TM 9-2350-256-20-1
0057 00
CORRECTIVE ACTION
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.
1.
Open air inlet doors (TM 9-2350-256-10). Disconnect batteries to master relay, voltage regulator,
and slave receptacle wiring harness from regulator. Place red lead of multimeter on socket A of wire
62/2 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 not present, troubleshoot battery circuit. If
voltage is present, go to step 2.
2.
Place red lead of multimeter in pin A of wire 62/2 and black lead to ground. Turn MASTER and
APU GEN switches ON, start APU, and check for voltage. Turn APU and MASTER and APU GEN
switches OFF. If voltage is present, go to step 3. If voltage is not present, replace voltage regulator (see
WP 0154 00).
0057 00-3