R . pins C/9, C/10, C/11 and pin C/7 of the GAPCU.

 「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 221
 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 24-23-00-810-811
R Failure of the APU Generator PMG-Stator or the Exciter Field or its Wiring to R the GAPCU 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 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)
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 CAUTION : BEFORE YOU START THE CHECK OF IDG WIRING THAT INCLUDES CONNECTORS,
_______ R EXAMINE EACH CONNECTOR TO MAKE SURE THAT THERE IS NO OIL IN IT. R IF YOU FIND OIL, CLEAN THE CONNECTOR AND CONNECT IT AGAIN. R IF THE FAILURE CONTINUES, DO THE TROUBLE SHOOTING PROCEDURE AS R GIVEN BELOW.
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 - do a check of the resistance of the APU generator exciter-field between R pins A/9 and A/10 of the APU generator (7.67 ohms plus or minus 0.73 R ohms) (Ref. ASM 24-23/01).
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : 401-499, ∞∞24-23-00∞∞∞∞∞∞∞∞∞∞Page 223
 Aug 01/05 CES

R  (1) If the resistance values are out of the specified limits: 
R  - replace the GEN-APU (8XS) (Ref. AMM TASK 24-23-51-000-001) and 
R  (Ref. AMM TASK 24-23-51-400-001). 
R  (2) If the resistance values are in the specified limits: 
R  - do a check of the resistance of the APU generator PMG-stator (Ref. 
R  ASM 24-23/01) between: 
R  . pins A/12 and A/13 of the APU generator (0.868 ohm plus or minus 
R  0.156 ohm) 
R  . pins A/12 and A/14 of the APU generator (0.868 ohm plus or minus 
R  0.156 ohm) 
R  . pins A/13 and A/14 of the APU generator (0.868 ohm plus or minus 
R  0.156 ohm). 
R  (a) If the resistance values are out of the specified limits: 
R  - replace the GEN-APU (8XS) (Ref. AMM TASK 24-23-51-000-001) and 
R  (Ref. AMM TASK 24-23-51-400-001). 
R  (b) If the resistance values are in the specified limits: 
R  - do a check of the wiring for a short to ground, a short circuit 
R  or an open circuit between: 
R  . pin A/12 of the APU generator and pin C/10 of the GAPCU 
R  . pin A/13 of the APU generator and pin C/11 of the GAPCU 
R  . pin A/14 of the APU generator and pin C/9 of the GAPCU 
R  . pin C/7 and pins C/10, C/11 and C/9 of the GAPCU 
R  . pin A/9 of the APU generator and pin C/12 of the GAPCU 
R  . pin A/10 of the APU generator and pin C/13 of the GAPCU 
R  . pin C/7 and pins C/12, C/13 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  - replace the GAPCU (24XG) (Ref. AMM TASK 24-41-34-000-001) 
　
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