TM 1-1520-238-MTF
2-53
PROCEDURE
TROUBLESHOOTING
REFERENCE
AFTER STARTING APU (CONT)
b. Advance PWR levers to IDLE.
Verify nearly matched PWR lever
positioniong at IDLE position and
neither will advance past idle stop
position.
c. RTR BK switch – OFF. Verify RTR
BK caution/warning segment
extinguishes.
d. Advance PWR levers to FLY –
Verify nearly matched PWR lever
positioning at the FLY position.
e. RTR BK switch – BRAKE. Verify
RTR BK caution/warning segment
does not illuminate.
f. PWR levers – Retard to IDLE one
at a time verifying that rotor brake
will not engage with either PWR
lever above IDLE, but will lock
when both PWR levers are at IDLE.
g. RTR BK switch – OFF. Verify RTR
BK caution/warning segment
extinguishes.
h. Advance PWR levers to FLY, then
to LOCKOUT. Verify normal
operation of detent releases and
nearly matched PWR lever
positioning at the LOCKOUT
position.
i. Retard PWR levers to FLY. Verify
normal operation of detents.
