ARMY TM 9-6115-670-14&P 4-88 4.34.  FUEL FEEDER PUMP. This task covers: a. Test b. Replace INITIAL SETUP Tools General Mechanic's Tool Kit (Item 1, Appendix B) Gloves, Chemical and Oil Protective (Item 34, Appendix B) Equipment Conditions Engine stopped and allowed to cool completely. MASTER ON-OFF switch on APU control unit set to OFF. Materials/Parts Fuel Feeder Pump Gasket (Item 4, Appendix J) Personnel Required Two TEST a.  Loosen clamp (6) and remove line (5) from fuel injection pump (7). b.  Place pan under line (5, Figure 4-21) to receive fuel. c.  On control unit, place MASTER ON-OFF switch to ON. d.  Turn and hold the ENGINE START-PREHEAT switch to START. WARNING Ensure that NO IGNITION SOURCE is within 50 feet of the 10 kW APU. The fuel in this APU is highly flammable. Do not smoke. Do not splash fuel on hot components.  Failure  to  heed  this  warning  could result in serious injuries to personnel or DEATH. WARNING Avoid fuel contact with skin.  Wear protective gloves, goggles, apron and mask, while disconnecting fuel lines.  Failure to heed this warning could result in serious injuries to personnel or DEATH. NOTE When removing fuel lines and fittings, have pan available to catch spilled fuel. NOTE Keep line attached to fuel feeder pump.