- replace the ACTUATOR-LP FUEL VALVE, ENG 1 (9QG), (Ref. AMM TASK 28-24-51-000-001), and (Ref. AMM TASK 28-24-51-400-001).
(b) If the ENG 1 LP fuel valve symbol does not show in transit:
- do a check (Ref. AWM 31-54-77) of the aircraft wiring(closed signal line/SDAC-1) between the ACTUATOR-LP VALVE, ENG 1 (9QG) connector 9QG-A, pin B and the SDAC-1 (1WV-1) connector AA, pin 2C
- do a check (Ref. AWM 31-54-77) of the aircraft wiring (open signal line/SDAC-1) between the ACTUATOR-LP VALVE, ENG 1 (9QG) connector 9QG-A, pin D and the SDAC-1 (1WV-1) connector AA, pin 1C
- do a check (Ref. AWM 31-54-77) of the aircraft wiring(closed signal line/SDAC-2) between the ACTUATOR-LP VALVE, ENG 1 (9QG) connector 9QG-A, pin B and the SDAC-2 (1WV-2) connector AA, pin 2C
- do a check (Ref. AWM 31-54-77) of the aircraft wiring (open signal line/SDAC-2) between the ACTUATOR-LP VALVE, ENG 1 (9QG) connector 9QG-A, pin D and the SDAC-2 (1WV-2) connector AA, pin 1C.
1 Repair all the unserviceable wiring and connectors.
_
(5) Examine the ENG 1 LP fuel valve symbol on the FUEL system page.
(6) If the fault continues:
- open the C/Bs 3WV (SDAC1) and 2WV (SDAC2) in turn:
(7) If the fault is displayed on one powered/active SDAC:
- swap SDACs to confirm the faulty LRU.
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Feb 01/98 CES
(8) Check/replace the SDAC-1 (1WV1) or SDAC-2 (1WV2), (Ref. AMM TASK 31-55-34-000-001), and (Ref. AMM TASK 31-55-34-400-001) that causes the not correct LP fuel valve symbol to be shown on the FUEL system display (ECAM lower DU).
(9) Connect the electrical supply cable connector 9QG-A to the
ACTUATOR-LP FUEL VALVE, ENG 1 (9QG).
(10) Do the Operational Test of the ENG 1(2) LP Fuel Valve 12QM(13QM) (Ref. AMM TASK 28-24-00-710-002).
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Feb 01/98 CES
TASK 28-24-00-810-805
Fuel LP Fuel Valve Engine 2 Does Not Open
WARNING : OBEY THE FUEL SAFETY PROCEDURES.
_______
WARNING : WHEN YOU WORK ON THE FUEL SYSTEM WIRING, YOU MUST USE TEST EQUIPMENT
_______ THAT IS APPROVED TO EUROPEAN SPECIFICATION EN50-020. THE USE OF TEST EQUIPMENT THAT IS NOT APPROVED CAN CAUSE FIRE OR AN EXPLOSION.
1. Possible Causes
_______________
- ACTUATOR-LP FUEL VALVE, ENG 2 (10QG)
- VALVE-LP FUEL, ENG 2 (13QM)
- ENG/APU FIRE PNL (1WD)
- CONTROL SWITCH-ENG/MASTER 2 (2KC), (part of ENG PNL 115VU)
- RELAY-ENG/MASTER 2 (12QG)
- aircraft wiring (motor 1/open supply) between the ACTUATOR-LP FUEL VALVE, ENG 2 free connector 10QG-A, pin A and the RELAY-ENG/MASTER 2 (12QG), terminal A3
- aircraft wiring (motor 1/ground/earth) between the ACTUATOR-LP FUEL VALVE, ENG 2 free connector 10QG-A, pin E and the ground/earth point 4002VN(621STA332)
- aircraft wiring (motor 2/open supply) between the ACTUATOR-LP FUEL VALVE, ENG 2 free connector 10QG-B, pin A and the RELAY-ENG/MASTER 2 (12QG), terminal B3
- aircraft wiring (motor 2/ground/earth) between the ACTUATOR-LP FUEL VALVE, ENG 2 free connector 10QG-B, pin E and the ground/earth point 4004VN(622STA450)
- aircraft wiring (motor 1/open supply) between the RELAY-ENG/MASTER 2 (12QG), terminal A2 and the ENG/APU FIRE PANEL (1WD) free connector 1WD-D, pin <G
- aircraft wiring (motor 2/open supply) between the RELAY-ENG/MASTER 2 (12QG), terminal B2 and the ENG/APU FIRE PANEL (1WD) free connector 1WD-C, pin <A
- aircraft wiring (motor 1/open supply) between the ENG/APU FIRE PANEL (1WD) free connector 1WD-D, pin <H and the C/B-FUEL/LP VALVE/MOT 1/ENG 2 (2QG), terminal 2
- aircraft wiring (motor 2/open supply) between the ENG/APU FIRE PANEL (1WD) free connector 1WD-C, pin <B and the C/B-FUEL/LP VALVE/MOT 2/ENG 2 (4QG), terminal 2
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
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REFERENCE QTY DESIGNATION
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No specific multimeter
「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 ∞∞28-24-00∞∞∞∞∞∞∞∞∞∞Page 218
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本文链接地址：A320 Trouble Shooting Manual 排故手册 FUEL 燃油2(39)
