Jets Munt Merlin M122NG, Instruction Manual

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On some Futaba transmitters, it has been found that the throttle channel the sense of
movement may require reversing (Servo reverse) and to repeat the transmitter alignment. The
correct adjustment of the throttle adjustment on the ecu can be verified in the second screen
of the data terminal, the percentage of the throttle position should read 0% at the position of
engine stop (trim and stick down), 100% with stick/trim full up
and between 10% and 30% at idle.
This now completes your radio setup and should only need
doing again if the radio settings are changed.
Failsafe :
Never fly with the failsafe set to “hold ”. It is strongly recommended that you setup your radio
system with the correct failsafe settings. In some countries is mandatory that the engine stops
in 2 seconds in the case of a failure of the radio link.
To program correctly the failsafe on your radio:
1) Adjust the travel of the throttle channel from -100% (stop position) to +100% (full
power)
2) Adjust the ecu to your radio as described above.
3) Adjust the failsafe position of the throttle channel in your radio to a -125%.
If all is correctly adjusted, the ecu will stop the engine immediately when receive the STOP
signal (-100%), but if the signal received is Failsafe (-125%) the ecu will set Idle power during 2
seconds, and, if after these 2 seconds the Failsafe condition persist, will shutdown the engine.
Once you have the radio programmed, you can check it by setting the throttle to the different
positions, and then switching off the transmitter; in this case the “failsafe” reading should be
displayed.
There are many more parameters that can be modified in the ECU, but we have specifically
programmed your ecu with the optimum settings, further adjustment should not be required
and can only be carried out by Jets Munt SL or your authorized dealer.
Preparing the engine for running
A suitable platform/table/workbench is now required to clamp the test stand onto. Make sure
this can be easily transported outside and weight enough to ensure it cannot be blown over by
the thrust of the engine.
Select a clear area for running – keep clear of areas with loose leaves, sand or other debris that
could be picked up or drawn towards the intake. Ensure the fuel tank is position well clear of
the exhaust area and secured.
Important notes for kerostart engines. PLEASE READ
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