I've been trying to align my 3.5 year old 1022ZPRO for the last 4 days. I've finally realized the reason why I cannot get it aligned. I can align the blade to within .001" parallel to the left miter slot with the blade fully raised. But when I lower the blade 1/2 way, the back of the blade shift to the left .012"
Through trial and error, here's two things I've learned:
- The weight of the motor has something to do with the back of the blade being pulled out of alignment when I lower the blade. If I remove the motor, the blade stays in alignment when it is lowered.
- The blade is only pulled out of alignment when the saw is at 90 degrees or close to it. If I tilt the blade past say 25 degrees, the blade stays in alignment when I lower or raise the blade.
As it is, the best I can do is to split the difference in the .012" leftward heal shift. I have to adjust the blade at full height so that the back of the blade is shifted .006" to the right. That way when I lower the blade 1/2 way, the back of the blade is .006" to the left.This is still farther out of alignment than the spec'd < .004"
I'm not sure if the blade continues to shift the lower it get because the blade it too low to measure with my alignment tools.
I know there are not many parts to the contractor saw, but I cannot figure out what would be causing this issue. Is there any part that I need to replace? Is is there something that I can adjust to fix this strange shift of the blade when I lower it? Has anyone seen this type of shift before? Do you think .006" is as good as I'll get with a contractor saw? (The reason I ask is because the manual states the blade need to be within .004" parallel to the miter slot.)
Thanks,
Ronnie Ferrell