(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.
-------------------------------------------------------
| SIGNAL LINE | CONNECTOR 9QG-A PIN |
|-----------------------------|-------------------------|
| MOTOR 1 CLOSE 28VDC SUPPLY | C |
| 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 CLOSE 28VDC SUPPLY | C |
| MOTOR 2 GROUND/EARTH | E |
-------------------------------------------------------
(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).
「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 208
Feb 01/98 CES
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/close supply) between the ACTUATOR-LP FUEL VALVE, ENG 1 free connector 9QG-A, pin C and the RELAY-ENG/MASTER 1 (11QG), terminal A1
- 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/close supply) between the ACTUATOR-LP FUEL VALVE, ENG 1 free connector 9QG-B, pin C and the RELAY-ENG/MASTER 1 (11QG), terminal B1
- 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/close 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/close supply) between the RELAY-ENG/MASTER 1 (11QG), terminal B2 and the ENG/APU FIRE PANEL (1WD) free connector 1WD-B, pin A
- do a check (Ref. AWM 28-24-01) of the aircraft wiring(motor 1/close 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/close supply) between the ENG/APU FIRE PANEL (1WD) free
「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 209
Feb 01/98 CES
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 210
Feb 01/98 CES
TASK 28-24-00-810-803
Fuel ENG 1 FIRE PUSH Pushbutton Switch Does Not Close The Engine 1 LP Fuel Valve 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. 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(36)
