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Pilot's Operating Handbook
Section 7
Description
Edition 1 - January 15, 2018
Rev. 0
Page 7.7.1
7.7
- Fuel system
- see figure 7.7.1
The fuel system comprises fuel tanks, fuel unit, selectors, manual and automatic,
electric and mechanical boost pumps, engine fuel system, gaging installation,
monitoring installation and drains.
Fuel tanks
Fuel tanks are formed by sealed casings in each wing. Each fuel tank comprises a
filling port located at the end of wing upper surface, two drain valves located at the
lower surface (one near main landing gear, at trailing edge side, the second one near
wing root side, at leading edge), a vent valve located on the lower surface, a suction
strainer and three level gages.
Fuel unit
The fuel unit combines shut-off valve, tank selector and filter functions. It is connected
to the manual selector through a mechanical control. The fuel filter is located in a bowl
at the lower part of the unit. It is fitted with a by-pass valve, a clogging indicator and a
drain valve.
Tank manual selector
- see figure 7.7.2
The FUEL TANK SELECTOR is located on the pedestal rear face. It allows selecting
manually the tank (R or L) to be used and setting unit to OFF. To change from L
position to OFF position, turn the selector clockwise (L
→
R
→
OFF) ; change from R
position to OFF position requires a voluntary action from the pilot (pull and turn). The
pull and turn maneuver prevents involuntary operation. When the unit is set to OFF,
FUEL OFF
remains visible.
PIM - DO NOT USE FOR FLIGHT OPERATIONS