ARMY TM 9-6115-670-14&P 4-77 4.32.  FUEL DAY TANK ASSEMBLY (JTACS and WIN-T). This task covers: a.  Service b.  Test c.  Repair d.  Replace INITIAL SETUP Tools Shop Equipment, Electrical Repair,   Semi trailer Mounted (Item 3, Appendix B) Hand Siphon (Item 22, Appendix B) Gloves, Chemical 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 Low-level Cut-off Switch Sealing Compound 88-20595-2 (Item 18, Appendix F) Approved Solvent SERVICE 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   disconnecting   fuel   lines,   use   a   suitable container to catch fuel from disconnected fuel lines. CAUTION Take  care not to cut wires or other APU components when removing tiedown straps. NOTE Cut and remove tiedown straps as needed to remove wiring harness.