- RELAY-CTR TK PUMP 1 CTL (51QA)
- RELAY-CTR TK LOW LEVEL, No 1 (45QA)
- RELAY-CTR TANK PUMP 1, LATCHED OFF (67QA)
- RELAY REFUEL/DEFUEL CTL PNL DOOR POSITION (14QU).
b Do a check of (Ref. ASM 28-21/04), the:
_
- aircraft wiring (logic 2/recirc. off (ground) line) between the FLSCU-1(7QJ) rack connector AA, pin 11D and the RELAY-CTR TK PUMP 1 CTL (51QA), terminal A3
- aircraft wiring (CTR TK low level 1 off (ground) line) between the FLSCU-1(7QJ) rack connector AA, pin 8B and the RELAY-CTR TK LO LVL, No 1 (45QA), terminal X2
- aircraft wiring (CTR TK low level 1 off latch (ground) line) between the RELAY (45QA) terminal X2 and the RELAY (67QA), terminal A
- aircraft wiring (CTR TK Pump 1 - Auto off (ground) line) between the RELAY (51QA) terminal A2 and the RELAY (41QA), terminal Z
- aircraft wiring (CTR TK Pump 1 - Auto off (ground) line) between the RELAY (67QA) terminal 4 and the RELAY (41QA), terminal Z
- aircraft wiring (CTR TK low level 1 off latch (ground) line) between the RELAY (67QA) terminal 2 and the RELAY (14QU), terminal C3.
c Repair all the unserviceable wiring and connectors.
_
d Do the test given in Para. 3.A.
_
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 051-099, 101-149, 151-199, ∞∞28-21-00∞∞∞∞∞∞∞∞∞∞Page A270
201-299, 401-499, Aug 01/05 CES
(c) The right side center tank pump 2 is 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 center tank pump 2:
_ 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:
_
- install the original FLSCU-2 (9QJ) removed from its rack in Step 1_ (Ref. AMM TASK 28-46-34-400-001).
4 If the fault continues:
_
a Do a check of (Ref. ASM 28-21/04), and replace if
_
necessary, the:
- RELAY-CTR TK AUTO CONTROL, PUMP 2 (42QA)
- RELAY-CTR TK PUMP 2 CTL (52QA)
- RELAY-CTR TK LOW LEVEL, No 2 (46QA)
- RELAY-CTR TANK PUMP 2, LATCHED OFF (68QA)
- RELAY REFUEL/DEFUEL CTL PNL DOOR POSITION (14QU).
b Do a check of (Ref. ASM 28-21/04), the:
_
- aircraft wiring (logic 2/recirc. off (ground) line) between the FLSCU-2 (7QJ) rack connector AA, pin 11D and the RELAY-CTR TK PUMP 2 CTL (52QA), terminal A3
- aircraft wiring (CTR TK low level 2 off (ground) line) between the FLSCU-2(9QJ) rack connector AA, pin 8B and the RELAY-CTR TK LO LVL, No 2 (46QA), terminal X2
- aircraft wiring (CTR TK low level 2 off latch (ground) line) between the RELAY (46QA) terminal X2 and the RELAY (68QA), terminal A
- aircraft wiring (CTR TK Pump 2 - Auto off (ground) line) between the RELAY (52QA) terminal A2 and the RELAY (42QA), terminal Z
- aircraft wiring (CTR TK Pump 2 - Auto off (ground) line) between the RELAY (68QA) terminal 4 and the RELAY (42QA), terminal Z
- aircraft wiring (CTR TK low level 2 off latch (ground) line) between the RELAY (68QA) terminal 2 and the RELAY (14QU), terminal D3.
c Repair all the unserviceable wiring and connectors.
_
d Do the test given in Para. 3.A.
_
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 051-099, 101-149, 151-199, ∞∞28-21-00∞∞∞∞∞∞∞∞∞∞Page A271
201-299, 401-499, Aug 01/05 CES
(8) If the fault continues, do tests of the fuel output pressure from each of the three fuel pumps (on the applicable side of the aircraft) as follows:
(a) Wing Tank Pumps
(b) Center Tank Pump 1 Go to the AMM TASK, Installation of the Sequence Valve (Ref.
1_ Go to the AMM TASK, Installation of the Sequence Valve (Ref.
AMM TASK 28-21-45-400-003).
2_ Do Para. 4.D. (Preparation for Test) thru Para. 4.G (Test of
the Sequence Valve), on the L(R) wing tank fuel pump, No. 1.
3_ Make sure that the fuel pressure is as specified (Ref. AMM
TASK 28-21-45-400-003).
NOTE : The fuel pressure given in the test is without a fuel____
transfer.
NOTE : The fuel output pressure of the wing tank fuel pumps is____
less than that of the center tank fuel pumps.
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本文链接地址：A320 Trouble Shooting Manual 排故手册 FUEL 燃油1(142)
