Electrical: 1950 Defrost/Air Switch

[studejack12]

I had to take this beauty apart because the knob would not grab the sliding part and so that I could lubricate it. But naturally everything flew apart. Where does the ball bearing go? Any advice would be appreciated.

[bezhawk]

It should be spring loaded, and is the detent for the sliding part . Otherwise, why would it be there?

[Greenstude]

If the knob is loose on the shaft, possibly the tiny set screw at the bottom needs gentle tightening. A small Allen wrench is the needed tool.

[Ross]

Best I can recall. the bearing goes underneath the slider holding the contacts to serve as a detent.

[studejack12]

Okay, then bottom-to-top would be bearing, spring (retained by upside-down cup)? Do I have that right?