Refueling; General; Pressure Refueling - BOMBARDIER Challenger 601-3A CL-600-2B16 Pilot Training Manual

REFUELING

GENERAL

All tanks are normally fueled by means of the
single-point pressure adapter located in the
right wing root (Figure 5-13). The refueling
system is controlled from a swing-out control
panel located in the fillet above the right wing.
The system has automatic fuel cutoff to pre-
vent overfilling.
Overwing or gravity fueling is also possible.
However, due to the location of the filler caps
(Figure 5-13), it is not possible to fill the main
tanks completely. A separate gravity filler
port is provided for each main tank and the aux-
iliary tank. The forward and aft tanks are
gravity fueled through the auxiliary tank.
CAUTION
Never open an overwing filler cap if
that main tank contains more than
4,000 pounds or if the level is not
known. Fuel in excess of 4,000 pounds
will spew from the filler if opened.
LEGEND
VENT LINES
REFUELING PRESSURE
LEVEL
CONTROL
VALVE
CL-600-2B16 PILOT TRAINING MANUAL
TANK SOV
VENT
VENT
(RELIEF)
TEST
TEST VALVES*
VALVE *
VALVE *
Figure 5-12. Pressure-Refueling System
FOR TRAINING PURPOSES ONLY
FlightSafety Canada

PRESSURE REFUELING

The pressure-refueling system (Figure 5-12)
consists of a single-point adapter, a pressure
manifold containing a two-way check valve,
three shutoff valves (SOV) associated with
three float-operated, full level-control valves,
and three vent valves that can be tested during
the refueling process and are utilized as backup
to normal pressure relief during refueling.
The adapter and manifold can accept a flow
rate of up to 250 gpm at a pressure of from 20
to 55 psi. The pressure-fueling process is con-
trolled from the fuel-defuel panel.
During a normal pressure-refueling opera-
tion, the sequence of events is as follows:
• Move the power switch to ON and check
that the green POWER ON light illu-
minates (Figure 5-14 or 5-15) (powered
from battery direct bus).
• Check that all three green vent valve (VV)
lights are extinguished and that all three
or four green SOV CLosed lights are
illuminated.
FUEL
SINGLE-POINT
MANIFOLD
ADAPTER
VENT
*NOTE
ENERGIZED CLOSED DURING FUELING ONLY
Lt é e
Lt d .
TWO-WAY
CHECK VALVE
CL 601-3A 5-13