(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 A205
201-299, 301-399, Aug 01/05 CES
TASK 24-20-00-810-842
Failure of the APU Generator PMG
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 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
_______________
A. If the fault symptom is identified by the CFDS message CHECK GCU APU PIN C2 TO C4 GEN APU PIN A12 TO A14 and the upper ECAM DU warning APU GEN FAULT:
- Do a check of the wiring for open circuit or short to ground between respectively the APU GEN pins A/12, A/13, A/14 and the APU GCU pins C/2, C/3, C/4 (Ref. ASM 24-23/01).
(1) 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 A206
201-299, 301-399, Aug 01/05 CES
(2) If the wiring is correct:
- Do an impedance check of the APU generator PMG stator, between successively 2 among the 3 pins A/12, A/13 and A/14, then do a check for open circuit between the APU generator pins A/12, A/13, A/14 and the case.
NOTE : The normal impedance between 2 pins is 0.868 ohms plus or
____
minus 0.156 ohms at 20.C.
(a) If the values are out of the specified limits:
- replace the GEN-APU (8XS) (Ref. AMM TASK 24-23-51-000-001) and (Ref. AMM TASK 24-23-51-400-001).
(b) If the values are in the specified limits:
- 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 A207
201-299, 301-399, Aug 01/05 CES
TASK 24-20-00-810-843
Failure of the APU AC Current Transformer or its Wiring
1. Possible Causes
_______________
- CT-AC, APU GEN (42XS)
- GEN-APU (8XS)
- GCU-APU (1XS)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 24-23-17-000-001 Removal of the AC Current Transformer (42XS)
AMM 24-23-17-400-001 Installation of the AC Current Transformer (42XS)
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本文链接地址：A320 Trouble Shooting Manual 排故手册 电源 1(135)
