ARMY TM 9-6115-670-14&P 4-83 4.33.  FUEL DAY TANK ASSEMBLY (SICPS). This task covers: a.  Service b.  Test c.  Repair d.  Replace INITIAL SETUP Shop Equipment, Electrical Repair, Semi trailer Mounted (Item 3, Appendix B) Hand Siphon (Item 22, Appendix B) Gloves, Chemical and Oil Protective (Item 34, Appendix B) Materials/Parts Low Level Cut-off Switch Sealing Compound 88-20595-2 (Item 18, Appendix F) Approved Solvent Equipment Conditions Engine stopped and allowed to cool completely. MASTER ON-OFF switch on APU control unit set to OFF. SERVICE a.  Remove two bolts and flat and lock washers (1, Figure 4-20) and two screws and flat and lock washers (2), and remove radiator support bracket (3). b.  Loosen clamp (18) and remove line (19) between fuel pump assembly and fuel day tank assembly from fitting (16) at fuel intake hole (6). 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 or DEATH. WARNING Avoid fuel contact with skin.  Wear protective gloves, goggles, apron and mask, while disconnecting fuel lines. NOTE When   disconnecting   fuel   lines,   use   a   suitable container to catch fuel from disconnected fuel lines. NOTE Cut  and  remove  tiedown  straps  as  needed  to  remove wiring harness. NOTE When removing, make note of tiedown strap locations. Wiring harness will need to be secured at approximately the same places. CAUTION Take  care not to cut wires or other APU components when removing tiedown straps.