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Table saw blade seems to be spinning not around center

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Forum topic by bearpowell posted 03-26-2018 05:51 PM 609 views 0 times favorited 10 replies Add to Favorites Watch
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bearpowell

2 posts in 539 days


03-26-2018 05:51 PM

Hi everyone,

I recently purchased a used craftsman “3hp” belt driven table saw, model 113.???? In very good condition. Got it very reasonable price on it but didn’t test before purchase. After getting it home I started turning the blade by hand and noticed that the blade seemed to spin off the center of its axis when looking at it from the side. Meaning if I set the blade height on the top of one side of the blade, if I spin the blade a half turn, the blade would be higher/lower depending on the first side measured.
There is no slop that the blade is shifting around the arbor that is noticeable but haven’t taken it off to see if the blade is possibly not centered some how. I will try to get some pictures when I get home tonight.

I’m relatively new to woodworking and would appreciate any insights.

Any thoughts are appreciated
Thanks


10 replies so far

View Bill White's profile

Bill White

5224 posts in 4438 days


#1 posted 03-26-2018 06:23 PM

Have you tried a different blade?

-- [email protected]

View bondogaposis's profile

bondogaposis

5514 posts in 2829 days


#2 posted 03-26-2018 07:03 PM

Sounds like the saw blade is shot.

-- Bondo Gaposis

View TheFridge's profile

TheFridge

10859 posts in 1964 days


#3 posted 03-26-2018 07:12 PM

Or the arbor.

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

View jimintx's profile

jimintx

921 posts in 2062 days


#4 posted 03-26-2018 07:18 PM

Or the blade opening is too large, not correctly sized for the arbor, mounting axle, and therefore it can be – and is – mounted off-center.

I would not say I have ever seen anything about this particular type of issue in the past.

-- Jim, Houston, TX

View theoldfart's profile

theoldfart

10862 posts in 2929 days


#5 posted 03-26-2018 11:19 PM

My older Craftsman’s arbor was, I think 1/2”. To use newer blades I had to use an adapter washer( 1/2” ID 5/8” OD).

Check the arbor diameter and the blades hole diameter, you see a difference.

-- "With every tool obtained, there is another that is needed" DonW ( Kevin )

View MrUnix's profile

MrUnix

7468 posts in 2677 days


#6 posted 03-27-2018 12:03 AM

There is no slop that the blade is shifting around the arbor that is noticeable but haven’t taken it off to see if the blade is possibly not centered some how.
- bearpowell

You aren’t going to determine anything until you remove the blade and check 1) the arbor for size and runout, and 2) the blade (circumference and arbor hole size).

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

View bearpowell's profile

bearpowell

2 posts in 539 days


#7 posted 03-27-2018 02:00 AM

Thanks all! I know asking the question was a bit silly without taking a look directly, but I’m out of town and since I had the time I thought I would see if it was an issue that existed, but I was unfamiliar with. Just getting started on putting the woodshop together, so it’s been a learning experience all around. I will update you when I have an answer, and thank you all for your responses.

View whiteshoecovers's profile

whiteshoecovers

63 posts in 1562 days


#8 posted 03-27-2018 06:28 PM

When I install a blade in my TS I never tighten the arbor nut, I get it just barely finger tight then turn on the saw and let it self tighten. This helps center the blade on the arbor.

View CRAIGCLICK's profile

CRAIGCLICK

117 posts in 551 days


#9 posted 03-27-2018 06:51 PM

I would put my money on it being a bad blade. If the bearing was bad, the play would be noticeable side-to-side, not so much up and down whether the bearing is bad or the shaft is bent. Your best bet is to try a different blade and see how it works.

If that’s not it, I would say that there is too much play between the teeth on the arbor and the lift screw on the shaft to raise/lower the blade and the belt has developed a “set” which is causing the arbor to move up and down when the set spot in the belt goes around the pulley.

If that’s the case, the arbor , there are plenty of arbors (and lift screws) for sale on ebay.

-- Somewhere between raising hell and amazing grace.

View CRAIGCLICK's profile

CRAIGCLICK

117 posts in 551 days


#10 posted 03-27-2018 06:53 PM



I would put my money on it being a bad blade. If the bearing was bad, the play would be noticeable side-to-side, not so much up and down whether the bearing is bad or the shaft is bent. Your best bet is to try a different blade and see how it works.

If that s not it, I would say that there is too much play between the teeth on the arbor and the lift screw on the shaft to raise/lower the blade and the belt has developed a “set” which is causing the arbor to move up and down when the set spot in the belt goes around the pulley.

If that s the case, the arbor , there are plenty of arbors (and lift screws) for sale on ebay.

- CRAIGCLICK

try raising or lowering the blade and then spinning it and see of the movement changes at all.

-- Somewhere between raising hell and amazing grace.

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