TM 55-1520-240-23-6
7-16.1
FLUSHING SERIOUSLY CONTAMINATED FLIGHT CONTROL OR UTILITY HYDRAULIC
SYSTEMS
(Continued)
7-16.1
APU MOTOR PUMP
91.
In ramp area, disconnect exciter cable (48) from
spark plug (49) of APU (50).
92.
Close APU fuel shut-off valve (51).
93.
Set APU switch (52) to RUN. HOLD at RUN for a
maximum of 15 seconds, then set switch to OFF.
7-119