andre2

I honestly dont remember what was it that i change i have the spur gear and pinion gear od the s50 and i think it was the shaft on the second gear im not sure like i said i last open that box 3years ago as soon as i have some time i will post pics off the box outside view

I have done that gearbox build about 3years ago and its still running today i last open it 3years ago but i must add it standing now for almost 1,5years fly copters now. All i can say is it work i lost a bit on top speed but i font have that trouble rebuild the box so often

I was so fed up with the s28 gearbox 2de speed gear breaking then I know the S50 Sledge hammer has steel gears. I 1ste thought I will buy a total new gearbox then I buy all the spares for the S50 gearbox. What I have discover the S28 and the S50 has exactly the same gearbox casings. And most off the gears inside is also the same the only difference is the shaft with the 2de speed gears. and it has some extra plastic brackets that also come into the gearbox. Thought I would share this with you if you think to change the gearbox. The drive shafts is also the same diameter on the S50 as on the S28

Thanks mate fall all the advice. I got it right after I pull the gearbox and reassemble it. It works perfect now thanks.

Hi my name is Andre and I recently got into RC Hobby and I join this forum to learn more and meet new people

I recently change the 2de speed main gears on my mta4 s28 and ever since then it wound change to 2de speed. i have adjust the 2de speed but it does not matter if tighten it or loosen the screws it wound shift to 2de gear. I have put the gearbox back correctly according to the diagram. Any advise?