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indicate after the three tank levels have equalized (approximately one to eight minutes later).
Override Button
The override button allows fueling/defueling of the auxiliary or tail tanks individually, provided
the high-level sensor has not been triggered in the selected tank system. The override button
must be held for the duration of individual auxiliary or tail tank fueling/defueling.
FUEL SYSTEM
Description
Vol. 2 12−10−20
Oct 05/06
CL−605 Flight Crew Operating Manual
PSP 605−6
REFUELING/DEFUELING SYSTEM (CONT'D)
WARNING
IF INDIVIDUAL FUELING OF AUXILIARY OR TAIL TANKS HAS
BEEN CARRIED OUT USING THE OVERRIDE BUTTON, THE C
OF G LIMITS MUST BE CALCULATED MANUALLY.
FUEL/DEFUEL Panel Pressure Refueling
Figure 12−10−15
FUEL SYSTEM
Description
Vol. 2 12−10−21
Oct 05/06
CL−605 Flight Crew Operating Manual
PSP 605−6
REFUELING/DEFUELING SYSTEM (CONT'D)
Pressure Refueling (Auxiliary Tanks)
Figure 12−10−16
FUEL SYSTEM
Description
Vol. 2 12−10−22
Oct 05/06
CL−605 Flight Crew Operating Manual
PSP 605−6
REFUELING/DEFUELING SYSTEM (CONT'D)
Refuel/Defuel System Schematic
Figure 12−10−17
FUEL SYSTEM
Description
Vol. 2 12−10−23
Oct 05/06
CL−605 Flight Crew Operating Manual
PSP 605−6
REFUELING/DEFUELING SYSTEM (CONT'D)
Overwing Gravity Refueling
Gravity refueling will average 7% less volume than pressure refueling in the main and auxiliary
tank systems, since the main and auxiliary overwing filler points are below the highest point of
the respective tank. Overwing filler caps are installed on each wing. The auxiliary tank gravity
refueling panel and cap are situated on the right wing root. The tail tank cannot be gravity
refueled.
NOTE
During overwing gravity refueling, the pilots must ensure the aircraft
is within center-of-gravity limits.
CAUTION
Do not open the overwing fueling caps unless the fuel quantity in
the main tanks is below 93% capacity.
Pressure Defueling
• Select DEFUEL on the POWER switch;
• Ensure that the SOV switches of only those tanks that are to be defueled are in the
OPEN position, and the remaining SOV switches are in the CLOSED position; and
• Apply suction from the fuel tender (max −8 psi) at the fuel/defuel adapter.
When the auxiliary tank or either main tank are fully defueled, their respective SOV CLOSED
(green) light will illuminate, and the associated (white) SOV OPEN light will extinguish.
When defueling is complete, move the applicable tank SOV switches to CLOSE.
NOTE
If defueling pressure is applied and the POWER FUEL/DEFUEL
switch is inadvertently selected OFF, fuel will be drawn from the
main and auxiliary tanks only. Any fuel in the tail tank system will
remain trapped, possibly creating a tail-heavy condition.
Gravity Defueling
The main and auxiliary tanks can be gravity defueled through a tank drain valve, which has an
integral check valve. The tail cone tank may be drained through the DC-motor-operated dump
valve.
The tank drain valves are installed on the lowest access cover of each tank, and sealed from the
outside with a screwed-in cover plug. A special adapter is required to operate the check valve
for gravity defueling operations.
FUEL SYSTEM
Description
Vol. 2 12−10−24
Oct 05/06
CL−605 Flight Crew Operating Manual
PSP 605−6
CONTROLS AND INDICATORS
Fuel Control Panel
FUEL Control Panel
Figure 12−10−18
Fuel Quantity Indicators
Fuel quantity is displayed in the lower left side of the EICAS page. The sum of all tanks is
displayed next to the word TOTAL. The next line indicates, respectively, left main, center auxiliary
and right main tank fuel quantity. The tail tank readout is on the last line. Fuel quantity and fuel
flow are normally displayed in lb (pounds), but can also be configured in kg (kilograms) at the
Completion Center.
FUEL SYSTEM
Description
Vol. 2 12−10−25
Oct 05/06
CL−605 Flight Crew Operating Manual
PSP 605−6
CONTROLS AND INDICATORS (CONT'D)
Fuel quantity data can also be read on the optional interior refuel panel (behind the copilot seat).
NOTE
Total fuel quantity data must be entered in the FMS (PERF INIT page)
prior to flight.
Bulk Fuel Temperature Indication
Temperature is monitored by a probe in the left main tank, and displayed on the SUMMARY page.
Numerals are green at temperatures above −37°C. At or below −37°C, the numerals are amber,
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庞巴迪挑战者605机组操作手册 CL605-FUEL_SYSTEM(8)
