- do a repair/cleaning.
(2) If the electrical connections are OK:
- do a check for APU internal damage:
- do a check for contamination of the MAGNETIC-DRAIN PLUG (Ref. AMM TASK 49-91-42-200-004).
NOTE : If the MAGNETIC-DRAIN PLUG contaminated, continue without
____
starting the APU.
- .
- remove the end cap from the STARTER MOTOR (8KA).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 101-105, 107-107, 151-199, ∞∞49-00-81∞∞∞∞∞∞∞∞∞∞Page 298
201-210, Config-1 Aug 01/05 CES
- use a socket and a ratchet on the shaft of the STARTER MOTOR (8KA) to turn the APU counterclockwise.
- make sure that the APU rotates freely.
(a) If rotates the APU freely:
- do a brush wear check (Ref. AMM TASK 49-42-51-200-007), and
- examine the STARTER MOTOR (8KA) for signs of mechanical faults.
1 If the brush wear indicator-pin extends into the transparent
_ cover and/or there are signs of a mechanical fault:
- replace the STARTER MOTOR (8KA) (Ref. AMM TASK 49-42-51-000-004) and (Ref. AMM TASK 49-42-51-400-004).
2 If the brush wear indicator-pin does not extend into the
_ transparent cover and/or there are no signs of a mechanical fault:
- turn the manual drive shaft of the STARTER MOTOR (8KA) in the counterclockwise direction (in the direction of the arrow on the housing) and make sure that the STARTER-CLUTCH MODULE engages correctly.
NOTE : The STARTER-CLUTCH MODULE engages correctly if:
____
- it engages immediately,
- it does not rub,
- it does not make unusual noise.
- turn the manual drive shaft of the STARTER MOTOR (8KA) in the counterclockwise direction (in the direction of the arrow on the housing) and make sure that the STARTER-CLUTCH MODULE engages correctly.
NOTE : The STARTER-CLUTCH MODULE disengages correctly if:
____
- it disengages immediately,
- the manual drive shaft of the STARTER MOTOR (8KA) turns freely,
- it does not rub,
- it does not make unusual noise.
a If the STARTER-CLUTCH MODULE does not engage and/or
_ disengage correctly:
- replace the STARTER-CLUTCH MODULE (Ref. AMM TASK 49-42-52-000-003) and (Ref. AMM TASK 49-42-52-400-003).
b If the STARTER-CLUTCH MODULE engages and disengage
_
correctly:
- replace the OIL-LUBE MODULE (Ref. AMM TASK 49-91-45-000-003) and (Ref. AMM TASK 49-91-45-400-003).
c If the fault continues:
_
- replace the FUEL CONTROL UNIT (8022KM) (Ref. AMM TASK 49-32-11-000-003) and (Ref. AMM TASK 49-32-11-400-003).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 101-105, 151-199, 201-210, ∞∞49-00-81∞∞∞∞∞∞∞∞∞∞Page 299
Config-1 May 01/05 CES (b) If the APU does not rotate freely:
- replace the APU (4005KM) (Ref. AMM TASK 49-11-11-000-004) and (Ref. AMM TASK 49-11-11-400-004).
R **ON A/C 001-049, 101-105, 107-107, 151-199, 201-210,
C. Do the test given in para. 3.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 101-105, 107-107, 151-199, ∞∞49-00-81∞∞∞∞∞∞∞∞∞∞Page A200
201-210, Config-1 Aug 01/05 CES
TASK 49-00-81-810-835
APU AUTO SHUTDOWN - NO ACCELERATION, Fuel-Control Unit Fault (131-9(A))
1. Possible Causes
_______________
- NO LRU FAULT DETECTED
- FUEL RESOLVER PRIMARY SHOWS OPEN CIRCUIT
- FUEL RESOLVER SECONDARY SHOWS OPEN CIRCUIT
- FUEL TORQUE MOTOR SHOWS OPEN CIRCUIT
- FUEL TORQUE MOTOR SHOWS SHORT CIRCUIT
- blockage of the APU inlet
- damage of the IGV actuator linkage and IGV assy
- HOT SECTION DISTRESS
- APU (4005KM)
- STARTER MOTOR (8KA)
- aircraft BATTERIES
- damage/leakage of the APU fuel system
- APU internal damage
- FUEL FILTER
- FUEL CONTROL UNIT (P19)
- FLOW DIVIDER (P13)
- damage of the IGV ACTUATOR linkage and the IGV assembly
- APU INLET PRESSURE TRANSDUCER (P22)
- APU INLET TEMPERATURE SENSOR (P6)
- ECB (59KD)
