Originally Posted by paul ron
Take the ring off n straighten it out. Use a wood block the same radius n tap it with a rubber chaser.
To get the ring off yo have to remove a small stopper screw on the rim of the ring, you can see where it is as you reach the end of it's rotation where it stops turning.
Then the ring will just unscrew right off.
Hope this helps. This is not a very complicated repair.
Just what I was looking for. I'll give it a try this evening =)