「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 : 301-399, ∞∞28-21-00∞∞∞∞∞∞∞∞∞∞Page 292
May 01/04 CES
R e_ Install the contactor 20QA.
R f_ Install the the front cover of the contactor box 107VU.
R 18__ If the 115VAC supply is available, replace the CNTOR-R WING TK
R PUMP 2 SPLY (20QA) with a serviceable item.
R 19__ Set the R TK PUMPS 2 P/BSW (16QA) to ON (push in). This will
R energize the contactor 20QA and the 115VAC three phases will
R be supplied to the fuel pump connector 26QA-A.
R 20__ Use a multimeter to do a test, to make sure that each of the
R 115VAC three phases are available at the connector 26QA-A
R (Ref. ASM 28-21/02).
R 21__ Set the R TK PUMPS 2 P/BSW (16QA) to OFF (release out). This
R will de-energize the contactor 20QA.
R 22__ If the 115VAC is available at the end connector 26QA-A:
R a_ Install the front cover of the contactor box 107VU.
R b_ Connect the end connector 26QA-A to the fuel pump
R receptacle.
R c_ Do the test given in Para. 3.B.(2)(b).
R 23__ If the 115VAC is not available at the end connector 26QA-A, do
R a test of the aircraft wiring (three phase supply) between the
R CNTOR-R WING TK PUMP 2 SPLY (20QA) and the PUMP-FUEL No. 2, R
R WING TK (26QA) free connector (26QA-A) (Ref. ASM 28-21/02).
R NOTE : If necessary, you can divide the supply cable between____
R the contactor 20QA and the connector 26QA-A into two
R sections at the connector 4010VC (Ref. AWM 28-21-04).
R Do the test as follows:
R a_ Continuity test, with a multimeter, of each three phase
R wire (from end to end) (Ref. ESPM 20-52-21).
R b_ Insulation test, with a 500VDC insulation tester, between
R each phase wire (pole) and ground (Ref. ESPM 20-52-24).
R c_ Insulation test, with a 500VDC insulation tester, between
R each phase wire and the other two wires (pole to pole)
R (Ref. ESPM 20-52-24).
R d_ If during the wiring test in step 23_ the wiring is
R unserviceable, repair/replace the unserviceable wiring and
R connectors.
「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 : 301-399, ∞∞28-21-00∞∞∞∞∞∞∞∞∞∞Page 293
May 01/04 CES
R e_ If the fuel pump supply cable is found to be unserviceable
R (where it is routed across the lower surface of the wing)
R repair as follows:
R CAUTION : DO NOT USE IN-LINE SPLICES TO REPAIR SECTIONS OF_______
R ELECTRICAL CABLE THAT ARE BEHIND A FAIRING OR IN
R A CONDUIT.
R THIS WILL MAKE SURE THAT IT IS POSSIBLE TO SEE
R THE REPAIR FOR AN INSPECTION (REF. ESPM
R 20-53-29).
R f_ If necessary, replace the unserviceable:
R - protective sleeve
R - wire(s)
R - connector 26QA-A.
R g_ Connect the new wire(s) of the fuel pump supply cable where
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