_______________
A. If the FUEL - AUTO TRANSFER FAULT warning/FAULT legend is given or the Main Transfer System Auto Control fails to operate as specified:
(1) Refuel (Ref. AMM TASK 12-11-28-650-003), defuel (Ref. AMM TASK 28-25-00-650-001) or transfer fuel (Ref. AMM TASK 28-25-00-869-001) to obtain these fuel levels:
- left wing tank 5100 kg (1124 lb)
- right wing tank 5100 kg (1124 lb)
- center tank more than 300 kg (660 lb).
(2) Set the Electronic Centralized Aircraft Monitoring ECAM system to on (Ref. AMM TASK 31-60-00-860-001), then: - on the ECAM control panel, push the FUEL P/BSW in
- make sure that the FUEL page shows on the ECAM lower Display Unit (DU).
(3) Push the P/BSW-FUEL/CTR TK/MODE SEL/AUTO (4QL) in (set to AUTO).
(4) Push all the wing tank fuel pump P/BSWs in (set to on)
(5) Push both the center tank L and R XFR P/BSWs in (set to on).
(6) Examine the FUEL page on the ECAM lower DU.
(7) If the following occurs:
(a) Center tank left side XFR shown off. 1 Temporarily remove the FLSCU-1 (7QJ) from its rack (Ref. AMM
_
TASK 28-46-34-000-001).
2 Examine the FUEL page on the ECAM lower DU.
_
3 If the left side XFR:
_ a Operates correctly and shows on:
_
- replace the FLSCU-1 (7QJ) (Ref. AMM TASK 28-46-34-000-001), and (Ref. AMM TASK 28-46-34-400-001).
b Shows off:
_
- re-install the original FLSCU-1 (7QJ) (Ref. AMM TASK 28-46-34-400-001).
4 If the fault continues:
_ a Do a check (Ref. ASM 28-26/02) and replace if necessary:
_
- RELAY-AUTO CTL, No 1 CTR TK (7QL)
- RELAY-TANK LOW LVL No 1 CTR (9QL).
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b_ Do a check (Ref. ASM 28-26/02) of the:
- aircraft wiring (logic 2/recirc. off (ground) line)
between the FLSCU-1 (7QJ) rack connector AA, pin 11D and
the RELAY-AUTO CTL, No 1 CTR (7QL), terminal X2
- aircraft wiring (CTR TK low level off (ground) line)
between the FLSCU-1 (7QJ) rack connector AA, pin 8B and
the RELAY-TANK LOW LVL No 1 CTR(9QL), terminal X2
- aircraft wiring (CTR TK low level off + 300 seconds
(ground) line) between the RELAY (9QL), terminal B1 and
the RELAY (7QL), terminal X2.
c Repair all the unserviceable wiring and connectors.
_
d Do the test given in Para. 3.A.
_
(b) Center tank right side XFR shown off.
1 Temporarily remove the FLSCU-2 (9QJ) from its rack (Ref. AMM
_ TASK 28-46-34-000-001).
2 Examine the FUEL page on the ECAM lower DU.
_
3 If the right side XFR:
_ a Operates correctly and shows on:
_
- replace the FLSCU-2 (9QJ) (Ref. AMM TASK 28-46-34-000-001), and (Ref. AMM TASK 28-46-34-400-001).
b Shows off:
_
- re-install the original FLSCU-2 (9QJ) (Ref. AMM TASK 28-46-34-400-001).
4 If the fault continues:
_
a Do a check (Ref. ASM 28-26/02) and replace if necessary:
_
- RELAY-AUTO CTL, No 2 CTR TK (8QL)
- RELAY-TANK LOW LVL No 2 CTR (10QL).
b Do a check (Ref. ASM 28-26/02) of the:
_
- aircraft wiring (logic 2/recirc. off (ground) line) between the FLSCU-2 (9QJ) rack connector AA, pin 11D and the RELAY-AUTO CTL, No 2 CTR (8QL), terminal X2
- aircraft wiring (CTR TK low level off (ground) line) between the FLSCU-2 (9QJ) rack connector AA, pin 8B and the RELAY-TANK LO LVL No 2 CTR(10QL), terminal X2
- aircraft wiring (CTR TK low level off + 300 seconds (ground) line) between the RELAY (10QL), terminal B1 and the RELAY (8QL), terminal X2.
c Repair all the unserviceable wiring and connectors.
_
d Do the test given in Para. 3.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 : 301-399, ∞∞28-26-00∞∞∞∞∞∞∞∞∞∞Page 205
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TASK 28-26-00-810-802
Fuel, Main Transfer System - Both Control Valves Do Not Close 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(91)
