SECTION V: TROUBLESHOOTING
TM 9-2350-256-20
WARNING
Remove all jewelry such as rings, dog
tags, bracelets, etc. If jewelry contacts
a metal surface a direct short may result
in instant heating of tools, damage to
equipment, and injury or death to
personnel.
N Reconnect wire C to APU GEN switch. Disconnect wire
J from APU GEN switch. Place red lead of multimeter
on APU GEN switch terminal and black lead to ground.
Turn MASTER and APU GEN switches ON, and check
for voltage. Turn MASTER and APU GEN switches
OFF. If voltage is present, repair/replace wire J of APU
control box wiring harness (see paragraph 13-7). If
voltage is not present, replace APU GEN switch (see
paragraph 13-7). Reconnect wire J to APU GEN switch.
Install rear panel (7), four lockwashers (6), and four
screws (5) to APU control box (4). Disconnect APU
control box to foot dimmer switch and bulkhead wiring
harness at APU control box.
O Install APU control box (4), four screws (3), four
lockwashers (2), and four nuts (1). Reconnect APU
control box to foot dimmer switch and bulkhead wiring
harness to APU control box. Disconnect bulkhead to
engine wiring harness and starter relay wiring harness
from bulkhead disconnect. Place red lead of multimeter
on pin F of wire J and black lead to ground. Turn
MASTER and APU GEN switches ON and check for
voltage. Turn MASTER and APU GEN switches OFF.
If voltage is present, go to step U. If voltage is not
present, go to step P.
2-153
