- replace the SERVO CTL-N/W STEERING (6GC) (Ref. AMM TASK 32-51-11-000-001) (Ref. AMM TASK 32-51-51-400-001)
(c) If the fault continues:
- replace the NLG tires
「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 A201
Aug 01/05R
CES TASK 32-51-00-810-826
Failure of the Nose Wheel Steering Servocontrol or incorrect ajustment of the NWS gearbox
1. Possible Causes
_______________
- SERVO CTL-N/W STEERING (6GC)
- BSCU (10GG)
- LGCIU-1 (5GA1)
- SAFETY VALVE-L/G SYS ISOLATION (49GA)
- SEL VALVE-L/G DOORS (41GA)
- steering servo valve
- wiring
- hydraulic control relay
- electro-distributor valve
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 12-14-32-614-004
AMM 32-22-00-010-001
AMM 32-22-00-410-001
AMM 32-31-17-000-001
AMM 32-31-17-400-001
AMM 32-31-34-000-001
AMM 32-31-34-400-001
AMM 32-31-71-000-001
AMM 32-31-71-400-001
AMM 32-42-34-000-001
AMM 32-42-34-400-001
AMM 32-51-00-720-004
AMM 32-51-19-220-001
AMM 32-51-51-000-001
AMM 32-51-51-000-002
AMM 32-51-51-000-003
AMM 32-51-51-400-001
AMM 32-51-51-400-002
AMM 32-51-51-400-003
Check Shock Absorber Charge PressureNose Gear Doors - Ground Doors OpeningNose Gear Doors - Ground Doors ClosingRemoval of the Landing Gear Safety-ValveInstallation of the Landing Gear Safety-ValveRemoval of the L/G Door Selector Valve 41GAInstallation of the L/G Door Selector Valve 41GARemoval of the LGCIU (5GA1, 5GA2)Installation of the LGCIU (5GA1, 5GA2)Removal of the Braking/Steering Control Unit (BSCU) (10GG)Installation of the Braking/Steering Control Unit (BSCU) (10GG)Functional Test of the Nose Wheel Steering with the Pedals.Check of the Voltage at the Nose Wheel Steering Feedback Sensor (3GC,4GC)Removal of the Nose Wheel Steering Servo-Control (6GC)Removal of the Nose Wheel Steering Servo-ValveRemoval of the Nose Wheel Steering Electro-DistributorInstallation of the Nose Wheel Steering Servo-Control (6GC)Installation of the Nose Wheel Steering Servo-ValveInstallation of the Nose Wheel Steering Electro-Distributor -------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
ASM 32-31/05
ASM 32-31/07
ASM 32-51/01
3. Fault Confirmation
__________________
A. Test
(1) Do the functional test of the steering of the nose wheels with the pedals (Ref. AMM TASK 32-51-00-720-004).
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 STEERING ELECTRO HYDRAULIC MODULE (6GC):
- do a check for water in the electrical connector of the N/W steering servo control (6GC) (Ref. ASM 32-51/01).
(1) If there is water:
- examine the electrical connector for corrosion.
(a) If there is corrosion:
- replace the SERVO CTL-N/W STEERING (6GC) (Ref. AMM TASK 32-51-51-000-001) and (Ref. AMM TASK 32-51-51-400-001).
(b) If there is no corrosion:
- dry the electrical connector of the N/W steering servo control (6GC) and connect it.
(2) If there is no water:
- remove the steering servo valve (Ref. AMM TASK 32-51-51-000-002)
- do a check for water in the two electrical connectors of the N/W steering servo control.
(a) If there is water:
- examine the electrical connectors for corrosion.
1 If there is corrosion:
_
- replace the SERVO CTL-N/W STEERING (6GC) (Ref. AMM TASK 32-51-51-000-001) and (Ref. AMM TASK 32-51-51-400-001).
2 If there is no corrosion:
_
- dry the two electrical connectors and install the steering servo valve (Ref. AMM TASK 32-51-51-400-002).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : ALL ∞∞32-51-00∞∞∞∞∞∞∞∞∞∞Page A203
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本文链接地址：A320 Trouble Shooting Manual 排故手册 起落架 LANDING GEAR 2(136)
