P92 Echo Super
Maintenance Manual
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SECTION
6
SYSTEMS
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6 Systems
6.1 Fuel System
The system is equipped with two aluminum fuel tanks (1) integrated within the wing leading edge and accessible for
inspection through dedicated covers (6). Capacity of individual tank is 35 liters (9.24 gal) (45 liters (11.8 gal) optional) and
total usable fuel is 66.8 liters (17.64 gal) (86.8 liters (22.9 gal) total). On the upper external are fuel caps (2), bay (3)
for
float
(4) chamber and fuel tank bleed (5). Metal cover plate (6) may be removed for inspection of tank interior that
assembly riveted and puttied with dope gasoline resistant. Return line discharged flange (7) of fuel system on the left fuel
tank rear wall placed.
Diaphragm mechanical pump (13), engine connected, stoking provide by means flexible pipelines come to the fuel tank and
across cabin vertical rods, easily accessible, after disassembled plastic structural. On the same cabin vertical rods are circuit
on-off valve (9), one for each fuel tank, easily accessible to the pilot. Circuit link with union tee in correspondence of the
firewall, and then to drainage bowl (10), located left upper side in the engine bay, visible through an upper cowling port.
Downstream respect to the gascolator is located a fuel filter (11). Mechanical pump feeds the fuel manifold (14); its left
branch feeds the left carburetor and, in derivation by a tee with restrictor, the fuel pressure gauge (14). The rear branch
of
the
“X” manifold (14) is connected to the fuel return line (17).
Return tube (17) engage in pipe fitting (18) located on the fire-wall and then by means a thin transparent tube return at the
LH fuel tank. Disassembled half-wing is necessary disconnect return tube by means pipe fitting (19). For release of pipe
fitting
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little tube push in direction to the base knurled flange. For coupling to the tube insert in your seat.
Periodical
ly
check the fuel tank vent (5) to ensure that their openings are unobstructed; repeat inspection more frequently if operating in
dusty conditions. It is recommended, for inspection purposes, to use a small rubber tube to blow through the vent clearing
possible obstructions.
Drain gascolator daily (see Fig. 6-2) using the spring tap (2). Unscrew ring nut (1) for disconnect bowl and accede at wire
mesh filter (4), use particular care not to damage seal (3) and spring (1)
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Revision Date:
10-29-2007
Revision Number:
3.01
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