- aircraft wiring (motor 1/open supply) between the ACTUATOR-LP FUEL VALVE, ENG 1 free connector 9QG-A, pin A and the RELAY-ENG/MASTER 1 (11QG), terminal A3
- aircraft wiring (motor 1/ground/earth) between the ACTUATOR-LP FUEL VALVE, ENG 1 free connector 9QG-A, pin E and the ground/earth point 4001VN(521STA332)
- aircraft wiring (motor 2/open supply) between the ACTUATOR-LP FUEL VALVE, ENG 1 free connector 9QG-B, pin A and the RELAY-ENG/MASTER 1 (11QG), terminal B3
- aircraft wiring (motor 2/ground/earth) between the ACTUATOR-LP FUEL VALVE, ENG 1 free connector 9QG-B, pin E and the ground/earth point 4003VN(522STA450)
- aircraft wiring (motor 1/open supply) between the RELAY-ENG/MASTER 1 (11QG), terminal A2 and the ENG/APU FIRE PANEL (1WD) free connector 1WD-A, pin T
- aircraft wiring (motor 2/open supply) between the RELAY-ENG/MASTER 1 (11QG), terminal B2 and the ENG/APU FIRE PANEL (1WD) free connector 1WD-B, pin <A
- aircraft wiring (motor 1/open supply) between the ENG/APU FIRE PANEL (1WD) free connector 1WD-A, pin U and the C/B-FUEL/LP VALVE/MOT 1/ENG 1 (1QG), terminal 2
- aircraft wiring (motor 2/open supply) between the ENG/APU FIRE PANEL (1WD) free connector 1WD-B, pin <B and the C/B-FUEL/LP VALVE/MOT 2/ENG 1 (3QG), terminal 2
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2. Job Set-up Information
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A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific multimeter
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R AMM 28-24-41-000-001 Removal of the LP Fuel Valve 12QM(13QM)
R AMM 28-24-41-400-001 Installation of the LP Fuel Valve 12QM(13QM) AMM 28-24-51-000-001 Removal of the LP Fuel Valve Actuator AMM 28-24-51-400-001 Installation of the LP Fuel Valve Actuator ASM 26-21/02 ASM 28-24/01 ASM 76-12/01 AWM 28-24-01 AWM 94-05-02
3. Fault Confirmation
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A. Procedure.
NOTE : You can get more data from the:
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- Aircraft Maintenance Manual (AMM) Chapters 26-12-00, 26-21-00, 28-24-00, and 76-12-00 - Description and Operation (D and O)
- Trouble Shooting Manual (TSM), Task Supporting Data, (Ref. P. Block 301)
- Aircraft Schematic Manual (ASM) (Ref. ASM 26-21/02), (Ref. ASM 28-24/01), and (Ref. ASM 76-12/01).
(1) On the ENG/APU FIRE PANEL (1WD) located on the overhead panel 20VU, make sure that the ENG 1 FIRE PUSH pushbutton switch (P/BSW) is in the closed and guarded position.
(2) On the ECAM Control Panel 11VU, push (in) the FUEL P/BSW to get the FUEL system page on the ECAM lower display unit (DU).
(3) Set the ENG/MASTER 1 (3KC) switch (panel 115VU) to ON.
(4) Examine the ENG 1 LP fuel valve symbol on the FUEL system page.
(5) Examine the see/feel indicator on the ACTUATOR-LP FUEL VALVE, ENG 1 (9QG). (Ref. P. Block 301).
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(6) If the FUEL page shows the ENG 1 LP fuel valve symbol as green, in line, and the see/feel indicator on the ENG 1 LP fuel valve shows that the valve is open:
- maintenance steps are not necessary.
4. Fault Isolation
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A. If the FUEL page shows the ENG 1 LP fuel valve symbol as an amber cross line, and the see/feel indicator on the ENG 1 LP fuel valve shows that the valve is closed. (Ref. P. Block 301).
(1) Examine for obvious signs of damage the items that follow:
- the actuator supply cables and end connectors
- the actuator electrical recepticals
- the cable looms next to the actuators.
NOTE : Left Wing Wire Routing (Ref. AWM 94-05-02).
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(2) Repair/replace all the unserviceable wiring and connectors.
(3) Do the test given in Para. 3.A.
(4) Disconnect the electrical supply cable connector 9QG-A from the ACTUATOR-LP FUEL VALVE, ENG 1 (9QG).
(5) With a multimeter do a test to see if the 28VDC supply is available at the connector 9QG-A between the pins as shown in the table below. 中國航空網 m.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：A320 Trouble Shooting Manual 排故手冊 FUEL 燃油2(33)
