[OldSkull]

Originally Posted by smalljob

Thanks for the info on the cover. So I pulled the "switch" thing off the side of the frame ( see earlier post) and took a few more pictures.

I searched the internet and can't find anything like this. The writing on back appears to be CLUM Milwaukee

The mechanism is spring loaded and moves easily. I was able to get the two screws out and the inside appears to be brass or copper. The raised area between the two screws is non-conductive. I tried metering it but it always shows open so I suspect there is some corrosion inside.

My guess is a wire or something was attached at one end which probably went to the brake/clutch pedal and two conductive wires attached to the two screws that probably went in series to the started solenoid, so that the brake had to be pressed for there to be 12v to the solenoid.

A mystery to me. I was not sure where to post it to get most eyes on it. Not that I need it for my restoration, but it is interesting.

Can this be just a stop light switch? You have 2 wire holder just behind it who are bolt on the foot rest probably to hold the wire going under the tractor. I wonder if the brake/clutch pedal arm made contact with the spring loaded switch to open a circuit and close it when the pedal is pressed. What else this switch can control on a mechanical PTO GT?