AFTER STARTING APU (CONT)

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.