[Espeefan]

Mario, I'm not too familiar with this brand of radio and the programming of them, but is there any chance you flipped a toggle switch that would be tied to a throttle hold function on a helicopter program? Throttle hold cuts and disables the throttle channel, so maybe your pump is tied to it? Throttle hold is typically a two position switch. The pump could still be on it's own separate toggle switch for on and off, and throttle hold will prevent any inputs from starting the motor.

In my mind, if the pump is tied to a 3 position switch, that offers an off, low speed, and high speed function, than I'm pretty sure throttle hold is enabled and preventing the pump from starting.

Not sure about the track drive though. Might have to dig into the manual for some reading. Trace all the ESC and servo leads to figure out what channel is controlling what, and then refer to the manual to see what kind of programming you can do with those channels.