12
SPEED AIR-40 _
Item code:BH08.
Instruction Manual.
5) Test fit the stopper assembly into the tank.
It may be necessary to remove some of the
flashing around the tank opening using a
modeling knife. If flashing is present, make
sure none of it falls into the tank.
When the stopper assembly is installed
in the tank, the top of the vent tube should
rest just below the top surface of the tank.
It should not touch the top of the tank.
Vent tube
Fuel pick- up tube
Fuel fill tube
6) When satisfied with the alignment of the
stopper assembly tighten the 3mm x 20mm
machine screw until the rubber stopper ex-
pands and seals the tank opening. Do not over
tighten the assembly as this could cause the
tank to split.
7) Using a modeling knife, cut 3 lengths of
fuel line 150mm long. Connect 2 lines to the 2
vent tubes and 1 line to the fuel pickup tube in
the stopper.
Blow through one of the lines to ensure
the fuel lines have not become kinked inside
the fuel tank compartment. Air should flow
through easily.
9) To secure the fuel tank in place, apply a
bead of silicon sealer to the forward area of
the tank, where it exits the fuselage behind the
engine mounting box and to the rear of the tank
at the forward bulkhead.
Do not secure the tank into place perma-
nently until after balancing the airplane.
You may need to remove the tank to mount
the battery in the fuel tank compartment.
8) Feed three lines through the fuel tank com-
partment and through the pre-drilled hole in the
firewall. Pull the lines out from behind the en-
gine, while guiding the fuel tank into place. Push
the fuel tank as far forward as possible, the
front of the tank should just about touch the
back of the firewall.
Fuel tank.
3) Carefully bend the second nylon tube up at
a 45 degree angle (using a cigarette lighter).
This tube will be the vent tube to the muffler.
4) Carefully bend the third nylon tube down at
a 45 degree angle (using a cigarette lighter).
This tube will be vent tube to the fueling valve.
