Are these specs for used PM66 satisfactory

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Forum topic by maxhall posted 04-03-2014 03:19 AM 1345 views 0 times favorited 5 replies Add to Favorites Watch
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80 posts in 2437 days

04-03-2014 03:19 AM

Hey everyone so I went to look at a used PM66 today (single phase 3hp Baldor motor left tilt.) For this momentous occasion I went to woodcraft and picked up their 24” rule which is accurate to .001” every foot and a dial indicator with base from my local Harbor Freight. Everything is free of rust, the trunnion assembly covered in sawdust but still operating smoothly. The only measurement I took that I have any real faith in is checking the flatness of the table top. There were a few spots I could put .0025” feeler gauge under the straight edge and one spot at the rear right side of the table where I could fit a .004” feeler gauge.

I was in the Navy and used a dial indicator frequently to check slip rings on our AC motors for concentricity. I put the dial indicator on the arbor flange and bolt. My mistake was not removing the belts when I turned the arbor. I used the belt to turn it but I’m pretty sure my hand on the belt caused the deflection I was seeing as I was rotating since the deflection was greatest when I 1st applied pressure to turn the motor(Next time I should really remove the belt). The guy had a crappy blade but it still crosscut/ripped 1.5”oak with no burn marks and purred like a kitten. The rails definitely need to be replaced ($289 new including shipping) and possibly just a refacing of the fence. The blade lift mechanism also wasn’t as smooth as I would have liked but the thing was packed with sawdust. Overall I think even with the problems $750 is a pretty good deal, and worst case I would have to be a replacement arbor and shaft for $150 (though I don’t think this is a problem).Is the tabletop flatness a big enough problem to walk away from this saw?

5 replies so far

View Loren's profile


10477 posts in 3883 days

#1 posted 04-03-2014 03:23 AM

“Is the tabletop flatness a big enough problem to walk away from this saw?”

No. It’s not a problem in woodworking.

Replacing the rails? Never heard of that. Was the saw dropped?

View maxhall's profile


80 posts in 2437 days

#2 posted 04-03-2014 03:38 AM

I’m not sure if transporting the saw something happened when the rails were detached but there is a significant dimple in the railing at ~12”. Not a big deal since he dropped his price from $750 from $1100 once this was brought up by another interested potential buyer. I honestly think I could take this to a metal shop and have them possibly work some magic (purely conjecture… I’ve never worked with metal). Even if this was the case I was entertaining the thought of switching to the Incra system which would make this a moot point.

View unbob's profile


810 posts in 2139 days

#3 posted 04-03-2014 04:42 AM

I seen an inspection tag that came with a similar PM66, that said the table was flat within .010”, so still well within the factory spec.
Due to age, new bearings for arbor and motor will probably be needed at some point.
I have the larger version of the saw, they are very good saws.

View Paul's profile


721 posts in 1801 days

#4 posted 04-03-2014 05:02 AM

If you do choose to purchase it chances are you’re going to have ALOT to adjust after you move it and reinstall the table wings etc. you’re going to have to adjust things, you’re talking hundredth of an inch adjustments from your inspection.

I see no issues at all. If you’re looking at a pm66 to begin with I assume you know know how to tune a TS.

Knotscott will chime in and give you better definitive answers but I personally would pull the plug if it’s a saw you want.


View Jeff Heath's profile

Jeff Heath

67 posts in 3305 days

#5 posted 04-03-2014 04:50 PM

It’s a good saw. You should buy it if you like it. Bearings will need to be replaced soon, but they are $25 apiece for a good, quality bearing from Accurate Bearing (I’ve restored a couple of these saws) and it’s a simple job.

-- Jeff Heath

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