3304H

Hey all!

Been having a reoccurring issue with my first head where it it's ovaling out the main oscillator drive. I've replaced the drive 3 times now and each one has gotten ovaled and then I get hardly any oscillating and have all kinds of issues of course.
Not really sure what's causing it. Got all new rubber in it to see if that helped but it still ruined the latest drive I installed.

 

There's excessive pressure somewhere hope you can find it.post a picture maybe someone can help