W DOC AIRBUS | TSM A320F

Failure of the Oil Temperature Monitoring of the GCU 2

TASK 24-00-00-810-807-A
Failure of the Oil Temperature Monitoring of the GCU 2

1. Possible Causes
2. Job Set-up Information
 A. Referenced Information
REFERENCE
DESIGNATION
ASM 242101
AMM 24-21-51-000-803
Removal of the Integrated Drive Generator - IDG 1(2)
AMM 24-21-51-400-803
Installation of the Integrated Drive Generator - IDG 1(2)
AMM 24-22-34-000-001
Removal of the GCU-1(2)
AMM 24-22-34-400-001
Installation of the GCU-1(2)
3. Fault Isolation
CAUTION: BEFORE YOU START THE CHECK OF IDG WIRING THAT INCLUDES CONNECTORS, EXAMINE EACH CONNECTOR TO MAKE SURE THAT THERE IS NO CONTAMINATION IN IT. IF YOU FIND CONTAMINATION, CLEAN THE CONNECTOR AND CONNECT IT AGAIN. IF THE FAILURE CONTINUES, DO THE TROUBLE SHOOTING PROCEDURE AS GIVEN BELOW.
Subtask 24-00-00-810-058-D ** ON A/C NOT FOR ALL
A. If the BITE test gives the message TEST FAILED:
  • Push the line key adjacent to the TEST FAILED message.
   (1) If the maintenance message GCU2 (1XU2) comes into view:
   (2) If the fault continues:
  • Do an electrical resistance test of the inlet and outlet oil temperature-sensors of the IDG 2 ASM 242101 between:
    . Pins B/7 and B/8 (100 ohms plus or minus 10 ohms at the ambient temperature od the IDG case)
    . Pins B/8 and B/9 (100 ohms plus or minus 10 ohms at the ambient temperature od the IDG case).
     (a) If the resistance values are out of the specified limits:
     (b) If the resistance values are in the specified limits:
  • Do a check and repair the wiring of the inlet and outlet temperature-sensors ASM 242101 for an open circuit, a short to ground or a short to shield condition between:
    . Pin B/7 of the IDG 2 and pin A/9C of the GCU 2
    . Pin B/8 of the IDG 2 and pin A/9D of the GCU 2
    . Pin B/9 of the IDG 2 and pin A/10C of the GCU 2
    . Pins A/9C and A/10D of the GCU 2
    . Pins A/9D and A/10D of the GCU 2
    . Pins A/10C and A/10D of the GCU 2.
[Rev.8 from Aug 2018] 2026.04.04 04:26:06 UTC
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