Ok,need some help with some preliminary thoughts on this problem. Have heard some strange noises coming from the back gear area for a while now but it comes and goes. Sounds like a loose flywheel that is struck occasionally and makes a musical chime when it does occur. So I finally took the cover off the back gear and everything seemed ok as far as wear but you guys can be the verdict on that. Didn't solve the problem of rotating that shaft of the Kinamatic and hear that musical clank every once in a while as I was rotating the shaft of the motor. I'm attaching some pics of the inside of the back gears and also an audio clip of the noise coming from behind the back gear casing in the armature area of the motor. At least that is where it sounds like it is coming from. Give me some ideas of where to go from here please. Also note that I'm getting some spikes in RPM's lately as thought there is power surges, these happen randomly.
Audio coming:
1968 Square dial with Kinamatic 5HP motor.
Audio coming:
1968 Square dial with Kinamatic 5HP motor.