Been using this weedeater for 4 years now and I've run into a problem I don't know how to fix. While using it recently, the entire trimming head spun off the end of the shaft. It looks like the square tipped cable broke off somewhere down in the trim head.

I took it apart hoping that it just came loose, but I don't see where it would have a snap ring to hold it in place in the solid threaded shaft.

Any ideas on if it's fixable, or if/where I can get replacement parts? What about a diagram or cut sheet?


Thanks for any answers.

It would be possible to purchase used parts , but if it is 4 years old, think this :
Cost vs worth. Parts are high.