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.
E
Remove four nuts (6), four lockwashers (7), and four
screws (8) and release APU control box (9) from
mounting bracket. Place a jumper wire from pin N to
socket N. Place red lead of multimeter on pin K of wire
420A 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, go to step L. If
voltage is not present, go to step F.
2-177