CHAPTER 2: VEHICLE MAINTENANCE INSTRUCTIONS
TM 9-2350-256-20
2-19 ELECTRICAL TROUBLESHOOTING-Continued
APU GENERATOR SYSTEM (DUAL VOLTAGE )--Continued
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.
R Reconnect wire 61A to hydraulic pressure switch.
Disconnect wire 61 from hydraulic pressure switch.
Place red lead of multimeter on wire 61 and black
lead to ground. Turn MASTER and APU GEN
switches ON and check for voltage. If voltage is
present, go to step S. If voltage is not present,
replace hydraulic pressure switch (see paragraph 13-
1).
S Disconnect bulkhead to APU, master relay, and rigger's
lights wiring harness from APU engine disconnect.
Place red lead of multimeter in socket F of wire 61 and
black lead to ground. Turn MASTER, APU pressure
and APU GEN switches ON and check for voltage.
Turn MASTER, APU pressure and APU GEN switches
OFF. If voltage is present, notify Direct Support
Maintenance. If voltage is not present, repair/replace
wire 61 of bulkhead to APU, master relay, and rigger's
lights wiring harness (see paragraph 6-75).
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