ARMY TM 9-2815-260-24 AIR FORCE TO 38G1-126-2 MARINE CORPS TM 09244A/09245A-24 3-40 (1) Loosen connections at all of the fuel injection nozzles. __________ WARNING Escaping diesel or JP fuel under pressure can have sufficient force to penetrate skin.  Place a clear, protective shield around spray zone.  Failure to comply could result in serious injury or death. CAUTION Damage to fuel injection pump, battery, or starter motor can occur if starter motor is used excessively to eliminate air from the fuel system.   Allow at least two minutes for cooling and battery recovery before operating again. (2) Using an assistant, operate starter motor (but do not start engine), refer to TM 9-6115-672-14, and observe connections until fuel, free from air, comes from high-pressure connections. 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. (3) Tighten connections to 20 lb-ft (27 Nm). __________ 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. (4) Thoroughly clean engine and surrounding area to remove spilled diesel fuel. FIGURE 3-16.  FUEL SUPPLY PUMP.