(3)
 Make sure that the chocks do not touch the tires. The weight of the fuel can lower the aircraft and cause the chocks to catch.

 (4)
 Put the safety barriers in position.

 Refuel/Defuel Control Panel 800VU, Preselector 5QT and Indicator 6QT Figure 303/TASK 12-11-28-991-004
 1EFF : ALL 1 12-11-28Page 314 1 1 May 01/05R 1 1 1CES 1

 **ON A/C ALL
 Subtask 12-11-28-281-051
 B. Drain the Water from the Fuel
 (1) Make sure that a fuel sampling for water contamination check is done to the fuel in the fuel tanker/pump unit (Ref. TASK 12-32-28-281-001).

R **ON A/C 001-049, 052-099, 101-149, 151-199, 201-299, 301-399, 401-499,
 Subtask 12-11-28-860-050
 C. Aircraft Maintenance Configuration WARNING : MAKE SURE THAT THE FUEL SUPPLY HOSE IS CORRECTLY CONNECTED TO
_______ THE COUPLING BEFORE YOU REFUEL/DEFUEL THE AIRCRAFT. DO NOT CONNECT THE FUEL SUPPLY HOSE IF THERE ARE SIGNS OF DAMAGE TO THE AIRCRAFT COUPLING LUGS OR SLOTS.
 (1) Make sure that the aircraft and the fuel tanker/pump unit are grounded correctly (Ref. TASK 12-34-24-869-001) and electrically bonded together correctly.
 NOTE : Bonding is essential, grounding is recommended.
____
 (2)
 Remove the refuel coupling cap (41QM).

 (3)
 Make sure that the coupling of the fuel supply-hose is clean, then connect it to the aircraft refuel coupling.

 (4)
 If you have external power available, energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).

R  **ON A/C 051-051, 
R  Subtask 12-11-28-860-050-A 
R  C. Aircraft Maintenance Configuration 
R  WARNING : MAKE SURE THAT THE FUEL SUPPLY HOSE IS CORRECTLY CONNECTED TO_______ 
R  THE COUPLING BEFORE YOU REFUEL/DEFUEL THE AIRCRAFT. DO NOT 
R  CONNECT THE FUEL SUPPLY HOSE IF THERE ARE SIGNS OF DAMAGE TO 
R  THE AIRCRAFT COUPLING LUGS OR SLOTS. 
R  (1) Make sure that the aircraft and the fuel tanker/pump unit are 
R  grounded correctly (Ref. TASK 12-34-24-869-001) and electrically 
R  bonded together correctly. 
R  NOTE : Bonding is essential, grounding is recommended.____ 
R  (2) Remove the applicable refuel coupling cap 101QM(41QM). 
R  (3) Make sure that the coupling of the fuel supply-hose is clean, then 
R  connect it to the aircraft refuel coupling. 
R  (4) If you have external power available, energize the aircraft 
R  electrical circuits (Ref. TASK 24-41-00-861-002). 
R  **ON A/C ALL
 Subtask 12-11-28-010-051-A
 D. Get Access
 (1) Open the access door 192MB.

R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,

 Subtask 12-11-28-860-051
 E. Aircraft Maintenance Configuration
 (1) If you do not have ground power available: WARNING : WHEN YOU REFUEL THE AIRCRAFT WITH BATTERY POWER, IT IS NOT
_______ ALWAYS POSSIBLE TO REFUEL TO FULL CAPACITY. THIS IS BECAUSE THE INTERCELL TRANSFER VALVES ARE NOT ALWAYS IN THE CORRECT POSITION.
 (a) On the refuel/defuel control panel (800VU), put the BATT POWER switch to the ON position.
 NOTE : The HOT BUSS 701PP is energized for ten minutes only (this
____ is to prevent discharge of the aircraft batteries), unless you put the MODE SELECT switch (on the refuel/defuel panel) to REFUEL.
 **ON A/C 301-399,
 Subtask 12-11-28-860-051-A
 E. Aircraft Maintenance Configuration
 (1)
 Make sure that you do not remove the power from the FQIC until the refuel procedure is complete.

 (2)
 If you do not have ground power available, on the refuel/defuel control panel (800VU), put the BATT POWER switch to the ON position.

 NOTE : The HOT BUSS 701PP is energized for ten minutes only (this is
____ to prevent discharge of the aircraft batteries), unless you put the MODE SELECT switch (on the refuel/defuel panel) to REFUEL.

 **ON A/C ALL

 Subtask 12-11-28-740-050
 F. Test of the Refuel Panel 800VU
 (1) Do this test:
 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the panel 800VU:  On the panel 800VU:
 - put the TEST switch to the LTS position and hold it there  - the HI LVL lights and the DEFUEL/XFROPEN lights are on and the CKPT and END lights come on - the FUEL QTY, PRESELECTED and ACTUAL displays show all 8's.
　
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