3. Fault Confirmation
__________________
A. Test
(1) Do the operational test of Alternate braking with/without anti skid (Ref. AMM TASK 32-43-00-710-001). Do a check to confirm that when you put a same force on the left and right brake pedals, the left and right braking pressures do not increase symmetrically.
4. Fault Isolation
_______________
A. If the test confirms the fault:
- do a check for leakage on: . the master cylinders (2625GM) and (2626GM) . the Alternate-brake distribution dual-valve (2577GM) . the connections and hydraulic pipes between the master cylinder and the Alternate-brake distribution dual-valve.
「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 ∞∞32-42-00∞∞∞∞∞∞∞∞∞∞Page 268
Feb 01/04 CES
(1) If there are leaks:
- replace the defective component: . the MASTER CYL-BRK CTL,L (2625GM) or MASTER CYL-BRK CTL,R (2626GM) (Ref. AMM TASK 32-43-12-000-001) (Ref. AMM TASK 32-43-12-400-001) . the DUAL VALVE-ALTN BRK DISTR (2577GM) (Ref. AMM TASK 32-43-14-000-001) (Ref. AMM TASK 32-43-14-400-001) . the hydraulic pipes.
(2) If there are no leaks:
- bleed the low pressure-control system (Ref. AMM TASK 32-43-00-612-001).
「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 ∞∞32-42-00∞∞∞∞∞∞∞∞∞∞Page 269
Feb 01/04R
CES
TASK 32-42-00-810-843
Failure of the Brake Selector Valve (Jammed Open)
1. Possible Causes
_______________
- SEL VALVE-BRK (23GG)
- BSCU (10GG)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 32-42-00-710-001 Operational Check of the Normal Braking System AMM 32-42-11-000-001 Removal of the Brake Selector Valve 23GG AMM 32-42-11-400-001 Installation of the Brake Selector Valve 23GG AMM 32-42-34-000-001 Removal of the Braking/Steering Control Unit (BSCU)
(10GG) AMM 32-42-34-400-001 Installation of the Braking/Steering Control Unit (BSCU) (10GG) AMM 32-46-00-740-005 BITE Test of the Normal Braking System
3. Fault Confirmation
__________________
**ON A/C 001-049, 051-099, 101-105, 151-199, 201-220, 301-399,
A. Test
(1) Do the operational test of the Normal braking system (Ref. AMM TASK 32-42-00-710-001).
R **ON A/C 106-149, 221-299, 401-499,
A. Test
(1) Do the BITE test of the Normal Braking System. (Ref. AMM TASK 32-46-00-740-005)R **ON A/C ALL
4. Fault Isolation
_______________
A. If the test confirms the fault:
- replace the SEL VALVE-BRK (23GG) (Ref. AMM TASK 32-42-11-000-001) (Ref. AMM TASK 32-42-11-400-001).
(1) If the fault continues:
- replace the BSCU (10GG) (Ref. AMM TASK 32-42-34-000-001) (Ref. AMM TASK 32-42-34-400-001).
B. Do the test given in Para.3.A.
TASK 32-42-00-810-844
Drift of the Normal Brake Servovalve (Wheel 1)
1. Possible Causes
_______________
- SERVOVALVE-NORM BRK WHEEL 1 (15GG)
- PRESS XDCR-NORM BRK WHEEL 1 (11GG)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 32-42-21-000-001 Removal of the Normal-Brake Pressure Transducer AMM 32-42-21-400-001 Installation of the Normal-Brake Pressure Transducer AMM 32-42-48-000-001 Removal of the Normal Brake Servovalve AMM 32-42-48-400-001 Installation of the Normal Brake Servovalve AMM 32-46-00-740-001 BITE Test of the BSCU AMM 32-46-00-740-005 BITE Test of the Normal Braking System
3. Fault Confirmation
__________________
**ON A/C 001-049, 051-099, 101-105, 151-199, 201-220, 301-399,
A. Do the BITE test of the BSCU (Ref. AMM TASK 32-46-00-740-001).
R **ON A/C 106-149, 221-299, 401-499,
A. Do the BITE test of the Normal Braking System. (Ref. AMM TASK 32-46-00-740-005)
**ON A/C ALL
4. Fault Isolation
_______________
**ON A/C 001-049, 051-099, 101-105, 151-199, 201-220, 301-399,
A. If the test gives the maintenance message BRK NORM SERVOVALVE 15GG:
- replace the SERVOVALVE-NORM BRK WHEEL 1 (15GG) (Ref. AMM TASK 32-42-48-000-001) and (Ref. AMM TASK 32-42-48-400-001).
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