Hi everybody I need connection manual for this conversion kit. how can I connect controller and valve servo to receiver and how they will work. Thank you very much.I have instaled this sistem in my plane, it did work for few gear rotation and then quit working. Did this hapen to anyone else?? One more negative coment, not enough line.Lots of adjusting to get the system timing working. Expect to tinker, but that is normal with any retract system. Can be converted to work for a tri-gear setup. Ths is very easy ... Use one line for the nose gear, and the other line can operate the mains by putting a T connector in the second line to actuate both mains at the same time. Pretty simple!I must agree - this system is working perfect. I use it on my FEJ F-15 and it is performing perferct all the time. I prefer to use 4,8 volt battery, the operation seem so scale and with this pack you will take off some strain on the electromotor when lockingThese are great and I have been using them for a long time now on my jets, best piece of advise is to use sewing machine oil as it is a much better viscosity.Excellent system but requires reducers to fit airlines to the retracts. Works very scale like and is very reliable. No more air leaks!!! I would recommend it for any 50cc and up warbird. Weight might be an issue on smaller birds.