remove two screws (19), two Iockwashers (20), and bracket (21). Discard Iockwashers.

Remove two plugs (22) from filter cover (18).

Do not smoke or use open flame when working on fuel system. An explosion may

occur, causing severe injury or death.

1 Install bracket (21), two new Iockwashers (20), and two screws (19).

2 Install filter cover (18), two flat washers (1 6), two new Iockwashers (15), two screws (17), and two nuts (14).

3 Apply tape to threads of plugs (22). Install plugs in filter cover (18).

4 Connect engine-driven fuel pump-to-secondary fuel filter tube (13).

5 Connect secondary fuel filter-to-cylinder head tube (12).

6-18

b .Assembly/Installation

WARNING