I need radio help please!

[andyathome]

I need the advice of a pro.
I have been doing a bit of playing with the radio settings on the excavator flysky .
have managed to slow the boom and rotation nicely but some how the pump is going in reverse????
tried changing the end stops but nothing seems to work, have set it up the same as you have but cant figure out how to reverse pump.
any ideas??

cheers andy