ARMY TM 9-2815-255-24
AIR FORCE TO 38G1-95-2
MARINE CORPS TM 2815-24/4
3-26. FUEL LINES.
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.
Always use two wrenches when removing/installing fittings and/or fuel lines to avoid damage.
Catch fuel in suitable container.
If necessary, remove fuel line (11, FIGURE 3-40) by disconnecting it at fuel injection pump using two wrenches.
Remove capscrew (25) securing clamp (26) and remove fuel line.
If necessary, remove fuel line (9) by disconnecting it at elbows (10 and 24).
Remove two loop clamps (1, FIGURE 3-41).
Remove loop clamp (2).
At cylinder No. 4 fuel injector, loosen coupling nut (3) and disconnect return line to fuel tank. Remove coupling
nut (3) and bushing (4). Discard bushing (4).
Between injectors Nos. 3 and 4, loosen coupling nuts (5) and disconnect return tube (6). Remove nuts (5).
Disconnect other end of tube (6) from fitting (15).
Loosen coupling nuts (8) securing tubes (10) to injectors. Remove tubes (10), coupling nuts (8), rivet (7), and
bushings (9). Discard bushings (9).
Tag and disconnect four fuel injection lines (11, 12, 13, and 14) from fuel injectors and fuel injection pump.
Cap all openings.
Inspect all fuel lines for wear, kinks, or fitting damage. Replace as necessary.
Ensure all connections are open.
Always use two wrenches when Installing fittings and/or fuel lines to avoid damage.
Remove all caps and connect four fuel injection lines (11, 12, 13, and 14, FIGURE 3-41) to fuel injectors and fuel
injection pump as tagged during removal.