R A. If the test confirms the results that follow when the APU is started and R the ELEC/APU GEN pushbutton switch (2XS) is pushed on the ELEC panel R 35VU:
R . on the lower ECAM DU, on the ELEC page, in the APU GEN box, the voltage
R is 115VAC and the frequency is 400Hz,
R . the OFF legend of the ELEC/APU GEN pushbutton switch goes off.
R - do a check for 28VDC between pins B/3 and B/5 of the APU GLC (3XS)
R (Ref. ASM 24-23/02).
R (1) If there is 28VDC:
R - replace the GLC-APU (3XS) (Ref. AMM TASK 24-23-55-000-001) and
R (Ref. AMM TASK 24-23-55-400-001).
R (2) If there is no 28VDC:
R - do a check for 28VDC between pins X1 and X2 of the APU GLC
R auxiliary control relay (4XS).
R (a) If there is no 28VDC:
R - replace the P/BSW-ELEC/APU GEN (2XS).
R 1_ If the fault continues:
R - do a check and repair the wiring between pin X1 of the APU
R GLC auxiliary control relay (4XS) and pin AB/10J of the
R GAPCU (24XG).
R a_ If the fault continues:
R - replace the GAPCU (24XG) (Ref. AMM TASK 24-41-34-000-001)
R and (Ref. AMM TASK 24-41-34-400-001).
R (b) If there is 28VDC:
R - do a check of the wiring between pins B/10 and B/12 of the GLC
R 1 (9XU1) and of the GLC 2 (9XU2).
R 1_ If there is no continuity:
R - replace the GLC-1 (9XU1) and/or GLC-2 (9XU2) (Ref. AMM TASK
R 24-22-55-000-001) and (Ref. AMM TASK 24-22-55-400-002).
R 2_ If there is continuity:
R - do a check and repair the wiring from pin B/3 of the APU GLC
R (3XS) to pin AB/10J of the GAPCU (24XG) (Ref. ASM 24-23/02).
R **ON A/C ALL
B. Do the test given in para. 3.
「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 : ALL ∞∞24-23-00∞∞∞∞∞∞∞∞∞∞Page 213
Aug 01/05 CESR **ON A/C 401-499,
R TASK 24-23-00-810-807 R Failure of the APU Generator PMG-Stator R 1. Possible Causes
_______________
R - GAPCU (24XG)
R - GEN-APU (8XS)
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 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)
R NOTE : As the APU GEN was set to OFF because of a true failure, the fault
____ R confirmation is not necessary.
R 4. Fault Isolation
_______________
R A. If the fault symptom is identified by the CFDS message GAPCU (24XG)/ GEN
R APU (8XS) PMG and the upper ECAM-DU warning APU GEN FAULT:
R - replace the GAPCU (24XG) (Ref. AMM TASK 24-41-34-000-001) and (Ref. AMM
R TASK 24-41-34-400-001).
R (1) If the fault continues:
R - replace the GEN-APU (8XS) (Ref. AMM TASK 24-23-51-000-001) and
R (Ref. AMM TASK 24-23-51-400-001).
「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 : 401-499, ∞∞24-23-00∞∞∞∞∞∞∞∞∞∞Page 214
Aug 01/05 CES
R B. Make sure that the aircraft electrical circuits operate correctly in APU
R configuration.
R (1) Energize the aircraft electrical circuits from the APU (Ref. AMM TASK
R 24-41-00-861-002).
R (2) Let the APU generator operate for five minutes to make sure that it
R operates correctly.
R (3) De-energize the aircraft electrical circuits from the APU (Ref. AMM
R TASK 24-41-00-862-002).
R TASK 24-23-00-810-808
R Failure of the Status Circuit of the APU GLC
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本文链接地址：A320 Trouble Shooting Manual 排故手册 电源 3(11)
