I had a drawbar problem at some point and did not notice it at the time it happened, the shaft of the air cylinder that pushes down to release the drawbar was mushroomed out and blue and purple from apparently allowing spindle to turn while air cylinder was in the down position. Friction galore. I had 9 broken drawbar springs also. Currently reinstalling new drawbar springs, locking drawbar cap and drawbar air cylinder shaft. My question is the proxy switch with wires that reads the embedded magnet in the alum drawbar piston to detect drawbar returned up and okay to run spindle, or is it to indicate the drawbar is down and tool released? I just want to be sure this switch is working properly while I have things appart. Yes the magnet was located correctly over the switch. How can I test this switch for proper operation adjustment?