ARMY TM 9-2815-259-24 AIR FORCE TO 38G1-125-2 MARINE CORPS 09249A/09246A-24 3-48 (1)     Thoroughly clean outside surfaces of fuel lines and surrounding area. (2)     Remove capscrews (6, Figure 3-17) and loop clamps (5). (3)     Remove capscrews (16) and loop clamp (15). __________ WARNING Diesel and JP fuels are flammable and toxic to eyes, skin, and respiratory tract.  Skin and eye protection required.  Avoid repeated/prolonged contact.  Provide adequate ventilation.  Failure to comply could result in serious injury or death. CAUTION Fuel lines are fragile and can become twisted and damaged during maintenance.  Always use one wrench to hold one fitting stationary while the other fitting is loosened or tightened.  Failure to comply can cause damage to equipment. NOTES Catch fuel in suitable container. Dispose of fuel in accordance with local ordinances. Disconnect all fuel delivery (pressure) lines from injection pump using a suitable 17 mm deep-well crowsfoot socket. (4)     Disconnect coupling nut (29, Figure 3-17), remove clamp (13) and remove supply line from fuel filter, refer to paragraph 3.12.2. (5)     Disconnect coupling nut (30) on return tube (3). (6)     Disconnect coupling nuts (2) securing tubes (4) to injectors.  Remove tubes, coupling nuts and return fuel line. (7)     Tag and disconnect fuel injection lines (7, 8, 9, and 10) from fuel injectors and fuel injection pump. (8)     Cover all openings to prevent entry of foreign material. b.   Inspection. (1)     Remove fuel lines, refer to step a. (2)     Inspect all fuel lines and seals for wear, kinks, or fitting damage.  Replace as necessary. (3)     Ensure all connections are open.  Replace as necessary. (4)     Inspect all removed o-rings, sealing washers, and fittings. If damaged, replace.