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.
M Reconnect bulkhead to APU, master relay, and rigger's
lights wiring harness to bulkhead disconnect. Open
center-front air inlet doors (TM 9- 2350-256-10).
Disconnect bulkhead to APU, master relay, and rigger's
lights wiring harness from APU engine disconnect. Place
red lead of multimeter on pin C of wire 493 and black
lead to ground. Turn MASTER and APU FUEL
SHUTOFF switches ON and check for voltage. Turn
MASTER and APU FUEL SHUTOFF switches OFF. If
voltage is present, notify Direct Support Maintenance. If
voltage is not present, repair/replace wire 493 of
bulkhead to APU, master relay, and rigger's lights wiring
harness (see paragraph 6-75 for dual voltage; 6-76 for
single voltage).
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