AC AUXILIARY GENERATION (APU GENERATOR, GCU OR GAPCU)
_____________________________________________________ FAULT ISOLATION PROCEDURES
__________________________ R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
TASK 24-23-00-810-801
Failure of the APU Generator Control Unit
1. Possible Causes
_______________
- GCU-APU (1XS)
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 24-41-00-740-002 Operational Test of the Ground power Control Unit
(GPCU)
3. Fault Confirmation
__________________
A. Test Do the operational test of the GPCU (Ref. AMM TASK 24-41-00-740-002).
4. Fault Isolation
_______________
A. If the test gives the maintenance message GCU APU:
- replace the GCU-APU (1XS) (Ref. AMM TASK 24-23-34-000-001) and (Ref. AMM TASK 24-23-34-400-001).
TASK 24-23-00-810-802
Difference in Current between the APU GEN Current Transformer and the APU AC Current Transformer
1. Possible Causes
_______________
- 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 24-41-00-740-002 Operational Test of the Ground power Control Unit
(GPCU)
ASM 24-23/01
3. Fault Confirmation
__________________
A. Test Do the operational test of the GPCU (Ref. AMM TASK 24-41-00-740-002).
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.
A. If this test gives the maintenance message CHECK GCU APU PIN B11D, B13D:
- do a check of the wiring for open or short circuit between the pin B/11D of the APU GCU and the pin A/4 of the AC APU generator current transformer, then between the pin B/13D of the APU GCU and the pin A/1 of the APU generator (Ref. ASM 24-23/01).
(1) If the wiring is not correct:
- repair it.
(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).
B. After the subsequent flight, make sure that the fault does not continue.
「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, ∞∞24-23-00∞∞∞∞∞∞∞∞∞∞Page 202
201-299, 301-399, Aug 01/05 CES TASK 24-23-00-810-803
Failure of the APU GEN found by the ECB
1. Possible Causes
_______________
- wiring between the circuit breaker (23XS) and the pin AC/8 of the ECB (59KD)
- wiring between the circuit breaker (23XS) and the pin A/D of the APU GLC (3XS)
- C/B-APU GEN/EGIU2/115VAC (23XS)
- the wiring between the circuit breaker (23XS) and the pin 9 of the module 29XN
- the wiring between the circuit breaker (23XS) and the pin AC/8 of the ECB (59KD
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 49-00-00-710-001 Self-Test of the ECB (59KD) (GTCP 36-300)
ASM 24-23/01
ASM 49-61/01
3. Fault Confirmation
__________________
A. Test
Do the self test of the ECB (Ref. AMM TASK 49-00-00-710-001).
4. Fault Isolation
_______________
A. Table of the circuit breakers used in this procedure:
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本文链接地址：A320 Trouble Shooting Manual 排故手册 电源 3(7)
