Trex 450 3gx V2 Problems

[pblais18]

I have my 450 3gx V2 up and running flown with a DX8 and have noticed a few issues I would really like to get some help with.

The first issue is that when I put it into idle up (3D Flight) using the throttle and pitch value in the manual, I hear a screeching noise almost like a metal on metal sound. It only happens sometimes which makes it even harder to know what might be causing this. Any ideas of how to solve this problem?

The second issue is that when flying in either mode and i really punch the throttle, the heli will rise but also the boom will start turning around uncontrollably. It has just started doing this because when I first started flying it this problem wasn't there. Any ideas??

Thanks for the help!! very much appreciated!!

[Clinton1]

Originally Posted by pblais18

I have my 450 3gx V2 up and running flown with a DX8 and have noticed a few issues I would really like to get some help with.

The first issue is that when I put it into idle up (3D Flight) using the throttle and pitch value in the manual, I hear a screeching noise almost like a metal on metal sound. It only happens sometimes which makes it even harder to know what might be causing this. Any ideas of how to solve this problem?

The second issue is that when flying in either mode and i really punch the throttle, the heli will rise but also the boom will start turning around uncontrollably. It has just started doing this because when I first started flying it this problem wasn't there. Any ideas??

Thanks for the help!! very much appreciated!!

Hi there. I can maybe help on the first issue - it sounds like your oneway bearing is finished. I had it on my KDS 450. Only would hear it when going into idle up. Replaced it, and never had a problem again. You might say: but it is still new. My one way bearing was a few flights old when it started - new parts fail out of the box. Hope it helps.

[pblais18]

I appreciate the response! I actually just ordered a new oneway bearing so I'm glad to hear that you think that will fix the problem. I have been contacting lots of different people and a majority agreed that it probably is the oneway bearing. As to the other problem, I was able to fix that by redoing my rudder limits on the 3gx. Thanks