GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY
We reserve the right to introduce modifications. Not liable for printing errors!
11/2011
13
It is best to operate the aero-tow release
mechanism using a momentary switch
mounted on the joystick. The servo travel
must be set accordingly.
Installing the tank and motor
Assembling and installing the fuel
tank
Slip a piece of plastic tubing onto the fuel tank clunk pick-up. Push the free end of the
fuel tubing onto one of the tubes in the fuel tank stopper so that the pick-up will be able
to move freely inside the tank later on without binding or jamming when the stopper is
in place. Use a heat-gun or lighter to gently heat the free plastic tubes so that they can
be
bent easily. One tube should face down and will be used later to fill the tank; the
other one points upward and serves later as the overflow when the tank is filled. Use
pieces of tubing to extend the two tubes so that they reach to the top and bottom of the
tank.
Now push the tank stopper over the throat of the fuel tank, and tighten the Philips-head
screw to fasten the stopper in place. It is important to tighten the screw so that the tank
is completely sealed. This can be checked by holding the tank under water. Hold it
under water and blow air into it. If the tank is sealed, there will be no air bubbles.
To each stub tube projecting from the fuel tank, a length of fuel tubing is connected.
Mark the tubes with a felt marker to show which runs to the motor, the overflow, and
the filler.
The tube from the clunk is then connected to the carburettor, while the overflow is run
downward. The fuel filler tube can later be routed out through a drill hole in the motor
bonnet. After filling, it should be sealed with a plug.
The attachment block is fastened with two screws.
