(7) Do the Manual Refuel (Ref. AMM TASK 12-11-28-650-004)

 (8) CTL PNL-REFUEL/DEFUEL (800VU) Internal Trouble-shooting (Ref. ASM 28-25/01) and (Ref. ASM 28-25/03)

 (a) Remove the CTL PNL-REFUEL/DEFUEL (800VU) (Ref. AMM TASK 28-25-55-000-001).

 (b) Do a check of and replace, if necessary, the related:

 - SW-REFUEL VALVES/OPEN/NORM/SHUT, L WING TK (5QU) / SW-REFUEL VALVES/OPEN/NORM/SHUT, R WING TK (6QU) / SW-REFUEL VALVES/OPEN/NORM/SHUT, CTR TK (4QU).

 (c) Do a check of the CTL PNL-REFUEL/DEFUEL (800VU) wiring between:

 - the related terminal of terminal block 4001VT and terminal 1, of the SW-REFUEL VALVES/OPEN/NORMAL/SHUT (4/5/6QU) for the related tank

 - the terminal 2, of the SW-REFUEL VALVES/OPEN/NORMAL/SHUT (4/5/6QU) and the related pin on the CTL PNL-REFUEL/DEFUEL (800VU) receptacle 4024VC.

 NOTE : The wiring check up to terminal 3D, of the terminal block
____ 4001VT is given in Para. 4.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 ∞∞28-25-00∞∞∞∞∞∞∞∞∞∞Page 225
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 (d) Repair all the unserviceable wiring and connectors.

 (e) Install the CTL PNL-REFUEL/DEFUEL (800VU) (Ref. AMM TASK 28-25-55-400-001).

 (9) Do the Manual Refuel (Ref. AMM TASK 12-11-28-650-004).
 C. Procedure - In Manual Refuel (And Manual Plunger Control) The Applicable Refuel Valve Does Not Open And Fuel Cannot Be Put Into The Fuel Tank
 (1) Do a check off and replace, if necessary, the applicable items as follows:
 (a) The VALVE-REFUEL, L WING TK (7QU) (VALVE-REFUEL, R WING TK (8QU)) (Ref. AMM TASK 28-25-51-000-001) and (Ref. AMM TASK 28-25-51-400-001).
 NOTE : The manual plunger pilot hole can become blocked. This
____ will prevent the incoming fuel pressure from moving the main valve from closed to open.
 (b) The VALVE-REFUEL, CTR TK (10QU) (Ref. AMM TASK 28-25-51-000-002) and (Ref. AMM TASK 28-25-51-400-002).
 NOTE : The manual plunger pilot hole can become blocked. This
____ will prevent the incoming fuel pressure from moving the main valve from closed to open.
 (c) The CANISTER-REFUEL VALVE, L WING TK (19QM) (CANISTER-REFUEL VALVE, R WING TK (20QM)) (Ref. AMM TASK 28-25-52-000-001) and (Ref. AMM TASK 28-25-52-400-001).

 (d) The CANISTER-REFUEL VALVE, CTR TK (88QM) (Ref. AMM TASK 28-25-52-000-002) and (Ref. AMM TASK 28-25-52-400-002).

 (e) The REFUEL DIFFUSER ASSEMBLY - WING TANK (Ref. AMM TASK 28-25-42-000-001) and (Ref. AMM TASK 28-25-42-400-001).

 (f) The REFUEL DIFFUSER ASSEMBLY - CENTER TANK (Ref. AMM TASK 28-25-42-000-002) and (Ref. AMM TASK 28-25-42-400-002).

 (g) If the fault continues:

 (h) Do the Manual Refuel (Ref. AMM TASK 12-11-28-650-004).

 1_ Do a check of the fuel pipes between the applicable refuel
 valve and diffuser for a blockage.
 2_ Repair all the unserviceable pipes and connections.

 「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 ∞∞28-25-00∞∞∞∞∞∞∞∞∞∞Page 226
 May 01/04R
 CES

 TASK 28-25-00-810-805
 Refuel/Defuel Floodlight Failure
 WARNING : OBEY THE FUEL SAFETY PROCEDURES._______
 WARNING : WHEN YOU DO WORK ON THE FUEL SYSTEM WIRING, YOU MUST USE TEST_______ EQUIPMENT THAT IS APPROVED (REFER TO INTERNATIONAL OR NATIONAL SPECIFICATIONS FOR INTRINSICALLY SAFE TEST EQUIPMENT, E.G. EN50-020, UL913 OR EQUIVALENT). TEST EQUIPMENT THAT IS NOT APPROVED CAN CAUSE FIRE OR AN EXPLOSION.
 1. Possible Causes_______________
R R R R R R  - FLOODLIGHT-REFUEL/DEFUEL CTL PNL (32QU) - RELAY-REFUEL/DEFUEL CTL PNL DOOR POSITION (14QU) - CTL PNL-REFUEL/DEFUEL (800VU) - lamp - C/B-2QU - 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 -------------------------------------------------------------------------------

R R R  24-67-00-810-801 28-25-00-810-817 ESPM 20-00-00  Refueling not Possible No Power to the REFUEL/DEFUEL PNL (800VU) 
R  IPC 282554 
R  AMM 12-11-28-650-003  Pressure Refuel with Automatic Control 
　
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