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 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the
APU AMM 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the APU ASM 24-23/02
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
_______________
A. If the fault symptom is identified by the CFDS message CHECK GLC APU GCU APU PIN B2D WIRING and the upper ECAM DU warning APU GEN FAULT:
- reset the circuit breaker on the front of the APU GCU.
(1) If the circuit breaker trips:
- Do a check of the wiring for short to ground successively between: . the APU GCU pin B/2D and APU GLC pin B/3, . the APU GCU pin B/2D and APU GCU pins A/5B, A/12D, A/13D, A/6A, A/6C, . the APU GCU pin B/2D and EGIU 2 pin B/6D, . the APU GCU pin A/12C and APU GLC AUX pin X/1, . the APU availability relay (6KD) pin A/1 and APU GCU pin A/13C and EGIU 2 pin B/7C (Ref. ASM 24-23/02).
(a) If the wiring is not correct:
- repair it.
「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 295
201-299, 301-399, Aug 01/05 CES (b) 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). .
B. Make sure that the aircraft electrical circuits 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 296
201-299, 301-399, Aug 01/05 CES
TASK 24-20-00-810-839
Feeder Short Circuits between the APU Generator and APU GLC
1. Possible Causes
_______________
- GCU-APU (1XS)
- GEN-APU (8XS)
- 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
External Power AMM 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power 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
_______________
**ON A/C 001-049, 051-062, 101-105, 151-152, 201-205,
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 on the GLC APU contactor pin A/D 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 APU GLC terminals A/F, A/E, A/D (Ref. ASM 24-23/01).
「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 297
201-299, 301-399, Aug 01/05 CES
(1) If the wiring is not correct:
- repair the above feeder. 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 电源 1(131)
