Thread update.
My neutral switch had been acting up this year, intermittent, and dimming neutral lamp.
Ordered another one. The supply is starting to dry up.
Just for trivia sake, here's a pic with the part number, and some dimensions.
This is an early metal unit, doesn't use a terminal screw, instead uses a spring to hold the wire-end.
...I'm thinking that when the plunger touches the neutral spot on the drum, the ground path is actually through the drum. Somebody correct me if that's wrong, please.
Good question. Let's open it up.
Carefully trim off the crimp ring.
Pop the top off and withdraw the guts.
There's a flat rubber o-ring that seals under the top hat.
The plunger is confined between 2 hard rubber guides. A spring fits into the plunger at one end and presses against the base of the connector post.
So, there we have it. It's not a switch at all. It's just a spring-loaded plunger that connects to ground by contacting a post on the shiftdrum.
The spring and the contact face are corroded.
Studying the thing, it would appear that one could possibly freshen the inner connectivity by simply rotating the plunger back-and-forth several times. That'd be something for gggGary to figure out...
