I was using my Delta Professional Jointer and when I went to turn it off, it would not turn off! I pulled the plug on the machine and considered the situation.

I disassembled the simple switch and found no obvious answer. You would think it would be mechanical problem where the switch does not cause a break in continuity when the switch is turn off.

An additional problem: when I disassembled the switch I thought I had tagged all of the wires that connect to the four terminals in the switch-box. I tagged the two white wires but not the two black wires. I have two terminals for the black wires, but I am concerned that with this 50/50 choice that I make the wrong choice and do some electrical damage to my jointer.

Any help would be greatly appreciated!

Tenderfoot Bob