TASK 32-51-00-810-818
Nosewheel Steering Position Order Disagree
1. Possible Causes
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- BSCU (10GG)
- SENSOR-N/W STRG FDBK,CTL CHAN (3GC)
- SENSOR-N/W STRG FDBK,MONITORING CHAN (4GC)
- wiring from the BSCU (10GG)to the sensor (3GC)
- wiring from the BSCU (10GG) to the sensor (4GC)
2. Job Set-up Information
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A. Referenced Information
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REFERENCE DESIGNATION
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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 32-46-00-740-001 BITE Test of the BSCU
AMM 32-51-00-820-002 Adjustment of the NWS "Zero" Position with the
Adjusting Tool F26630200 for A/C with NWS Sensor (3GC,4GC) P/N C24763000, NLG Centering Cams as Reference
AMM 32-51-19-000-001 Removal of the Nose Wheel Steering Feedback Sensor (3GC, 4GC) P/N C24763000 AMM 32-51-19-400-001 Installation of the Nose Wheel Steering Feedback Sensor (3GC, 4GC) P/N C24763000 ASM 32-51/01
3. Fault Confirmation
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A. Test
(1) Do the BITE test of the BSCU (Ref. AMM TASK 32-46-00-740-001).
4. Fault Isolation
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R **ON A/C 001-049, 051-099, 101-105, 151-199, 201-220, 301-399,
A. If the test gives the maintenance message BSCU or STEERING FEEDBACK SENSOR:
- replace the BSCU (10GG) (Ref. AMM TASK 32-42-34-000-001) and (Ref. AMM TASK 32-42-34-400-001).
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(1) If the fault continues:
- replace the SENSOR-N/W STRG FDBK,CTL CHAN (3GC) (Ref. AMM TASK 32-51-19-000-001) and (Ref. AMM TASK 32-51-19-400-001).
(2) If the fault continues:
- replace the SENSOR-N/W STRG FDBK,MONITORING CHAN (4GC) (Ref. AMM TASK 32-51-19-000-001) and (Ref. AMM TASK 32-51-19-400-001).
(3) If the fault continues:
- do a check and repair the wiring from the BSCU (10GG)to the sensor (3GC) pins A/A, B, C, D, E, F to pins AB/15E, 15F, 8E, 8F, 9F, 9E (Ref. ASM 32-51/01).
(4) If the fault continues:
- do a check and repair the wiring from the BSCU (10GG) to the sensor (4GC) pins A/A, B, C, D, E, F to pins AB/14E, 14F, 10E, 10F, 11F, 11E (Ref. ASM 32-51/01)
(5) If the fault continues:
- do the adjustment of the Nose Wheel Steering gearbox (Ref. AMM TASK 32-51-00-820-002).
R **ON A/C 106-149, 221-299, 401-499,
A. If the test gives the maintenance message BSCU(10GG)/STEERING FDBK SENSORS (3GC/4GC):
- replace the BSCU (10GG) (Ref. AMM TASK 32-42-34-000-001) and (Ref. AMM TASK 32-42-34-400-001).
(1) If the fault continues:
- replace the SENSOR-N/W STRG FDBK,CTL CHAN (3GC) (Ref. AMM TASK 32-51-19-000-001) and (Ref. AMM TASK 32-51-19-400-001).
(2) If the fault continues:
- replace the SENSOR-N/W STRG FDBK,MONITORING CHAN (4GC) (Ref. AMM TASK 32-51-19-000-001) and (Ref. AMM TASK 32-51-19-400-001).
(3) If the fault continues:
- do a check and repair the wiring from the BSCU (10GG)to the sensor (3GC) pins A/A, B, C, D, E, F to pins AB/15E, 15F, 8E, 8F, 9F, 9E (Ref. ASM 32-51/01).
(4) If the fault continues:
- do a check and repair the wiring from the BSCU (10GG) to the sensor (4GC) pins A/A, B, C, D, E, F to pins AB/14E, 14F, 10E, 10F, 11F, 11E (Ref. ASM 32-51/01)
(5) If the fault continues:
- do the adjustment of the Nose Wheel Steering gearbox (Ref. AMM TASK 32-51-00-820-002).
「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 ∞∞32-51-00∞∞∞∞∞∞∞∞∞∞Page 244
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**ON A/C ALL
B. Test
Do the test given in Para. 3.A.
「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 ∞∞32-51-00∞∞∞∞∞∞∞∞∞∞Page 245 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320 Trouble Shooting Manual 排故手册 起落架 LANDING GEAR 2(109)
