AMM 32-45-00-710-001 Operational Check of the Parking Brake System Using
 Individual Motors in Turn
 AMM 32-45-16-000-001 Removal of the Dual Shuttle Valve 2578GM
 AMM 32-45-16-400-001 Installation of the Dual Shuttle Valve 2578GM

 3. Fault Confirmation
__________________
 A. Test
 (1) Do the operational test of the parking brake system (Ref. AMM TASK 32-45-00-710-001).
 4. Fault Isolation
_______________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
 A. If the brake Yellow pistons do not operate on one landing gear:
 - replace the DUAL SHUTTLE VALVE-BRK YELLOW PRESS (2578GM) (Ref. AMM TASK 32-45-16-000-001) and (Ref. AMM TASK 32-45-16-400-001).
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞32-45-00∞∞∞∞∞∞∞∞∞∞Page 211
 Aug 01/05 CES

R  **ON A/C 401-499, 
R  A. If the brake Yellow pistons do not operate on one landing gear: 
R  - replace the related MANIFOLD-ALTN BRK, L (2853GM) or MANIFOLD-ALTN BRK, 
R  R (2852GM) (Ref. AMM TASK 32-43-32-000-001) (Ref. AMM TASK 32-43-32-
R  400-001).

R **ON A/C ALL
 TASK 32-45-00-810-803
 Parking Brake Indicator Light Inoperative on the N/W Steering Deactivation
 Electrical Box
 1. Possible Causes
_______________
 - ELEC BOX-N/W STEERING,DEACTIVATION (5GC)
 - CTL VALVE-PARK BRK,ELEC. (72GG) R - CTL VALVE-PARK BRK, ELEC (102GG)
 - wiring from the N/W steering deactivation electrical box (5GC) pin A/B to the first terminal block

 - wiring from the parking brake electrical control valve (72GG) pin A/D to

 the ground terminal R - wiring from the parking brake electrical control valve (72GG) to the N/W R steering deactivation electrical box (5GC) pin A/E to pin A/A R - LAMP-28V 40MA
 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
AMM 32-45-00-710-001 Operational Check of the Parking Brake System Using Individual Motors in Turn AMM 32-45-51-000-001 Removal of the Parking-Brake Electrical Control-Valve 72GG AMM 32-45-51-400-001 Installation of the Parking-Brake Electrical
 Control-Valve 72GG

R AMM 32-45-53-000-001 Removal of the Parking-Brake Electrical Control-Valve
R AMM 32-45-53-400-001 Installation of the Parking-Brake Electrical
R Control-Valve
 AMM 32-51-12-000-001 Removal of the Nose Wheel Steering Deactivation Electrical Box AMM 32-51-12-400-001 Installation of the Nose Wheel Steering Deactivation Electrical Box R PC 32511201 ASM 32-45/01
 3. Fault Confirmation
__________________
 A. Test
 (1) Do the operational test of the parking brake system (Ref. AMM TASK 32-45-00-710-001).
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞32-45-00∞∞∞∞∞∞∞∞∞∞Page 213
 Aug 01/05 CES

 4. Fault Isolation
_______________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
 A. If the parking brake indicator light is not on during the test:
 - do a check for 28VDC at pin A/B of the N/W steering deactivation electrical box (5GC) (Ref. ASM 32-45/01).
 (1) If there is no 28VDC:

 - repair the wiring from the N/W steering deactivation electrical box (5GC) pin A/B to the first terminal block.

 (2) If there is 28VDC:

 - do a check for a ground signal at pin A/A of the N/W steering deactivation electrical box (5GC) (Ref. ASM 32-45/01).
 (a) If there is no ground signal: R - repair the:
R 1_ wiring from the parking brake electrical control valve (72GG)R pin A/D to the ground terminal.
R 2_ wiring from the parking brake electrical control valve (72GG)R to the N/W steering deactivation electrical box (5GC) pin A/E R to pin A/A.
 (b) If there is a ground signal:
 - replace the ELEC BOX-N/W STEERING,DEACTIVATION (5GC) (Ref. AMM TASK 32-51-12-000-001) and (Ref. AMM TASK 32-51-12-400-001).
 1 If the fault continues:
_

 - replace the CTL VALVE-PARK BRK,ELEC. (72GG) (Ref. AMM TASK 32-45-51-000-001) and (Ref. AMM TASK 32-45-51-400-001).
R **ON A/C 401-499,
R A. If the parking brake indicator light is not ON during the test:
　
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本文鏈接地址：A320 Trouble Shooting Manual 排故手冊 起落架 LANDING GEAR 2(64)