- if the source of the message is BSCU 2, do a check and repair the wiring from the BSCU (10GG) to the wheel 2 norm brake servovalve (17GG) pins AB/10A, 10B to pins A/F, E. (Ref. ASM 32-42/02)
「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 213
Aug 01/05 CES
R **ON A/C 106-149, 221-299, 401-499,
A. If the test gives the maintenance message BRK NORM SERVOVLV2 (17GG) and the TROUBLE SHOOTING DATA gives one of these fault codes: 26 or 34 or 86.
- replace the SERVOVALVE-NORM BRK WHEEL 2 (17GG), (Ref. AMM TASK 32-42-48-000-001) and (Ref. AMM TASK 32-42-48-400-001).
(1) If the fault continues:
- replace the PRESS XDCR-NORM BRK WHEEL 2 (13GG) (Ref. AMM TASK 32-42-21-000-001) and (Ref. AMM TASK 32-42-21-400-001).
B. If the test gives the maintenance message BRK NORM SERVOVLV2 (17GG) and the TROUBLE SHOOTING DATA gives one of these fault codes: 42 or 50 or 511 or 521.
- do a continuity/resistance test at the servovalve.The resistance must be between 90 and 100 ohms.
(1) If the test is not OK:
- replace the SERVOVALVE-NORM BRK WHEEL 2 (17GG) (Ref. AMM TASK 32-42-48-000-001) (Ref. AMM TASK 32-42-48-400-001)
(2) If the test is OK:
- replace the BSCU (10GG) (Ref. AMM TASK 32-42-34-000-001) (Ref. AMM TASK 32-42-34-400-001)
(a) If the fault continues:
- if the source of the message is BSCU 1, do a check and repair the wiring from the BSCU (10GG) to the wheel 2 norm brake servovalve (17GG) pins AB/10K, 10J to pins A/C, A. (Ref. ASM 32-42/02)
- if the source of the message is BSCU 2, do a check and repair the wiring from the BSCU (10GG) to the wheel 2 norm brake servovalve (17GG) pins AB/10A, 10B to pins A/F, E. (Ref. ASM 32-42/02)
**ON A/C ALL
C. Do the test given in Para. 3.A.
TASK 32-42-00-810-807
Electrical or hydraulic failure of the Normal Brake Servovalve 16GG.
1. Possible Causes
_______________
- PRESS XDCR-NORM BRK WHEEL 3 (12GG)
- SERVOVALVE-NORM BRK WHEEL 3 (16GG)
- BSCU (10GG)
- SERVOVALVE-NORM BRK WHEEL 3 (16GG)
- wiring from the BSCU (10GG) to the wheel 3 norm brake servovalve (16GG)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 32-42-00-710-001 Operational Check of the Normal Braking System AMM 32-42-21-000-001 Removal of the Normal-Brake Pressure Transducer AMM 32-42-21-400-001 Installation of the Normal-Brake Pressure Transducer AMM 32-42-34-000-001 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 32-42-48-000-001 Removal of the Normal Brake Servovalve
AMM 32-42-48-400-001 Installation of the Normal Brake Servovalve
AMM 32-46-00-740-002 BITE Test of the BSCU - Ground Scanning
AMM 32-46-00-740-005 BITE Test of the Normal Braking System
ASM 32-42/02
TSM 32-42-00 P.Block 301 NORMAL BRAKING
3. Fault Confirmation
__________________
R **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).
(2) Do the ground scanning of the BSCU during the operational test of the normal braking system (Ref. AMM TASK 32-46-00-740-002).
(3) Read the TROUBLE SHOOTING DATA of the BSCU on the MCDU (Ref. 32-42-00, P. Block 301)
「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 215
May 01/05 CES
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)
(2) Read the TROUBLE SHOOTING DATA of the BSCU on the MCDU. (Ref. TSM 32-42-00 P.Block 301)
**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 16GG and the TROUBLE SHOOTING DATA gives the fault code 20:
- replace the SERVOVALVE-NORM BRK WHEEL 3 (16GG), (Ref. AMM TASK 32-42-48-000-001) and (Ref. AMM TASK 32-42-48-400-001).
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