The old switch became brittle with age and broke. There were two plastic cylinders that held a spring loaded bearing to operate the contact point. It became brittle because of age and it broke.

I first turned off the power to the range. The switch was housed inside a control panel in the front center part of the range. Two screws were removed and the housing was lifted forward and then off The switch was held in place by metal friction washers. Those were removed by a screwdriver and then the switch slide off the posts that they were attached to. The switch had two wires and I simply replaced the wires onto the new switch and placed the switch back onto the posts. The friction washers were pressed back over the posts to hold the switch in place and then the housing was screwed back into place.