- do a visual inspection and make sure that you do not find damage and/or unwanted material in the air intake system and/or on the engine air-intake screen (Ref. AMM TASK 49-16-00-210-001).
- do a visual inspection and make sure that you do not find damage and/or unwanted material in the exhaust system and/or on the turbine exducer blades and stators (Ref. AMM TASK 49-20-00-200-001)
NOTE : THE TORQUE LIMIT IS 29 lbf.ft (3.9318 m.daN). DO NOT TURN THE
____ SHAFT WITH A TORQUE MORE THAN THE LIMIT. A TORQUE MORE THAN THE LIMIT WILL DAMAGE THE COMPONENT.
- turn the manual drive shaft of the starter motor (8KA) in a counterclockwise direction (in the direction of the arrow on the housing) and make sure that:
- you can turn the manual drive shaft of the starter motor equally,
- the APU rotors, bearings and gears do not rub,
- the APU rotors, bearings and gears do not make unusual noise.
NOTE : Turn the manual drive shaft of the starter motor with a torque
____ wrench. Make sure that the drag is 15 lbf.in to 45 lbf.in (0.17 to
0.51 m.daN).
「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 : 001-003, 051-099, 401-499, ∞∞49-00-00∞∞∞∞∞∞∞∞∞∞Page 259
Config-1 Aug 01/05 CES
(a) If you find that the drag of the APU rotors, bearings and gears is too much, they do rub or they make unusual noise, replace the AUXILIARY POWER UNIT (4005KM) (Ref. AMM TASK 49-11-11-000-001) and (Ref. AMM TASK 49-11-11-400-001).
(2) Do the operational test of the APU (Ref. AMM TASK 49-00-00-710-004).
4. Fault Isolation
_______________
**ON A/C 001-003, 051-062,
A. If an APU auto shutdown occurs during the APU START SEQUENCE and the APU SHUTDOWNS report gives the maintenance message:
START TIME EXCEEDED - IGV ACTR P21 OR STARTER MOTOR 8KA OR FCU:
or
NO ACCELERATION - IGV ACTR P21 OR STARTER MOTOR 8KA OR FCU:
- replace the DE-OILING SOLENOID VALVE P15 if the shutdown occured when the APU was cold soaked (Ref. AMM TASK 49-91-49-000-001) and (Ref. AMM TASK 49-91-49-400-001).
(1) If the fault continues:
- replace the STARTER MOTOR (8KA) (Ref. AMM TASK 49-42-51-000-002) and (Ref. AMM TASK 49-42-51-400-002).
(2) If the fault continues:
- replace the FUEL CONTROL UNIT P19 (Ref. AMM TASK 49-32-11-000-001) and (Ref. AMM TASK 49-32-11-400-001).
(3) If the fault continues:
- replace the COMPRESSOR INLET-PRESSURE TRANSDUCER P22 (Ref. AMM TASK 49-51-18-000-001) and (Ref. AMM TASK 49-51-18-400-001).
(4) If the fault continues:
- replace the FLOW DIVIDER AND DRAIN VALVE ASSY (Ref. AMM TASK 49-32-12-000-001) and (Ref. AMM TASK 49-32-12-400-001).
(5) If the fault continues:
- replace the INLET GUIDE-VANE ACTUATOR (103KD) (Ref. AMM TASK 49-23-51-000-002) and (Ref. AMM TASK 49-23-51-400-002).
R **ON A/C 063-099, 401-499,
A. If an APU auto shutdown occurs during the APU START SEQUENCE and the APU SHUTDOWNS report gives the maintenance message:
NO ACCELERATION - IGV ACTUATOR(8014KM)/FCU(8022KM)/START MOT (8KA)
with the LRU TROUBLE SHOOT DATA menu information:
「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 : 001-003, 051-099, 401-499, ∞∞49-00-00∞∞∞∞∞∞∞∞∞∞Page 260
Config-1 Aug 01/05 CES
NO LRU FAULT DETECTED
Fault Code Number: 212
- replace the DE-OILING SOLENOID VALVE (8083KM) if the shutdown occured when the APU was cold soaked (Ref. AMM TASK 49-91-49-000-001) and (Ref. AMM TASK 49-91-49-400-001).
(1) If the fault continues:
- replace the STARTER MOTOR (8KA) (Ref. AMM TASK 49-42-51-000-002) and (Ref. AMM TASK 49-42-51-400-002).
(2) If the fault continues:
- replace the FUEL CONTROL UNIT (8022KM) (Ref. AMM TASK 49-32-11-000-001) and (Ref. AMM TASK 49-32-11-400-001).
(3) If the fault continues:
(only if the fault has occured in flight)
- replace the COMPRESSOR INLET-PRESSURE TRANSDUCER (8048KM) (Ref. AMM TASK 49-51-18-000-001) and (Ref. AMM TASK 49-51-18-400-001).
(4) If the fault continues:
- replace the FLOW DIVIDER AND DRAIN VALVE ASSY (8024KM) (Ref. AMM TASK 49-32-12-000-001) and (Ref. AMM TASK 49-32-12-400-001). 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320 Trouble Shooting Manual 排故手册 机载辅助动力 1(21)
