R A. If the fault symptom is identified by the CFDS message IDG1 (E1-4000XU)
R SERVO VLV RTN/ GCU1 (1XU1) and the upper ECAM-DU warning GEN 1 FAULT:
R - do an electrical resistance test of the IDG 1 servo valve (Ref. ASM 24-
R 21/01) between:
R . pins B/1 and B/2 (75 ohms plus or minus 6 ohms)
R . pin B/2 and IDG case (do a check for a short circuit of the
R servo-valve return wiring to the IDG case).
R (1) If the resistance values are out of the specified limits:
R - replace the engine 1 IDG (4000XU) (Ref. AMM TASK 24-21-51-000-040)
R and (Ref. AMM TASK 24-21-51-400-040).
R (2) If the resistance values are in the specified limits:
R - do a check of the servo-valve return wiring (Ref. ASM 24-21/01) for
R a short to ground or a short to shield between:
R . pin B/2 of the IDG 1 and pin B/11H of the GCU 1
R . pins B/11H and B/10H of the GCU 1.
R (a) If the wiring is not correct:
R - repair or replace as necessary.
R (b) If the wiring is correct:
R - replace the GCU-1 (1XU1) (Ref. AMM TASK 24-22-34-000-001) and
R (Ref. AMM TASK 24-22-34-400-001).
R 1 If the fault continues:_
R - replace the engine 1 IDG (4000XU) (Ref. AMM TASK 24-21-51-
R 000-040) and (Ref. 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).
「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, ∞∞24-20-00∞∞∞∞∞∞∞∞∞∞Page B288
Aug 01/05 CES
R (5) Do this test:
R -------------------------------------------------------------------------------
R ACTION RESULT
R -------------------------------------------------------------------------------
R On the ECAM control panel: On the lower ECAM DU:
R - get the ELEC page. - the correct electrical parameters of
R the GEN 1 are shown and the AC1
R busbar is supplied by the GEN 1.
R 5. Close-up________
R A. Put the aircraft back to its initial configuration.
R (1) Stop the engine 1 (Ref. AMM TASK 71-00-00-710-028).
R (2) Do the EIS stop procedure
R (Ref. AMM TASK 31-60-00-860-002).
R (3) On the ECAM control panel, set the UPPER DISPLAY and LOWER DISPLAY
R potentiometers to OFF.
R (4) De-energize the aircraft electrical circuits
R (Ref. AMM TASK 24-41-00-862-002).
R TASK 24-20-00-810-917 R Failure of the IDG 2 Servo Valve or the Return Wiring R 1. Possible Causes
_______________
R - IDG (4000XU) R - GCU-2 (1XU2) R - wiring
R 2. Job Set-up Information
______________________
R A. Referenced Information
R -------------------------------------------------------------------------------R REFERENCE DESIGNATION R -------------------------------------------------------------------------------
R AMM 24-21-51-000-040 R R AMM 24-21-51-400-040 R R AMM 24-22-34-000-001 R AMM 24-22-34-400-001 R AMM 24-41-00-740-002 R AMM 24-41-00-861-002 R R AMM 24-41-00-862-002 R R AMM 31-60-00-860-001 R AMM 31-60-00-860-002 R AMM 71-00-00-710-003 R AMM 71-00-00-710-028 R ASM 24-21/01
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本文链接地址：A320 Trouble Shooting Manual 排故手册 电源 2(60)
