- GCU-1 (1XU1)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 24-21-51-000-040
AMM 24-21-51-400-040
AMM 24-22-34-000-001 AMM 24-22-34-400-001 AMM 24-41-00-740-002
R AMM 24-41-00-740-002 AMM 24-41-00-861-002
AMM 24-41-00-862-002
AMM 31-60-00-860-001 AMM 31-60-00-860-002 AMM 71-00-00-710-003 AMM 71-00-00-710-028 ASM 24-21/01
3. Fault Confirmation
__________________
A. Test
(1) Not applicableRemoval of the Integrated Drive Generator -IDG 1(2),(4000XU)Installation of the Integrated Drive Generator -IDG 1(2),(4000XU)Removal of the GCU-1(2) (1XU1, 1XU2)Installation of the GCU-1(2) (1XU1, 1XU2)Operational Test of the Ground power Control Unit (GPCU) Operational Check of GAPCU via CFDSEnergize the Aircraft Electrical Circuits from Engine 1(2)De-energize the Aircraft Electrical Circuits Supplied from the External PowerEIS Start ProcedureEIS Stop ProcedureEngine Automatic StartEngine Shutdown
4. Fault Isolation
_______________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
A. If the fault symptom is identified by the CFDS message CHECK GCU 1 PIN B 14A, B14B IDG 1 PIN B1, B2 WIRING and the upper ECAM DU warning GEN 1 FAULT or if there is no connection of IDG 1 after engine start:
NOTE : After an automatic or manual disconnection of the IDG 1, do a GCU1
____ reset at first engine start. In this case, this trouble shooting procedure is not applicable
- do a check of the wiring between the GCU 1 pins B/14A, B/14B and the IDG 1 pins B/1 and B/2 (Ref. ASM 24-21/01).
(1) If the wiring is not correct:
- repair it.
(2) If the wiring is correct:
- do a check of the resistance of the IDG 1 MPU coil between pin B/1 and pin B/2 (17.5 Ohms plus or minus 3.5 Ohms at 25 deg.C).
(a) If the resistance is out of the specified limits:
- replace the IDG (4000XU) (Ref. AMM TASK 24-21-51-000-040) and (Ref. AMM TASK 24-21-51-400-040).
(b) If the resistance is in the specified limits:
- replace the GCU-1 (1XU1) (Ref. AMM TASK 24-22-34-000-001) and (Ref. AMM TASK 24-22-34-400-001).
NOTE : Do not remove the GCU 1 before you do the other steps of
____
the trouble shooting.
B. Do this operational test to make sure that the system operates correctly.
(1) Aircraft Maintenance Configuration
(a) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(b) Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only) (Ref. AMM TASK 31-60-00-860-001).
(2) On the ELEC panel 35VU:
- push, release and push again the GEN 1 pushbutton switch (3XU1).
(3) Do the operational test of the GPCU (Ref. AMM TASK 24-41-00-740-002).
(4) Start the engine 1 (Ref. AMM TASK 71-00-00-710-003).
「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 : ALL ∞∞24-21-00∞∞∞∞∞∞∞∞∞∞Page 287
Aug 01/05 CES
R **ON A/C 401-499,
R A. If there is no connection of the IDG 1 after engine start:
R NOTE : After an automatic or manual disconnection of the IDG 1, do a GCU1
____ R reset at first engine start. In this case, this trouble shooting R procedure is not applicable
R (1) Replace the IDG (4000XU) (Ref. AMM TASK 24-21-51-000-040) and (Ref.
R AMM TASK 24-21-51-400-040).
R B. Do this operational test to make sure that the system operates correctly.
R (1) Aircraft Maintenance Configuration
R (a) Energize the aircraft electrical circuits
R (Ref. AMM TASK 24-41-00-861-002).
R (b) Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only)
R (Ref. AMM TASK 31-60-00-860-001).
R (2) On the ELEC panel 35VU:
R - push, release and push again the GEN 1 pushbutton switch (3XU1).
R (3) Do the operational test of the GAPCU (Ref. AMM TASK 24-41-00-740-R 002).
R (4) Start the engine 1 (Ref. AMM TASK 71-00-00-710-003).
R **ON A/C ALL
C. Do this test:
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
On the ECAM control panel: On the lower ECAM display unit:
- get the ELEC page. - the correct electrical parameters of GEN 1 are shown and AC 1 busbar is supplied by GEN 1.
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