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Fuel connections RX
When installing tubing on a metal nipple fitting,
secure the tubing by a double loop of safety wire
around the connection. To remove tubing from the
nipples, you must cut the tubing off. Be careful not
to damage the nipple when cutting off the tubing.
Warming the tubing can make it easier to slip over
the nipple fitting. To insert tubing into Festo quick
release fittings, use firm pressure until you feel the
tube snap in. To release, press in on the blue
plastic front ring, while pulling the tubing out.
The ballcock valve can be put on either side of the
filter. When assembling the fuel filter, use caution
not to pinch the O-ring when assembling. Clean off
aluminum dust and
lubricate fine threads
before
assembling
.
We recommend mounting the fuel filter vertically. This will limit the possibility of air being trapped inside
and then coming out at an inopportune time. It is also better not to affix it but to leave it free to slightly
move.
ALWAYS
use a gasoline-compatible stopper in your fuel tanks.
Silicon stoppers swell and leak
.
Hopper Tank - UAT
A hopper tank is recommended, between
the main fuel tank and the turbine.
JetCat
highly recommends the
BVM
UAT for the hopper tank!
The UAT is
available as an option from
JetCat.
Always use the filter between the fuel
pump and the turbine as shown in the
diagram. This is true even when using
the BVM UAT! The pump can emit small
particles that can block the internal
solenoid valves from completely closing!
The fuel demands are high, especially on larger engines, and require large tubing
interconnecting the tanks. Use a 6 mm to 4 mm adapter to reduce the UAT 6 mm tubing to
the 4 mm tubing connecting to the pump inlet.
For safety reasons,
JetCat
recommends to replace the fuel pump after 25 hours of flight!
Arrow indicates
fuel direction
Festo
fitting
Filter only at RX
engines