13)
The fuel pump should be located close to the fuel tank as convenient. The pump has two 3mm
screw fixing holes provided for mounting to the airframe. Try not to mount the pump in close proximity to
the front of the engine as being a brushless motor it might interfere with the rpm reading. If you want to fit
a manual shutoff, fit a Festo 4mm type in the pressure side and locate it somewhere easy to see and get
to.
14)
To prime the fuel system, disconnect the fuel pipe at the engine and route it into a suitable
container. Run the fuel pump for a few seconds using the Pump Prime function accessed via the INFO
menu. Note the ECU battery must be connected to do this. This will help clear any air and particles that
could have entered the fuel system during installation.
15)
If refitting a quick release “Festo” connection, trim the last 6mm (1/4”) from the end of the tube to
expose a fresh area for the connector to seal onto. To release a “Festo” type connection, push the blue
ring inwards with one hand and gently pull the tube out with the other hand, whilst holding the collar in its
retracted position.
16)
If using “Tygon” flexible piping from fuel tank push on a short (12mm/1/2”) length of the supplied
4mm pipe onto the pump suction port and push the “Tygon” over the top to provide a tight leak free
fitting. A double wrap of lock-wire will ensure secure connection. Otherwise, use the 4mm piping
supplied.
DO NOT use tie wraps anywhere on the fuel system. Be aware Tygon gradually softens in use
so should be replaced annually.
17)
DO NOT use “Tygon” flexible piping anywhere for the pressure (delivery) side, it is only suitable
on the suction side. Also
DO NOT
use silicon tube anywhere in the fuel system as the fuel will melt it.
18)
Any air inlet openings to the engine intake should have area equivalent to 62mm x 62mm /
2.5”x2.5”“.
19)
Extreme care should be taken to avoid the possibility of foreign objects, loose parts or debris
being allowed to enter the engine either during installation or while flying. Always use the supplied FOD
screen but regard this as a last line of defence and not as a reason not to practice good housekeeping.
Before filling the tank and starting the engine for the first time, turn the model upside down and give it a
good shake and hoover out to loosen and clear any small bits and pieces.
20)
Always use the supplied FOD screen, it protects the engine from sucking in small objects that
could damage the delicate high speed compressor blades.
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