- the P/BSW-FUEL/L TK PUMPS/1 (13QA), terminal B1 and the CNTOR-L WING TK PUMP 1 SPLY (17QA), terminal X
- the CNTOR-L WING TK PUMP 1 SPLY (17QA), terminal Z and the CNTOR-L WING TK STBY SPLY PUMP 1 (53QA), terminal 4
- the CNTOR-L WING TK STBY SPLY PUMP 1 (53QA), terminal 3 and the aircraft ground DC1 at 1176VT.
(b) Repair all the unserviceable wiring and connectors (Ref. ESPM 20-00-00).
(c) 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 : ALL ∞∞28-21-00∞∞∞∞∞∞∞∞∞∞Page A211
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CES
TASK 28-21-00-810-808
Fuel Pumps - Right Wing Tank Fuel Pump No. 1 Contactor Control Failure (Normal Supply)
WARNING : OBEY THE FUEL SAFETY PROCEDURES.
_______
R WARNING : WHEN YOU DO WORK ON THE FUEL SYSTEM WIRING, YOU MUST USE TEST
_______ R EQUIPMENT THAT IS APPROVED (REFER TO INTERNATIONAL OR NATIONAL R SPECIFICATIONS FOR INTRINSICALLY SAFE TEST EQUIPMENT, E.G. EN50-020, R UL913 OR EQUIVALENT). TEST EQUIPMENT THAT IS NOT APPROVED CAN CAUSE R FIRE OR AN EXPLOSION.
1. Possible Causes
_______________
- CNTOR-R WING TK PUMP 1 SPLY (18QA)
- CNTOR-R WING TK STBY SPLY, PUMP 1 (54QA)
- P/BSW-FUEL/R TK PUMPS/1 (14QA)
- RELAY-BUS 1/ESS. R TK PUMP 1 (64QA)
- P/BSW-EMER ELEC PWR/SMOKE DRILL (13XU)
- aircraft wiring
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific multimeter
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
28-21-00-810-802 Fuel Pumps - Right Wing Tank Fuel Pump No. 1 (Inner)
22QA System Malfunction
ESPM 20-00-00
AMM 28-21-00-710-001 Operational Test of the Wing-Tank Fuel Control
ASM 28-21/01
3. Fault Confirmation
__________________
A. Test
(1) If necessary, do the job set-up of the Operational Test of the Wing Tanks Fuel Control (Ref. AMM TASK 28-21-00-710-001).
(2) Push (in) the R TK PUMPS 1 P/BSW (14QA).
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(3) Examine the right wing-tank fuel-pump 1 symbol, on the FUEL system page, at the ECAM lower display unit.
(4) If the symbol shows:
- green in-line, no more maintenance steps are necessary (normal operation)
- amber cross-line, do Para. 4.A.
- amber LO, do the TSM procedure Right Wing Tank Pump No. 1 (Inner) 22QA System Malfunction (Ref. TASK 28-21-00-810-802).
NOTE : The amber LO is only shown when the signals that follow occur
____
at the same time:
- the contactor closed (on) and
- the right tank pump 1 low fuel pressure.
4. Fault Isolation
_______________
A. Procedure
(1) Do the initial checks as given in:
- step (a), with a multimeter
and/or
- step (b), by substitution and replacement.
(a) Do a check of the electrical circuits (Ref. ASM 28-21/01) as follows:
1 At the panel (contactor box) 107VU, remove the contactor-18QA.
_
2 At the contactor (relay) base 18QA-A, make sure that:
_
- a ground is available at terminal Z (through the closed, de-energized, contacts of contactor-54QA, terminals 4 to 3)
- 28VDC is available at terminal X, when the P/BSW-14QA is set to on (through the closed contacts B3 to B1).
3 Replace all the unserviceable items.
_ 4 Make sure that the contactor-18QA removed in step 1_ is
_
installed.
5 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 : ALL ∞∞28-21-00∞∞∞∞∞∞∞∞∞∞Page A213
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(b) Swap (interchange) the items listed that follow, one at a time, with those from the left wing-tank fuel-pump 1 system where applicable: 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1(117)
