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post #1 of 5 (permalink) Old 03-02-2009, 07:19 PM Thread Starter
Opa
 
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Unhappy Tablesaw adjustment

I read an article about aligning a table saw for more accuracy. The article mentions PALS (Precision Alignment and Locking System) to adjust the rear trunnion bracket on a contractor saw. I fabricated my own with the help of our local VoTech school and installed them. I got my saw blade lined up to within .003 variation front to back and the article said .004 was good enough for precision joinery. The article goes on to say that you must also align it at the 45 degree position and that may require shimming of both front and rear brackets. When I attempted to move to the 45 position I found that I could not raise or lower the blade without a lot of force. Does anyone have any experience with this PALS system or suggestions on what to do. I like the concept of the PALS but the only thing I can think of to do is remove them and accept the errors in my saw. I am using a Craftsman belt drive contractor saw.
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post #2 of 5 (permalink) Old 03-02-2009, 08:13 PM
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I prefer using a dial indicator clamped to my miter gauge.

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post #3 of 5 (permalink) Old 03-04-2009, 12:01 AM
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Opa,
You shouldn't see any difference in the way the saw works, with or without the PALS system. If any of the Pals equipment was installed between the trunion block and the table, that would be a problem, because binding would occur as soon as any tilt angle was cranked up.
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post #4 of 5 (permalink) Old 03-05-2009, 12:40 PM
 
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I'll throw something in here from experience learned. When using the PALS, or something of the sorts, to align a saw, you need to loosen 1 of the 2 other bolts holding in the trunnions. Without doing so, you are actually putting them in a bind. So, from past experience, loosen the two rear trunnion bolts, and then one of the forward bolts. You do not have to loosen the front bolt a ton, just enough for the trunnion to move under it. The forth bolt is used as a pivot point without being loosened.

Side note - I speak as an owner of a Delta contractor saw. Yours should be similar, but bolt arrangement might be off. The first time that I aligned my saw, had it dead on and then within days, it was off. Loosening that third bolt for me was the ticket after much research.
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post #5 of 5 (permalink) Old 03-05-2009, 10:07 PM Thread Starter
Opa
 
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Thank you for your post. That is the reason I like this forum so much. I can get information from people who have experienced similar things and worked them out. I'll get on that front trunnion bolt tomorrow. I can reach one with the table insert off and the blade removed. Otherwise I'd have to turn the saw over and that is a little beyond me now. Opa
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