(2) If the wiring is correct:
- replace the GCU-APU (1XS) (Ref. AMM TASK 24-23-34-000-001) and (Ref. AMM TASK 24-23-34-400-001).
(3) If the fault continues:
- replace the GEN-APU (8XS) (Ref. AMM TASK 24-23-51-000-001) and (Ref. AMM TASK 24-23-51-400-001).
**ON A/C 063-099, 106-149, 153-199, 206-299, 301-399,
A. If the fault symptom is identified by the CFDS message CHECK GEN APU FEEDER PIN T1 T2 T3 SHORT TO GROUND and the upper ECAM DU warning APU GEN FAULT:
- disconnect the feeders from the APU generator terminals T/1, T/2, T/3 and N.
- remove the wire connected to the module 29XN pin 9 to the circuit breaker APU GEN EGIU2 (23XS).
- do a check of the wiring for short to ground on the feeders between the APU generator terminals T/1, T/2, T/3 and the module 29XN pins 7, 8, 9 (Ref. ASM 24-23/01).
(1) If the wiring is not correct:
- repair the above feeder.
(2) If the wiring is correct:
- replace the GCU-APU (1XS) (Ref. AMM TASK 24-23-34-000-001) and (Ref. AMM TASK 24-23-34-400-001).
(3) If the fault continues:
- replace the GEN-APU (8XS) (Ref. AMM TASK 24-23-51-000-001) and (Ref. AMM TASK 24-23-51-400-001).
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
B. Make sure that the aircraft electrical circuit operate correctly in APU configuration.
(1) Energize the aircraft electrical circuits from the APU (Ref. AMM TASK 24-41-00-861-002).
(2) De-energize the aircraft electrical circuits from the APU (Ref. AMM TASK 24-41-00-862-002).
「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, 051-099, 101-149, 151-199, ∞∞24-20-00∞∞∞∞∞∞∞∞∞∞Page 298
201-299, 301-399, Aug 01/05 CES
TASK 24-20-00-810-840
Failure of the Exciter Field of the APU Generator
1. Possible Causes
_______________
- GEN-APU (8XS)
- GCU-APU (1XS)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 24-23-34-000-001 Removal of the GCU-APU (1XS) AMM 24-23-34-400-001 Installation of the GCU-APU (1XS) AMM 24-23-51-000-001 Removal of the APU Generator 8XS AMM 24-23-51-400-001 Installation of the APU Generator 8XS AMM 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the
APU AMM 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the APU AMM 49-91-41-200-001 Remove and discard Alternator Scavenge Filter Element (8069KM) (GTCP 36-300) AMM 49-91-41-200-002 Inspection and Replacement of Oil Filters (8069KM) and (8076KM) (131-9(A)) AMM 49-91-41-920-001 Remove and Discard Pressure Oil Filter-Element (8076KM) (APS 3200) AMM 49-91-41-920-002 Replace AC-Generator Scavenge Filter-Element (8069KM)
(APS 3200) AMM 49-91-45-200-002 Remove and discard Lube Filter Element (GTCP 36-300) ASM 24-23/01
3. Fault Confirmation
__________________
A. Test
Not applicable.
NOTE : As the APU GEN was set to OFF because of a true failure, the fault
____
confirmation is not necessary.
4. Fault Isolation
_______________
CAUTION : BEFORE YOU START THE CHECK OF IDG WIRING THAT INCLUDES CONNECTORS,
_______ EXAMINE EACH CONNECTOR TO MAKE SURE THAT THERE IS NO OIL IN IT. IF YOU FIND OIL, CLEAN THE CONNECTOR AND CONNECT IT AGAIN. IF THE FAILURE CONTINUES, DO THE TROUBLE SHOOTING PROCEDURE AS GIVEN BELOW.
「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, 051-099, 101-149, 151-199, ∞∞24-20-00∞∞∞∞∞∞∞∞∞∞Page 299
201-299, 301-399, Aug 01/05 CES **ON A/C 001-049, 101-105, 151-199, 201-210,
A. If the fault symptom is identified by the CFDS message CHECK GCU APU PIN C1 C5 GEN APU PIN A9 A10 and the upper ECAM DU warning APU GEN FAULT:
- do a check of the wiring for an open circuit or a short to ground between: . pin A/9 of the APU GEN (8XS) and pin AC/1 of the APU GCU (1XS) . pin A/10 of the APU GEN and pin AC/5 of the APU GCU (Ref. ASM 24-23/01).
NOTE : Do the check of the oil filters (Ref. AMM TASK 49-91-41-200-002)
____
for metal contamination.
(1) If the wiring is not correct:
- repair it.
(2) If the wiring is correct:
- do the check of the resistance of the exciter field of the APU GEN between pins A/9 and A/10 (7.67 Ohms plus or minus 0.73 Ohms at 25 deg.C) (Ref. ASM 24-23/01).
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本文链接地址：A320 Trouble Shooting Manual 排故手册 电源 1(132)
