- the resistance must be approximately 13 ohms.
(c) Connect the pins A and B together.
(d) Connect one test lead of a 50 VDC Isolation Tester to pins AB and the other test lead to the case.
(e) Supply a test signal for 5 seconds and read the resistance value shown. The resistance value must be more than 400 Megohms.
(f) From the resistance checks in steps (b) and (e):
- if the two resistance values are correct, do step (4)
- if one or more of the resistance values is not correct, do the next step.
(3) Replace the applicable proximity-sensor PROX SNSR-NLG DNLK, SYS 1 (18GA) or PROX SNSR-NLG DNLK, SYS 2 (19GA), (Ref. AMM TASK 32-31-73-000-005) and (Ref. AMM TASK 32-31-73-400-005).
- if the fault continues, do the next step.
(4) Do a check and repair as necessary the aircraft wiring between the applicable proximity-sensor electrical connector and the related LGCIU ARINC tray (Ref. ASM 32-31/03) or (Ref. ASM 32-31/04).
(5) Do the test in Para. 3.A.(1).
- if the fault continues, do the next step.
(6) Replace the applicable LGCIU-1 (5GA1) or LGCIU-2 (5GA2), (Ref. AMM TASK 32-31-71-000-001) and (Ref. AMM TASK 32-31-71-400-001), which identified the fault.
「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 ∞∞32-31-00∞∞∞∞∞∞∞∞∞∞Page 257
May 01/05R
CES
TASK 32-31-00-810-825
RLG Uplock Proximity Sensor Fault (08GA, 10GA)
WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______
GEAR.
WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU
_______
START A TASK ON OR NEAR:
- THE FLIGHT CONTROLS
- THE FLIGHT CONTROL SURFACES
- THE LANDING GEAR AND THE RELATED DOORS
- COMPONENTS THAT MOVE.
1. Possible Causes
_______________
- LGCIU-1 (5GA1)
- LGCIU-2 (5GA2)
- MLG uplock (2510GM) is incorrectly greased
- proximity sensor 08GA and/or 10GA
- aircraft wiring
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific Multimeter
No specific 50Vdc Isolation Tester
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 12-22-32-640-001 Lubrication of the MLG and Doors
AMM 32-12-00-010-001 Open the Main Gear Doors for Access
AMM 32-31-71-000-001 Removal of the LGCIU (5GA1, 5GA2)
AMM 32-31-71-400-001 Installation of the LGCIU (5GA1, 5GA2)
AMM 32-31-73-000-001 Removal of the Proximity-Sensors 9GA(8GA),
11GA(10GA), 27GA(26GA), 29GA(28GA), 15GA(14GA), 17GA(16GA), 21GA(20GA), 23GA(22GA), 33GA(32GA), 35GA(34GA)
AMM 32-31-73-400-001 Installation of the Proximity-Sensors 9GA(8GA), 11GA(10GA), 27GA(26GA), 29GA(28GA), 15GA(14GA), 17GA(16GA), 21GA(20GA), 23GA(22GA), 33GA(32GA)...
「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 ∞∞32-31-00∞∞∞∞∞∞∞∞∞∞Page 258
May 01/05R CES
-------------------------------------------------------------------------------
REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 32-69-00-740-001 BITE Check Landing Gear Control Interface Unit (LGCIU) using MCDU to Ensure that Continuous BITE is Operative
ASM 32-31/03
ASM 32-31/04
TFU 323144001
3. Fault Confirmation
__________________
A. Message Analysis.
(1) Do a BITE test on the LGCIU-1 (2) (Ref. AMM TASK 32-69-00-740-001)
(a) Access LGCIU-1 (2) TROUBLE SHOOTING (ground) and read the BITE test fault number(s) for fault confirmation (refer to AMM 326900 table 4).
NOTE : The table 4 shows the fault messages approximate to the
____
CFDS message
(2) Do the fault isolation.
4. Fault Isolation
_______________
A. Procedure.
(1) Open the R L/G Door for access to the proximity sensor (Ref. AMM TASK 32-12-00-010-001).
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本文鏈接地址：A320 Trouble Shooting Manual 排故手冊(cè) 起落架 LANDING GEAR 1(25)
