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A. If the Center Tank, Right Transfer Control Valve does not close:
- make sure the P/BSW-FUEL/CTR TK/MODE SELECT/AUTO (4QL) on the panel 40VU is set to MAN (released out)
- make sure the P/BSW-FUEL/CTR TK/R XFR (6QL) on the panel 40VU is set to OFF (released out)
- make sure the actuator is in the open position as shown on the FUEL System Display page by reference to the see/feel indicator on the actuator body.
(1) Disconnect the supply connector from the ACTUATOR-JET PUMP 2 CONTROL VALVE, CTR TK (12QL).
(2) With a multimeter do a check to see if 28VDC is available at pin B of the supply cable connector (Ref. ASM 28-26/01).
(a) If the 28VDC is available at pin B of the supply cable connector:
- replace the ACTUATOR-JET PUMP 2 CONTROL VALVE, CTR TK (12QL).
1 Do the test given in Para. 3.A.
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(b) If the 28VDC is not available at pin B of the supply cable connector:
1 Check/replace the DIODE (2408VD) located at 40VU210 (Ref. ASM
_
28-26/01).
2 Do the test given in Para. 3.A.
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3 If the fault continues:
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- check/replace the P/BSW-FUEL/CTR TK/R XFR (6QL).
4 Do the test given in Para. 3.A.
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5 If the fault continues:
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- check/replace the C/B-FUEL/CTR TK/L & R XFR/CTL & IND (2QL).
6 If the fault continues do a wiring check (Ref. ASM 28-26/01)
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on:
- the aircraft wiring between the pin B, of the actuator supply cable connector and the terminal 11, of the diode 2408VD
- the aircraft wiring between the terminal 26, of the diode 2408VD and the terminal B2, of the P/BSW (6QL)
- aircraft wiring between the terminal B3, of the P/BSW (6QL) and the C/B (2QL).
7 Repair/replace all the unserviceable wiring and connectors.
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8 Do the test given in Para. 3.A.
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「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 : 301-399, ∞∞28-26-00∞∞∞∞∞∞∞∞∞∞Page 211
May 01/04 CES TASK 28-26-00-810-806
Fuel, Main Transfer System - Control Valve 1 (Left) Does Not Open
WARNING : OBEY THE FUEL SAFETY PROCEDURES.
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WARNING : WHEN YOU DO WORK ON THE FUEL SYSTEM WIRING, YOU MUST USE TEST
_______ EQUIPMENT THAT IS APPROVED (REFER TO INTERNATIONAL OR NATIONAL SPECIFICATIONS FOR INTRINSICALLY SAFE TEST EQUIPMENT, E.G. EN50-020, UL913 OR EQUIVALENT). TEST EQUIPMENT THAT IS NOT APPROVED CAN CAUSE FIRE OR AN EXPLOSION.
1. Possible Causes
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- ACTUATOR-JET PUMP 1 CONTROL VALVE, CTR TK (11QL)
- RELAY-AUTO CTL No. 1 CTR TK (7QL)
- P/BSW-FUEL/CTR TK/L XFR (5QL)
- C/B-FUEL/CTR TK/L & R XFR/CTL & IND (1QL)
- the aircraft wiring between the pin A, of the actuator supply cable connector and the terminal B3, of the relay (7QL)
- the aircraft wiring between the terminal B2, of the relay (7QL) and the terminal B1, of the P/BSW (5QL)
- aircraft wiring between the terminal B3, of the P/BSW (5QL) and the C/B (1QL)
2. Job Set-up Information
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A. Fixtures, Tools, Test and Support Equipment
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REFERENCE QTY DESIGNATION
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No specific multimeter
B. Referenced Information
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REFERENCE DESIGNATION
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AMM 28-26-00-710-001 Operational Test of the Main Transfer System
ASM 28-26/01
3. Fault Confirmation
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A. Do the Operational Test of the Center Tank, Left Transfer Control Valve (Ref. AMM TASK 28-26-00-710-001).
「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 : 301-399, ∞∞28-26-00∞∞∞∞∞∞∞∞∞∞Page 212
May 01/04 CES 4. Fault Isolation
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A. If the Center Tank, Left Transfer Control Valve does not open:
- make sure the P/BSW-FUEL/CTR TK/MODE SELECT/AUTO (4QL) on the panel 40VU is set to MAN (released out)
- make sure the P/BSW-FUEL/CTR TK/L XFR (5QL) on the panel 40VU is set to ON (pushed in) 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(94)
