(2) Make sure that there is no pressure to the related side on the triple indicator.

 「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 ∞∞32-43-00∞∞∞∞∞∞∞∞∞∞Page 228
 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 test confirms the fault:
 - do a check and repair if necessary the leak of the hydraulic line between the alternate-brake distribution dual-valve (2577GM) and the brake Yellow dual shuttle-valve (2578GM).
 (1) If the fault continues:

 - replace the DUAL VALVE-ALTN BRK DISTR (2577GM) (Ref. AMM TASK 32-43-14-000-001) and (Ref. AMM TASK 32-43-14-400-001).

 (2) If the fault continues:

 - 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).
R **ON A/C 401-499,

R A. If the test confirms the fault:
R - do a check of the connection of the related self-sealing couplings.

R (1) If not correct:
R - correctly adjust the related self-sealing couplings.

R (2) If the fault continues:
R - do a check for leaks on the alternate brake pistons of the related
R wheels .

R (a) If there are leaks:
R - replace the related BRAKE-WHEEL 1 (2643GM) or BRAKE-WHEEL 2
R (2641GM) ; BRAKE-WHEEL 3 (2644GM) or BRAKE-WHEEL 4 (2642GM)
R (Ref. AMM TASK 32-42-27-000-001) (Ref. AMM TASK 32-42-27-400-R 001)

R (3) If the fault continues:
R - do a check for leaks on the hydraulic line between the
R MANIFOLD-ALTN BRK, L (2853GM) or MANIFOLD-ALTN BRK, R (2852GM) and
R the related brakes unit (wheel 1,2) or (wheel 3,4).

R (a) If there are leaks:
R - repair the leaks and reactivate the safety valve on the related
R MANIFOLD-ALTN BRK, L (2853GM) or MANIFOLD-ALTN BRK, R (2852GM)
R (Ref. AMM TASK 32-43-32-600-001).

 「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 ∞∞32-43-00∞∞∞∞∞∞∞∞∞∞Page 229
 Aug 01/05 CESR TASK 32-43-00-810-820 R Failure of ABCU R 1. Possible Causes

_______________ R - ABCU (95GG) R 2. Job Set-up Information
______________________
R A. Referenced Information
R -------------------------------------------------------------------------------R REFERENCE DESIGNATION R -------------------------------------------------------------------------------
R AMM 32-43-34-000-001 R R AMM 32-43-34-400-001 R R AMM 32-46-00-740-001
R 3. Fault Confirmation
__________________
R A. Test
Removal of the Alternate Braking Control Unit (ABCU)
(95GG)
Installation of the Alternate Braking Control Unit
(ABCU) (95GG)
BITE Test of the BSCU

R (1) Do the BITE test of the BSCU (Ref. AMM TASK 32-46-00-740-001) R 4. Fault Isolation
_______________
R A. If the BITE test gives the maintenance message ABCU R - replace the ABCU (95GG) (Ref. AMM TASK 32-43-34-000-001) (Ref. AMM TASK R 32-43-34-400-001)
R B. Do the test given in Para. 3.A.

R  TASK 32-43-00-810-821 
R  Failure of the BRK ALTN Selector Valve (99GG) 
R  1. Possible Causes_______________ 
R  - SEL VALVE-ALTN BRK (99GG) 
R  2. Job Set-up Information______________________ 
R  A. Referenced Information 
R  -------------------------------------------------------------------------------
R  REFERENCE  DESIGNATION 
R  -------------------------------------------------------------------------------
R  AMM  32-43-51-000-001  Removal of the Alternate Braking Selector Valve 
R  AMM  32-43-51-400-001  Installation of the Alternate Braking Selector Valve 
R  3. Fault Confirmation__________________ 
R  A. Test 
R  (1) Do the BITE test of the BSCU 
R  4. Fault Isolation_______________ 
R  A. If the BITE test gives the maintenance message BRK ALTN SELECTOR 
R  VALVE(99GG): 
R  - replace the SEL VALVE-ALTN BRK (99GG) (Ref. AMM TASK 32-43-51-000-001) 
R  (Ref. AMM TASK 32-43-51-400-001) 
R  B. Do the test given in Para.3.A.

R  TASK 32-43-00-810-822 
R  Loss of left alternate braking or right alternate braking detected by the ABCU 
R  1. Possible Causes_______________ 
R  - ABCU (95GG) 
R  - XMTR UNIT-ALTN, BRK PEDAL (103GG) 
　
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