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Craftsman Table Saw with some vibration issue...

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Forum topic by Ripper70 posted 12-24-2015 03:29 AM 1018 views 0 times favorited 28 replies Add to Favorites Watch
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Ripper70

183 posts in 373 days


12-24-2015 03:29 AM

Hey All,

Thanks everyone at LJ that helped me zero in on a used TS that I picked up on craigslist the other day. I finally settled on a Craftsman 113.298240 with a Biesemeyer fence. Paid $100 bucks for it and I’m pretty happy with the purchase. I think I got a pretty good deal on a saw that’s a perfect fit for my needs.

Now, transporting the saw required removing the fence rails, so when I got her home, I figured I’d do a thorough cleaning of the case and check the machine over before I reassembled it. I noticed that the motor was mounted with the vents facing up so I thought it would be prudent to reorient the motor with the capacitor on top and the vents facing downward as instructed in the manual. However, when I finished that and started her up, there was a considerable amount of vibration (see video below) especially so right at the moment of startup as well as when she winds down.

The motor is mounted to a base, which uses a pivot screw that enables the motor to change position based on the blade height setting, and uses the weight of the motor to maintain the tension on the belt and pulley. Seems as if this is a vulnerable spot seeing as how the motor is pretty much floating at all times.

What adjustments do you all think are required to get this saw running more smoothly? Any advice/suggestions would be greatly appreciated.

-- "You know, I'm such a great driver, it's incomprehensible that they took my license away." --Vince Ricardo


28 replies so far

View johnstoneb's profile

johnstoneb

2145 posts in 1637 days


#1 posted 12-24-2015 03:46 AM

I think the belt may have taken a set. Replace the belt and see what happens.

-- Bruce, Boise, ID

View jmartel's profile

jmartel

6572 posts in 1614 days


#2 posted 12-24-2015 03:48 AM

Put a link belt on it. Harbor Freight sells them really cheap. My craftsman TS used to do that as well until I put a link belt on it. Then it smoothed way out.

http://www.harborfreight.com/vibration-free-link-belt-43771.html

And use a 20% off coupon on it.

-- The quality of one's woodworking is directly related to the amount of flannel worn.

View matt garcia's profile

matt garcia

1877 posts in 3136 days


#3 posted 12-24-2015 03:58 AM

My Delta had the same issue. I put a link belt on it and haven’t had a problem since.

-- Matt Garcia Wannabe Period Furniture Maker, Houston TX

View Festus56's profile

Festus56

953 posts in 692 days


#4 posted 12-24-2015 04:51 AM

I have had the same model saw for 20 years and like it. As already said replace the belt and it will be good.

-- Mark -- Really we're not crazy, just "Limited Editions" -- http://www.jmh-limited-editions.com/home.html --

View Ripper70's profile

Ripper70

183 posts in 373 days


#5 posted 12-24-2015 04:57 AM

Well, it’s unanimous! I had a feeling the belt would be the answer but wanted to make sure because I had no idea that the motor was mounted on a pivoting bracket.

I’ll head over to Harbor Freight tomorrow, get the link belt, and give it a go.

Thanks, gents.

-- "You know, I'm such a great driver, it's incomprehensible that they took my license away." --Vince Ricardo

View knotscott's profile

knotscott

7215 posts in 2840 days


#6 posted 12-24-2015 12:15 PM

Very likely belt related, which could also include damaged pulleys, loose pulleys, bad pulley alignment, or could include belt tension. Check that all the nuts and bolts on the motor, motor mount, and pulleys are all tightened down (...at least the ones that are supposed to be tight!).

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....

View Tennessee's profile

Tennessee

2410 posts in 1979 days


#7 posted 12-24-2015 12:46 PM

I also vote for the belt. You can see the slight hop when it comes around during the slowdown right at the end of the video.

-- Paul, Tennessee, http://www.tsunamiguitars.com

View dhazelton's profile

dhazelton

2325 posts in 1761 days


#8 posted 12-24-2015 02:41 PM

Also make sure the holes in the motor mount plate aren’t wallowed out at all.

View Ripper70's profile

Ripper70

183 posts in 373 days


#9 posted 12-24-2015 02:44 PM



Also make sure the holes in the motor mount plate aren t wallowed out at all.

- dhazelton

Not sure what you mean by that.

-- "You know, I'm such a great driver, it's incomprehensible that they took my license away." --Vince Ricardo

View ChefHDAN's profile

ChefHDAN

808 posts in 2314 days


#10 posted 12-24-2015 03:56 PM

My Ridgid is close to the same saw, the link belt won’t work unless you change the pulleys, I went cheapest route first with a new flat belt and the vibrations were gone, that was 8 years ago still haven’t gone to the lengths of replacing he pulleys and getting the link belt though I did put one on the BS, which already had v-belt pulleys.

-- I've decided 1 mistake is really 2 opportunities to learn.. learn how to fix it... and learn how to not repeat it

View Jimbo4's profile

Jimbo4

1432 posts in 2227 days


#11 posted 12-24-2015 05:12 PM

For thought – the green link belt at HF is made in Italy – NOT CHINA! My Craftsman had the same problem, and the link belt cured it. The red link belt, at $5 a foot is made in China.

-- BOVILEXIA: The urge to moo at cows from a moving vehicle.

View toolie's profile

toolie

2024 posts in 2093 days


#12 posted 12-24-2015 05:18 PM


Also make sure the holes in the motor mount plate aren t wallowed out at all.

- dhazelton

Not sure what you mean by that.

there are two rods extending from the motor mount that go into two holes in the saw. the rods are held in place by two 1/2 or 9/16” bolts that tighten down onto the rods. performance of those saws is materially affected by how much those rods are buried in the saw. check for an OM for a complete description because the weight of the motor is what tensions the belt. when those saws are set up correctly, a nickel will balance on the saw during a 45° bevel rip.

good luck.

- Ripper70

-- there's a solution to every problem.......you just have to be willing to find it.

View rmoore's profile

rmoore

325 posts in 2099 days


#13 posted 12-24-2015 05:36 PM

I would try tightening the bolt that the motor pivots on. Adjust the belt where it should be, then tighten the bolt. I can see the motor bouncing toward the end of the video. Just using the weight of the motor will let the belt slip sometimes in thick or hard wood.

-- The more I learn, the more I realize I don't know. Ron, Crossville Tn

View knotscott's profile

knotscott

7215 posts in 2840 days


#14 posted 12-24-2015 07:22 PM



My Ridgid is close to the same saw, the link belt won t work unless you change the pulleys, I went cheapest route first with a new flat belt and the vibrations were gone, that was 8 years ago still haven t gone to the lengths of replacing he pulleys and getting the link belt though I did put one on the BS, which already had v-belt pulleys.

- ChefHDAN

Your Ridgid uses a ribbed serpentine belt with proprietary pulleys. The guts are very similar to the Craftsman’s, but the Cman uses traditional v-pulleys, which should work fine with the link belt. There are higher end precision pulleys available, but I wouldn’t change those needlessly unless there’s an issue.

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....

View Ripper70's profile

Ripper70

183 posts in 373 days


#15 posted 12-24-2015 08:10 PM

Thank you all for the replies. I’ve gotten the green belt from HF as well as their mobile base for the saw. I’ll install the belt before replacing any pulleys and see if that cures my ills. As soon as I get it all hooked up I’ll report back with the results.

-- "You know, I'm such a great driver, it's incomprehensible that they took my license away." --Vince Ricardo

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