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• Connect the refuel tender to the single point adapter and adjust the tender pressure
as desired but not to exceed 50 psig
• Select the desired tank MANUAL switches to the OPEN position
• Verify that the selected tank quantities show increase
• Place the spring loaded SHUTOFF TEST switch in the TEST position and hold it
• Verify the PRESEL window displays SOV TEST
• Verify all tank quantities stop increasing to confirm the refuel valves have closed
• Verify the PRESEL window displays SOV STOP alternating with MANUAL and
does not display SOV FAIL
• Release the SHUTOFF TEST switch and verify tank quantities resume showing
increase with MANUAL showing steady in the PRESEL window
• When the desired fuel quantity for the selected tank is displayed on the tank
window, return the MANUAL switch to the CLOSE position to terminate the
fueling operation
• Return the MODE SELECTOR switch to AUTO REFUEL
• Disconnect the tender as required and return the RDCP MASTER switch to the
OFF position
• Secure RDCP access panel
GRAVITY REFUELING
The wing tanks may be refueled through over wing gravity fill adapters located on top
of both left and right wings. It is not possible to completely fill either wing tank by
gravity fueling, since the fill adapters are located outboard and below the maximum
fuel level.
The center tank may be refueled through a gravity fill adapter located on top of the
right hand wing.
SUCTION DEFUELING
Suction defueling of the fuel tanks is carried out by applying suction (recommended
pressure of -8 psig) to the single point refuel/defuel adapter, using the refuel/defuel
control panel.
P I LOT T R A I N I N G GU I D E
GLOBAL 5000 DIFFERENCES
APPENDIX 1
Appx-48 For Training Purposes Only
Sept 04
WING TANK
Suction defueling of the wing tanks is accomplished by opening a valve which
connects the refuel/defuel manifold to the engine feed line. This allows fuel to be
drawn out of the tank through the suction defuel check valve in the feed tank.
CENTER TANK
The center tank is defueled through the refuel/defuel shutoff valve.
SUCTION DEFUEL
The procedure for suction defuel is as follows:
• Open the RDCP access panel
• Place the MASTER switch in the ON position
• Allow the FMQGC to conduct BITE test until tank quantities are displayed steady
in all windows
NOTE
If a system fault is detected, the windows will display dashed
lines or error message(s) in the individual tank windows instead
of quantities. Do not proceed without investigating and rectifying
fault.
• Verify no error messages are displayed in any of the individual tank quantity
windows
• Verify all MANUAL tank switches are in the CLOSE position
• Verify the AUTO REFUEL switch is in the mid position marked AUTO REFUEL
• Note the quantities in the TOTAL and PRESEL windows. They should be the same
• Move the MODE SELECTOR switch to the position marked MANUAL DEFUEL
• Verify the PRESEL window displays the message DEFUEL
• Connect the refuel tender to the single point adapter and adjust the tender pressure
to negative 8 psig (suction) maximum
• Select the desired tank MANUAL switches to the OPEN position
• Verify tank quantities show decrease
• When the desired fuel quantity for the selected tank is displayed on the tank
window, return the MANUAL switch to the CLOSE position to terminate the
defueling operation
• Move the MODE SELECTOR switch to AUTO REFUEL
• Disconnect the tender as required and return the RDCP MASTER switch to the
OFF position
• Secure RDCP access panel
For Training Purposes Only
Sept 04
Appx-49
P I LOT T R A I N I N G GU I D E
GLOBAL 5000 DIFFERENCES
APPENDIX 1
PRESSURE DEFUELING
Pressure defueling of the fuel tanks is accomplished through the fuel shutoff valves
and single point adapter. Pressure defueling is identical to suction defueling, except
that primary defueling flow is provided by the AC boost pumps or DC auxiliary pump
in each feed tank.
NOTE
AC or DC electrical power is required to operate the airplane
pumps for this procedure.
Direct pressure defueling of the wing tank is accomplished using the AC boost pumps
or DC auxiliary pump in each feed tank.
Direct pressure defueling of the center tank is not possible. Center tank fuel may
however be transferred to the wing tanks using the center tank transfer pumps. From
there, it may then be defueled via the wing tank.
LATER VERSION RDCP REFUEL/DEFUEL PROCEDURES
　
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