2-254
Change 4
TM 9-2350-267-20
A Remove APU access plate (p 13-12.3). Disconnect fuel return line. Set
MASTER switch ON. Set APU FUEL SHUTOFF switch ON. Place suitable
container under engine-mounted disconnect fitting. Use screwdriver to push
open disconnect valve observe fuel flow. If fuel flow is observed, go to step
B. If fuel does not flow, go to Step E.
B
Turn APU FUEL SHUT OFF switch ON and OFF while observing fuel
solenoid plunger. Plunger should pull up when switch is turned ON, and move
down when switch is turned OFF. If solenoid functions properly, notify
Support Maintenance to troubleshoot APU. If solenoid does not function
properly, go to step C.