ARMY TM 9-2815-256-24
AIR FORCE TO 38G1-96-2
MARINE CORPS TM 2815-24/5
Using two wrenches, loosen fuel line connection at injection nozzle.
Crank engine over with starter (but do not start engine), until fuel free from bubbles flows out of loosened
connection. Tighten connection to 20 ft-lbs (27 Nm).
Repeat procedure for remaining injection nozzles (if necessary) until engine starts or until air has been removed
from fuel system.
3-24. FUEL FILTER/WATER SEPARATOR.
3-24.1. Prefilter and Element Replacement.
Diesel fuel is flammable and toxic to eyes, skin, and respiratory tract. Skin/eye protection required.
Avoid repeated/prolonged contact. Good general ventilation is normally adequate.
Retain any items removed from fuel filter that are not part of the filter for installation purposes.
Catch fuel in suitable container.
Remove cap retaining ring (1, FIGURE 3-58), header (2), volume plug (3), and prefilter (4). Inspect seal (5) for
damage and replace as necessary. Install new prefilter (4), seal (5), volume plug (3), header (2), and cap
retaining ring (1).
Loosen and remove retaining ring (6) and filter element (7) from filter head. Discard packing (8). Install new
filter element (7) with new packing (8) and secure with retaining ring (6).
Always use two wrenches when removing/installing fittings and/or fuel lines to avoid damage.
Disconnect fuel line (9, FIGURE 3-58) from elbow (10) at filter head (15). Cap openings.
Disconnect fuel line (11) from elbow (12) in outlet of filter head. Cap openings.
Remove two capscrews (13) and washers (14) securing filter head (15) to engine block; remove filter assembly.
Remove fuel filter, refer to paragraph 3-24.2.
Remove two elbows (10 and 12, FIGURE 3-58) from filter head (15).
Remove bleed screw (17) and preformed packing (18). Discard preformed packing (18).
Install new preformed packing (18) and bleed screw (17).
Install two elbows (10 and 12) in ports of filter head.