TM 55-2840-254-23
1-41
1-41
WITH POWER LEVER (N1) IN GROUND IDLE POSITION, ENGINE DOES NOT
REACH GROUND IDLE SPEED (Continued)
INSTALL HOSE ASSEMBLY (TASK 2-80).
REPLACE INTERSTAGE AIR-BLEED ACTUA-
CHECK AND ADJUST INTERSTAGE AIR-
TOR (REF. TASK 2-1).
BLEED ACTUATOR (REF. TASK 2-8).
DOES ACTUATOR OPEN AND CLOSE BLEED
FAULT CORRECTED.
CHECK AND ADJUST AIR-BLEED BAND
CLOSURE (REF. TASK 1-108).
DID THIS CORRECT GROUND IDLE SPEED?
FAULT CORRECTED.
ADJUST FUEL CONTROL COMPRESSOR
ROTOR GROUND IDLE SPEED (REF. TASK
DID THIS CORRECT GROUND IDLE SPEED?
PERFORM FOREIGN OBJECT DAMAGE
CHECK FOR SIGNS OF FOREIGN OBJECT
INSPECTION (REF. TASK 1-92).
DAMAGE.
DOES FOREIGN OBJECT DAMAGE EXIST?
REMOVE (REF. TASK 2-19) AND INSPECT
ROTATE COMPRESSOR ROTOR BY HAND
AND LISTEN FOR RUBBING SOUNDS.
(REF. TASK 2-22) COMPRESSOR HOUSING.
DO RUBS EXIST?
ROTOR BLADES. REPAIR OR REPLACE
PARTS AS NECESSARY.
FOLLOW-ON MAINTENANCE:
None
END OF TASK
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