a_ The CNTOR-L WING TK PUMP 2 SPLY (19QA).
b_ The connector 1266VC-A and related receptacle.
15__ Remove the contactor 19QA.
16__ Use a multimeter and make sure that each of the 115VAC three phases are available at the contactor base input sockets (8, 6 and 2) (Ref. ASM 28-21/02).
17__ If the 115VAC supply to the contactor 19QA is not available, do a test of the aircraft wiring (three phase supply) between the C/B-FUEL/L WING TK/PUMP 2 SPLY (7QA) and the CNTOR-L WING TK PUMP 2 SPLY (19QA) (Ref. ASM 28-21/02). Do the test as follows:
a_ Continuity test, with a multimeter, of each three phase wire (from end to end) (Ref. ESPM 20-52-21).
b_ Insulation test, with a 500VDC insulation tester, between each phase wire (pole) and ground (Ref. ESPM 20-52-24).
c_ Insulation test, with a 500VDC insulation tester, between each phase wire and the other two wires (pole to pole) (Ref. ESPM 20-52-24).
d_ Repair/replace the unserviceable wiring and connectors.
e_ Install the contactor 19QA.
f_ Install the the front cover of the contactor box 107VU.
18__ If the 115VAC supply is available, replace the CNTOR-L WING TK PUMP 2 SPLY (19QA) with a serviceable item.
19__ Set the L TK PUMPS 2 P/BSW (15QA) to ON (push in). This will energize the contactor 19QA and the 115VAC three phases will be supplied to the fuel pump connector 25QA-A.
20__ Use a multimeter to do a test, to make sure that each of the 115VAC three phases are available at the connector 25QA-A (Ref. ASM 28-21/02).
21__ Set the L TK PUMPS 2 P/BSW (15QA) to OFF (release out). This will de-energize the contactor 19QA.
22__ If the 115VAC is available at the end connector 25QA-A:
a_ Install the front cover of the contactor box 107VU.
b_ Connect the end connector 25QA-A to the fuel pump receptacle.
「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, 101-105, 151-154, ∞∞28-21-00∞∞∞∞∞∞∞∞∞∞Page 259
201-207, May 01/05 CES
23
__
c Do the test given in Para. 3.B.(2)(b).
_
If the 115VAC is not available at the end connector 25QA-A, do a test of the aircraft wiring (three phase supply) between the CNTOR-L WING TK PUMP 2 SPLY (19QA) and the PUMP-FUEL No. 2, L WING TK (25QA) free connector 25QA-A (Ref. ASM 28-21/02).
NOTE : If necessary, you can divide the supply cable between
____ the contactor 19QA and the connector 25QA-A into two sections at the connector 7117VC (Ref. AWM 28-21-03).
Do the test as follows:
a Continuity test, with a multimeter, of each three phase
_ wire (from end to end) (Ref. ESPM 20-52-21).
b Insulation test, with a 500VDC insulation tester, between
_ each phase wire (pole) and ground (Ref. ESPM 20-52-24).
c Insulation test, with a 500VDC insulation tester, between
_ each phase wire and the other two wires (pole to pole) (Ref. ESPM 20-52-24).
d If during the wiring test in step 23_ the wiring is
_ unserviceable, repair/replace the unserviceable wiring and connectors.
e If the fuel pump supply cable is found to be unserviceable
_ (where it is routed across the lower surface of the wing) repair as follows:
CAUTION : DO NOT USE IN-LINE SPLICES TO REPAIR SECTIONS OF
_______ ELECTRICAL CABLE THAT ARE BEHIND A FAIRING OR IN A CONDUIT. THIS WILL MAKE SURE THAT IT IS POSSIBLE TO SEE THE REPAIR FOR AN INSPECTION (REF. ESPM 20-53-29).
f If necessary, replace the unserviceable:
_
- protective sleeve
- wire(s)
- connector 25QA-A.
g Connect the new wire(s) of the fuel pump supply cable where
_ the wiring passes through the junction box (bracket assembly), by a splice(s) (Ref. ESPM 20-53-21).
h Make sure that the length of the new supply cable when
_ assembled, between the front face of the connector 25QA-A and the forward face of the cable guide (that shows outside the wing-skin) is 1320 mm (51.9685 in.).
「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, 101-105, 151-154, ∞∞28-21-00∞∞∞∞∞∞∞∞∞∞Page 260
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本文链接地址：A320 Trouble Shooting Manual 排故手册 FUEL 燃油1(92)
