(2) If a 1 is shown in bit position C6:
(a) Disconnect the electrical connector from the actuator-defuel/transfer valve (11QU).
(b) With a multimeter do a test to see if 28VDC is available between pins A (+ve) and E (-ve) at the supply cable connector end.
(3) If a 1 shows and 28VDC is available, do a check/replace the ACTUATOR-DEFUEL/TRANSFER VALVE (11QU), (Ref. AMM TASK 28-25-53-000-001) and (Ref. AMM TASK 28-25-53-400-001).
(4) Do the test given in Para. 3.A.
(5) If 28VDC is not available (in Para. (2)(b)) do a check (Ref. ASM 28-25/01)/replace the SW-MODE SELECT/REFUEL/OFF/DEFUEL/XFR (3QU) 800VU.
「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 ∞∞28-25-00∞∞∞∞∞∞∞∞∞∞Page 232
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(6) Do the test given in Para. 3.A.
(7) If the fault continues, do a check (Ref. ASM 28-25/01)/replace the RELAY-REFUEL/DEFUEL CTL PNL DOOR POSITION (14QU) 92VU.
(8) Do the test given in Para. 3.A.
(9) If the fault continues, do a check (Ref. ASM 28-25/01)/replace the RELAY-DEFUEL/XFR VALVE POSITION (19QU) 92VU.
(10) Do the test given in Para. 3.A.
(11) If the fault continues do a wiring check (Ref. ASM 28-25/01) of the:
- aircraft wiring between the ACTUATOR-DEFUEL/XFR VALVE (11QU) supply connector pin A, and the SW-MODE SELECT/REFUEL/OFF/DEFUEL/XFR (3QU), terminal 3A
- aircraft wiring between the ACTUATOR-DEFUEL/XFR VALVE (11QU) supply connector pin D, and the RELAY-DEFUEL/XFR VALVE POSITION (19QU), terminal X
- aircraft wiring between the RELAY-REFUEL/DEFUEL CTL PNL DOOR POSITION (14QU), terminal D1, and the RELAY-DEFUEL/XFR VALVE POSITION (19QU), terminal Z
- aircraft wiring between the RELAY-REFUEL/DEFUEL CTL PNL DOOR POSITION (14QU), terminal A1, and the ANN LT-DEFUEL/XFR/OPEN (21QU), terminal 4, at 800VU
- aircraft wiring between the RELAY-DEFUEL/XFR VALVE POSITION (19QU), terminal 1, and the ANN LT-DEFUEL/XFR/OPEN (21QU), terminal I, at 800VU.
(12) Repair all the unserviceable wiring and connectors.
(13) Do the test given in Para. 3.A.
**ON A/C 301-399,
A. If the floodlight-refuel/defuel control-panel door does not operate:
- go to (Ref. TASK 28-25-00-810-805).
(1) If the floodlight-refuel/defuel control-panel door operates:
(a) Make sure the SW-MODE SELECT/REFUEL/OFF/DEFUEL/XFR (3QU) is set to DEFUEL.
(b) Set the MCDU to CFDS(FUEL), Input Parameters Page 3.
(c) Examine bit position B2.
(2) If a 1 is shown in bit position B2:
(a) Disconnect the electrical connector from the Actuator-Defuel/Transfer Valve (11QU).
「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 ∞∞28-25-00∞∞∞∞∞∞∞∞∞∞Page 233
Nov 01/04R CES
(b) With a multimeter do a test to see if 28VDC is available between pins A (+ve) and E (-ve) at the supply cable connector end.
(3) If a 1 shows and 28VDC is available, do a check/replace the ACTUATOR-DEFUEL/TRANSFER VALVE (11QU), (Ref. AMM TASK 28-25-53-000-001) and (Ref. AMM TASK 28-25-53-400-001).
(4) Do the test given in Para. 3.A.
(5) If 28VDC is not available (in Para. (2)(b)) do a check (Ref. ASM 28-25/01)/replace the SW-MODE SELECT/REFUEL/OFF/DEFUEL/XFR (3QU) 800VU.
(6) Do the test given in Para. 3.A.
(7) If the fault continues check (Ref. ASM 28-25/01)/replace the
RELAY-REFUEL/DEFUEL CTL PNL DOOR POSITION (14QU) 92VU.
(8) Do the test given in Para. 3.A.
(9) If the fault continues do a check (Ref. ASM 28-25/01)/replace the
RELAY-DEFUEL/XFR VALVE POSITION (19QU) 92VU.
(10) Do the test given in Para. 3.A.
(11) If the fault continues do a wiring check (Ref. ASM 28-25/01) of the:
- aircraft wiring between the ACTUATOR-DEFUEL/XFR VALVE (11QU) supply connector pin A, and the SW-MODE SELECT/REFUEL/OFF/DEFUEL/XFR (3QU), terminal 3A
- aircraft wiring between the ACTUATOR-DEFUEL/XFR VALVE (11QU) supply connector pin D, and the RELAY-DEFUEL/XFR VALVE POSITION (19QU), terminal X
- aircraft wiring between the RELAY-REFUEL/DEFUEL CTL PNL DOOR POSITION (14QU), terminal D1, and the RELAY-DEFUEL/XFR VALVE POSITION (19QU), terminal Z
- aircraft wiring between the RELAY-REFUEL/DEFUEL CTL PNL DOOR POSITION (14QU), terminal A1, and the ANN LT-DEFUEL/XFR/OPEN (21QU), terminal 4, at 800VU 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(74)
