-----------------------------------------------------| SIGNAL LINE | CONNECTOR 9QG-A PIN | |---------------------------|-------------------------| | MOTOR 1 OPEN 28VDC SUPPLY | A | | MOTOR 1 GROUND/EARTH | E | -----------------------------------------------------
(6) Disconnect the electrical supply cable connector 9QG-B from the ACTUATOR-LP FUEL VALVE, ENG 1 (9QG).
(7) With a multimeter do a test to see if the 28VDC supply is available at the connector 9QG-B between the pins as shown in the table below.
-----------------------------------------------------| SIGNAL LINE | CONNECTOR 9QG-B PIN | |---------------------------|-------------------------| | MOTOR 2 OPEN 28VDC SUPPLY | A | | MOTOR 2 GROUND/EARTH | E | -----------------------------------------------------
「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 203
Feb 01/98 CES (a) If the supply voltage at each connector, Steps (5), and (7) are correct:
1_ 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).
2_ If the fault continues:
- replace the VALVE-LP FUEL, ENG 1 (12QM), (Ref. AMM TASK 28-
24-41-000-001), and (Ref. AMM TASK 28-24-41-400-001).
(b) If the supply voltage at each connector, Steps (5), and (7) are not correct:
1 Check/replace the CONTROL SWITCH-ENG/MASTER 1 (3KC), (part of
_ ENG PNL 115VU).
2 Do the test given in Para. 3.A.
_
3 Check/replace the ENG/APU FIRE PNL (1WD).
_
4 Do the test given in Para. 3.A.
_
5 Check/replace the RELAY-ENG/MASTER 1 (11QG)
_
6 Do the test given in Para. 3.A.
_
7 If the fault continues:
_
- do a check (Ref. AWM 28-24-01) of the 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
- do a check (Ref. AWM 28-24-01) of the 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)
- do a check (Ref. AWM 28-24-01) of the 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
- do a check (Ref. AWM 28-24-01) of the 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)
- do a check (Ref. AWM 28-24-01) of the 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
- do a check (Ref. AWM 28-24-01) of the 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
「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 204
Feb 01/98 CES
- do a check (Ref. AWM 28-24-01) of the 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
- do a check (Ref. AWM 28-24-01) of the 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.
8_ Repair all the unserviceable wiring and connectors.
9_ Do the test given in Para. 3.A.
5. Close-up________
A. Put the aircraft back to its initial configuration.
「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 205
Feb 01/98 CES
TASK 28-24-00-810-802
Fuel LP Fuel Valve Engine 1 Does Not Close
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 1 (9QG)
- VALVE-LP FUEL, ENG 1 (12QM) 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 FUEL 燃油2(34)
