BryFlyGuy67

Hello all. I have found that replacing the main shaft after a crash is a fairly common occurance. I have only done this a couple of times, but I have yet to find an easy way of getting everything aligned on the bottom such that I can get the bottom bolt through the autorotation gear, sleeve and the bottom hole on the main shaft.

If I pull the autorotation gear off the main gear, I get access to the sleeve and can use a pair of needlenose pliers to line everything up. The problem is that the main shaft, when inserted, will more than likely turn the sleeve such that the bottom holes don't lne up.

Has anyone developed any tricks for this? Anything to make this easier would be helpful.

USHobbySupply

While not on the trex (I have hdx450 and BeltCP, HDX300) I wire and setup everything so that one side of the frame can come off easily. This allows much more access to components than you would normally have with both sides of the frame on.

Wiring, ESC, everyting is setup on one side, so the other side panel can be removed without messing with the wired.

Michael

Maxime

When the bottom holes doesn't line up.... turn the main shaft. If you turn it the right way, the one way will lock and the sleeve will turn, thus allowing you to align it properly....




Make sure you installed the shaft the right way, there's a hole on both side of the shaft. The hole which has the more lenght of shaft remaining (4.8mm) over it is the top of the shaft, where the head block is attached (hope my explanation make sense).

TheBum

I have a problem with the sleeve turning inside the autorotation gear, so what I do is put the screw just far enough into the hole on one side to keep the sleeve from turning. I then slide the shaft in and push-and-turn the screw while slowly turning the shaft until the screw engages the shaft hole.

BryFlyGuy67

Thanks, guys! I got it right and got the holes to line up. I ended up sticking a very small diameter screwdriver into the hole to keep it aligned.