ARMY TM 9-6115-670-14&P
5-86
5.28. WIRING HARNESS J1.
This task covers: a. Inspect
b. Test
c. Repair
d. Replace
INITIAL SETUP
Tools
General Mechanic's Tool Kit
(Item 1, Appendix B)
Shop Equipment, Electrical Repair,
Semitrailer Mounted
(Item 3, Appendix B)
Equipment Conditions
MASTER ON-OFF switch on APU control unit set
to OFF.
Air filter removed (para 4.45.).
Materials/Parts
Wiring Harness J1
Strap, Tiedown, Elect.
(Item 22, Appendix F)
References: Figures FO-1 (SICPS/WIN-T) or FO-7
(JTACS) and FO-4
INSPECT
Visually inspect for damaged wires or components.
TEST
a. Remove four screws (JTACS), or slotted hex-head bolts (SICPS and WIN-T), flat and lock
washers (10, Figure 5-21), and remove the generator housing top cover (11).
b. Remove four screws (JTACS), or slotted hex-head bolts (SICPS and WIN-T), flat and lock
washers (9), and remove generator housing side cover (8) (fuel transfer pump side).
c. Remove two screws, wing nuts and lock washers (JTACS), or four slotted hex-head bolts
(SICPS and WIN-T), flat and lock washers (6), and remove generator housing side cover (5)
(muffler side).
d. Refer to Table 5-3 and use a Multi-meter to test for continuity between pins at connector J1 (4,
Figure 5-21) and corresponding leads (1).
e. If no continuity is found in one or more positions, repair or replace wiring harness.
f. Using a Multi-meter, test for continuity between each pin position and connector shell of J1 (4).
g. If continuity is found in one or more pin positions, repair or replace wiring harness.
WARNING
Ensure that APU DC power supply is disconnected.
Failure to observe this warning could result in severe
injury or DEATH to personnel.
WARNING
Ensure that the APU is turned off and completely de-
energized before opening generator housing.
Failure to observe this warning could result in severe
injury or DEATH to personnel.
NOTE
Disconnect test leads one at a time. Reconnect after
testing.