Permanent Powermatic 64 Alignment Solutions

[Bigwavedave2u]

Hello, although this is specific to the Powermatic 64a, it will solve nearly all contractor saws with trunnions, alignment issues

1. To clarify: The trunnion rear "nuts" on this powermatic model are reverse thread.
2. Once I removed the motor, motor plate, trunnion nuts and trunnion backplate, I took a fine grit grinder and carefully ground down a flat spot on each trunnion where my set bolt would make contact.
3. I drilled and tapped a guide for a 1/4" set bolt to be tightened through the trunnion back plate at an easy angle at exactly 90° to the trunnion flat spot I had previously ground.

The next issue I noticed was that the trunnion twisting torque was not so much a fatal flaw in that part of the design but much more from the motor weight alone being used to maintain belt tension and thus the **** thing will bounce willy nilly when started. Hence
4. I bolted a piece of 1" x 1/4" piece of strap metal to riving knife post, through spring and onto motor rest plate along with a strut brace. It is critical to confine this mechanism within this area or unit cannot tilt.
5. I then attached two takeup bolts at front base of motor as adjustable stops for motor. This in harmony with the trunnion stops have eliminated ALL fatal flaw issues.
6. I then installed PALS and viola.
It is important to note that I acquired this unit new for $150. And thus I felt I could invest some sweat equity. I have worked with wood for nearly 60 years and this is my first **** fine piece of equipment. Better late than never. I hope this helps the beleaguered. Any questions just ask. Will post pictures shortly