[Bob Andersen]

I did a little work last night on the control wheel which was spinning freely on the shaft. I had to loosen the volume control locking clip and pop the other end of the shaft out of the frame and it slid right off.

Now I can see that the brass shaft is knurled on the right side. Inside the plastic wheel the corresponding knurled plastic has broken out and is rattling around inside.

It appears that this made be made from two pieces of plastic bonded together but I wary of trying to break it apart. Instead I'll try fishing out the broken plastic. Then I'll insert a plastic or brass cylinder so it grips the knurled shaft tightly.
[Image: https://farm1.staticflickr.com/814/26955...e621_c.jpg]

[Image: https://farm1.staticflickr.com/787/39015...972e_c.jpg]


While it is out of the way I did some cleaning and applied fresh grease. The stepper mechanism is working better now.
[Image: https://farm1.staticflickr.com/816/40116...4f52_c.jpg]