Originally Posted by
Fran Ferrante
Sorry I did not explain it right. Yes their is a slight bit of play if you put pressure on the sides of the disk, that is OK.
But what I meant is on the face of the disk if you can rock it by pushing down on each side, the brass bit is worn and should be replaced.
I have purchased them from Yamada.
You may not see them listed.
I E mailed him and explained what I wanted, when I ordered the brass shafts.
Fran
I've been using the DZ's for 18 years and never had to replace the brass screw.
If the rotary valve rocks when pushing down on each side, either the back plate face or the rotary valve face is not flat. I can't see how that would happen though 🤔