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R  12__  Raise the front face of the C/B panel 121VU to the closed
R  (vertical) position and secure. 
R  13__  In the forward avionics bay remove the front cover of the
R  contactor box 107VU (Ref. AWM 93-01-07). 
R  14__  Do a visual inspection as specified in step (j)2_ and replace,
R  if necessary: 
R  a_  The CNTOR-L WING TK PUMP 1 SPLY (17QA).
R  b_  The connector 1264VC-A and related receptacle.
R  15__  Remove the contactor 17QA.
R  16__  Use a multimeter and make sure that each of the 115VAC three
R  phases are available at the contactor base input sockets (8, 6 
R  and 2) (Ref. ASM 28-21/01). 
R  17__  If the 115VAC supply to the contactor 17QA is not available,
R  do a test of the aircraft wiring (three phase supply) between 
R  the C/B-FUEL/L WING TK/PUMP 1 SPLY (1QA) and the CNTOR-L WING 
R  TK PUMP 1 SPLY (17QA) (Ref. ASM 28-21/01). 
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_ Repair/replace the unserviceable wiring and connectors.

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R e_ Install the contactor 17QA.

R  f_  Install the the front cover of the contactor box 107VU.
R  18__  If the 115VAC supply is available, install the contactor 17QA.
R  19__  Set the L TK PUMPS 1 P/BSW (13QA) to ON (push in). This will
R  energize the contactor 17QA and the 115VAC three phases will 
R  be supplied to the contactor 17QA output terminals, 7, 5 and 
R  1. 
R  20__  Use a multimeter to do a test, to make sure that each of the
R  115VAC three phases are available at the terminal block 
R  1176VT, terminals 8A, 8F and 9B (Ref. AWM 28-21-01). 
R  21__  Set the L TK PUMPS 1 P/BSW (13QA) to OFF (released out). This
R  will de-energize the contactor 17QA. 
R  22__  If the 115VAC is not available at the terminal block, replace
R  the CNTOR-L WING TK PUMP 1 SPLY (17QA). 
R  a_  Install the front cover of the contactor box 107VU.
R  23__  If the 115VAC is available at the terminal block, do a test of
R  the aircraft wiring (three phase supply) between the CNTOR-L 
R  WING TK PUMP 1 SPLY (17QA) and the PUMP-FUEL No. 1, L WING TK 
R  (21QA) free connector 21QA-A (Ref. ASM 28-21/01). 
R  NOTE : If necessary, you can divide the supply cable between____ 
R  the contactor 17QA and the connector 21QA-A into two 
R  sections at the connector 4009VC (Ref. AWM 28-21-01). 
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. 
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:

 「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 215
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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. 
　
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