R 2. Job Set-up Information
______________________
R A. Referenced Information
R -------------------------------------------------------------------------------R REFERENCE DESIGNATION R -------------------------------------------------------------------------------
R AMM 24-23-55-000-001 R AMM 24-23-55-400-001 R AMM 24-41-00-740-002 R AMM 24-41-34-000-001 R R AMM 24-41-34-400-001 R R AMM 24-41-55-000-001 R AMM 24-41-55-400-001 R ASM 24-22/02 R ASM 24-23/02
R 3. Fault Confirmation
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R A. Test
Removal of the APU GLC (3XS)
Installation of the APU GLC (3XS)
Operational Check of GAPCU via CFDS
Removal of the Ground Auxiliary Power Control Unit
(GAPCU) (24XG)
Installation of the Ground Auxiliary Power Control
Unit (GAPCU) (24XG)
Removal of the External Power Contactor (EPC)
Installation of the External Power Contactor (EPC)
R (1) Do the BITE test of the GAPCU (Ref. AMM TASK 24-41-00-740-002).
R (a) If the BITE test gives the message TEST FAILED:
R - do the trouble shooting given in Para 4.A.
R (b) If the BITE test gives the message TEST PASSED:
R - do the trouble shooting given in Para 4.B. R 4. Fault Isolation
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R A. If the BITE test gives the message TEST FAILED:
R - push the line key adjacent to the TEST FAILED message.
R (1) If the maintenance message GAPCU (24XG) comes into view:
R - replace the GAPCU (24XG) (Ref. AMM TASK 24-41-34-000-001) and (Ref.
R AMM TASK 24-41-34-400-001).
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Aug 01/05 CES
R B. If the BITE test gives the message TEST PASSED:
R - do a check of the wiring (Ref. ASM 24-22/02) and (Ref. ASM 24-23/02)
R for an open circuit or a short to ground between:
R . pin 2 of the ELEC/GEN1/OFF/BTC1 SPLY circuit breaker (5XU) and pin 38
R of the diode module 1162VD
R . pin 37 of the diode module 1162VD and pin A/2 of the APU AVAIL relay
R (6KD)
R . pin A/1 of the APU AVAIL relay and pin 28 of the EPC (3XG)
R . pin 26 of the EPC and pin 20 of the APU GLC (3XS)
R . pin 18 of the APU GLC and pin A/6A of the GAPCU.
R (1) If the wiring is not correct:
R - repair or replace as necessary.
R (2) If the wiring is correct:
R - do a check of the auxiliary contacts for correct operation (Ref.
R ASM 24-23/02) between:
R . pins A/1 and A/2 of the APU AVAIL relay (6KD) (normally open)
R . pins 26 and 28 of the EPC (3XG) (normally closed)
R . pins 18 and 20 of the APU GLC (3XS) (normally closed).
R (a) If the auxiliary contacts are not correct:
R - replace the RELAY-APU AVAIL (6KD) or the contactors as
R necessary:
R . for the EPC (3XG) (Ref. AMM TASK 24-41-55-000-001) and (Ref.
R AMM TASK 24-41-55-400-001)
R . for the GLC-APU (3XS) (Ref. AMM TASK 24-23-55-000-001) and
R (Ref. AMM TASK 24-23-55-400-001).
R (b) If the auxiliary contacts are correct:
R - replace the GAPCU (24XG) (Ref. AMM TASK 24-41-34-000-001) and
R (Ref. AMM TASK 24-41-34-400-001).
R C. Do the test given in para. 3.
R TASK 24-23-00-810-809
R Failure of the APU Generator Exciter-Field or its Wiring R 1. Possible Causes
_______________
R - GEN-APU (8XS) R - GAPCU (24XG) R - wiring
R 2. Job Set-up Information
______________________
R A. Referenced Information
R -------------------------------------------------------------------------------R REFERENCE DESIGNATION R -------------------------------------------------------------------------------
R AMM 24-23-51-000-001 R AMM 24-23-51-400-001 R AMM 24-41-00-861-002 R R AMM 24-41-00-862-002 R R AMM 24-41-34-000-001 R R AMM 24-41-34-400-001 R R AMM 49-91-41-200-001 R R AMM 49-91-41-200-002 R R AMM 49-91-41-920-001 R R AMM 49-91-41-920-002 R R AMM 49-91-45-200-002 R ASM 24-23/01
R 3. Fault Confirmation
__________________
R A. Test
R Not applicable.
Removal of the APU Generator 8XS Installation of the APU Generator 8XS Energize the Aircraft Electrical Circuits from the APU De-energize the Aircraft Electrical Circuits Supplied from the APU Removal of the Ground Auxiliary Power Control Unit (GAPCU) (24XG) Installation of the Ground Auxiliary Power Control Unit (GAPCU) (24XG) Remove and discard Alternator Scavenge Filter Element (8069KM) (GTCP 36-300) Inspection and Replacement of Oil Filters (8069KM) and (8076KM) (131-9(A)) Remove and Discard Pressure Oil Filter-Element (8076KM) (APS 3200) Replace AC-Generator Scavenge Filter-Element (8069KM) (APS 3200) Remove and discard Lube Filter Element (GTCP 36-300) 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 3(12)
