Marquis 720 FLY, Owner'S Manual

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FUEL SUPPLY SHUT-OFF VALVES
Fuel supply shut-off valves a re located on top of the fuel tanks, near the aft inboard corner . THE VALVES MUST BE OPEN WHEN
OPERATING THE ENGINES .
SIGHT GAUGE VALVES
In addition to the fuel gauges located at the helms, there is a visual fuel sight gauge mounted on each standard fuel tank . Each sight
gauge has two valves, located at the top and bottom of the gauge . To visually check the fuel level in a tank, open both of the tank’s
sight gauge valves .
FUEL TANK VENTS
Each fuel tank is vented overboard . As the fuel tanks get filled, air is displaced from inside the tanks, and escapes through the vents .
However, when the engines are running, air enters the fuel tanks through the vents to displace the fuel being used .
AUXILIARY FUEL TANK
The optional auxiliary fuel tank comes with a fuel transfer pump, located in the engine room on the PORT aft bulkhead . Use the pump
to transfer fuel from the auxiliary tank to either of the main fuel tanks .
Transferring fuel:
Open the fuel transfer shut-off valve on both the auxiliary fuel tank and the main fuel tank, PORT or STBD, that fuel will be 1 .
transferred to .
The shut-off valve on the auxiliary tank is located on the top of the tank near the aft edge; the shut-off valves on the main
tanks are located just forward of the fuel supply shut-off valves .
Locate the fuel transfer pump . Select either the PORT or STDB main tank to transfer fuel to . Refer to the OEM information for 2 .
details on operating the transfer pump .
Activate the transfer pump . Turn the pump OFF when the desired amount of fuel has been transferred . Fuel can be transferred
3 .
to the other main tank if needed .
Close all of the fuel transfer shut-off valves once complete .
4 .
NOTE: Use the fuel level gauge located on the DC Distribution Center, located in the Salon, to monitor the fuel level in
the auxiliary fuel tank .
e
ngine
r
oom
V
entilation
The engine room is equipped with a ventilation system that consists of intake ducts, exhaust ducts, and bilge blowers . The ventilation
system is designed to remove fuel vapor and excess heat from the engine room . The bilge blowers operate when the engines are
running, as long as ALL four Bilge Blower circuit breakers are ON .
The bilge blower circuit breakers are located on the DC Distribution
Panel, in the Salon aft STDB .
The engine room ventilation system must be kept in proper operating condition . To maintain the ventilation system:
Inspect the intake and exhaust ducts regularly to keep free of obstructions, make sure the ducts have not collapsed or torn . •
Inspect the blowers to ensure they are operating properly . •
Replace worn components with new components of the same type . •
OPERATING THE bILGE bLOWERS:
Provide power to the circuit breakers on the DC Bus Distribution Panel . 1 .
Switch ON the 1a . DC MAIN BREAKER SALON PANEL circuit breaker .
OPERATING THE bILGE bLOWERS (CONT’D):
Provide power to the circuit breakers on the DC Bus Distribution Panel . 1 .
Switch ON the 1b . BILGE BLOWER PORT and BILGE BLOWER STDB circuit breakers .
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P
roPulsion
s
eCTion
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