Question about new old tablesaw

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Forum topic by RT31 posted 01-30-2015 04:36 PM 657 views 0 times favorited 3 replies Add to Favorites Watch
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54 posts in 1076 days

01-30-2015 04:36 PM

Hi Everyone,

A month or 2 ago i picked up an old Unisaw for real cheap on craigslist. I planed on taking it apart and re-building everything/repainting in the spring when it warms up some. In the meantime, I’ve been using it without issue.

Anyway, my problem when i move the blade by hand (the saw is unplugged) it doesn’t stay and there is a lot of resistance. For Example: if i need to measure blade alignment, i pick a tooth and measure from the front, then when i spin the blade to measure the tooth from the back, i need to hold it in place. If i let go it will spin forward maybe 5 or 6 inches.

Is this a motor issue? belts to tight? Arbor bearings?

Thanks in advance!

3 replies so far

View MrUnix's profile


4028 posts in 1618 days

#1 posted 01-30-2015 04:42 PM

If the saw had been sitting idle for a long time, it is most likely the belts.. they have taken a set and try to return to that position when moved. While you have the belts off, spin the arbor and see if the bearings are bad.. easy to replace if needed and take standard 6203’s which you can get just about anywhere.


-- Brad in FL - To be old and wise, you must first be young and stupid

View BorkBob's profile


113 posts in 2112 days

#2 posted 01-31-2015 01:35 AM

I mark the side of the reference tooth with a magic marker. If I have to “go too far” to get the tooth to stay, I don’t lose it.

-- Please Pray for Our Troops / Semper Fi / Bob Ross /

View bigblockyeti's profile


3570 posts in 1140 days

#3 posted 01-31-2015 02:06 AM

Mine did the same thing, doesn’t necessarily mean the belts need replacement. Even if they’ve taken a bit of a set, it will be greatly reduced just by using the saw. If the saw vibrates slightly right after being turned on, try letting it run for 3-5 minutes before using it. The resistance in the belts will result in generating more heat, that will help eliminate the set the belts may have taken while idle.

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