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post #1 of 11 (permalink) Old 11-18-2009, 12:40 AM Thread Starter
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Default My Table Saw

My newish table saw (4 months old) Grizzly G0478 Hybrid Saw. I was making yet another box and while cutting some lumber my saw started making a different sound. and kept getting worse the more I used it, kind of a ringing in the blade? But after examining the blade showed nothing out of the ordinary, with the blade off and unplugged turning the arbor it was definitely coming form the arbor a closer look I found that the pulley at the back of the arbor was loose both Allen set screws backed off. and let the pulley to start working on the shaft Thankfully I found the prob with out having done any damage to the pulley or the shaft If you have one of these saws might want to check yours I'm sure its a fluke but should be in your regular maintenance program any way..
I have made mountains of sawdust with this saw in the few months that I have had it and this is the first problem that I have had..

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post #2 of 11 (permalink) Old 11-18-2009, 12:49 AM
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Good that you found the problem before any damage could done. Looks to be a fine saw. BTW did you get the saw new? If so you might want to let them know for quality control purposes on their end.


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My newish table saw (4 months old) Grizzly G0478 Hybrid Saw. I was making yet another box and while cutting some lumber my saw started making a different sound. and kept getting worse the more I used it, kind of a ringing in the blade? But after examining the blade showed nothing out of the ordinary, with the blade off and unplugged turning the arbor it was definitely coming form the arbor a closer look I found that the pulley at the back of the arbor was loose both Allen set screws backed off. and let the pulley to start working on the shaft Thankfully I found the prob with out having done any damage to the pulley or the shaft If you have one of these saws might want to check yours I'm sure its a fluke but should be in your regular maintenance program any way..
I have made mountains of sawdust with this saw in the few months that I have had it and this is the first problem that I have had..

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post #3 of 11 (permalink) Old 11-18-2009, 08:14 AM Thread Starter
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Good that you found the problem before any damage could done. Looks to be a fine saw. BTW did you get the saw new? If so you might want to let them know for quality control purposes on their end.
Yes I got it new, that's a good point I think Ill do just that.. thanks.

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post #4 of 11 (permalink) Old 11-18-2009, 09:19 AM
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drasbell,
The same thing happened to me last winter on my Delta 10" cab saw. I wear good ear protection and have dust removal running so if mine made any horrible noises before it slid off I couldn't tell. I've been running the Delta since early 03, this being the only mishap and as far as I can tell there is/was no damage to the arbor, motor, pulley or pulley shaft.

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post #5 of 11 (permalink) Old 11-18-2009, 12:56 PM
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Rick;
The same problem was reported on another forum. Seems like some quality control problems. Using thread lock on the set screws should prevent it from happening again. It was also suggested to grind the end of the set screws flat for better contact on the arbor.

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post #6 of 11 (permalink) Old 11-18-2009, 01:49 PM
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I probably shoulda used some permatex on the threads when I reset the pulley but didn't, I mean 6 yrs.
I do remember hearing a bang now, musta been the pulley hitting the inside of the saw base.
I'm also wondering if running the full dado set including shims on a lot of PT might have caused enough stress to loosen the set screws?

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post #7 of 11 (permalink) Old 11-18-2009, 05:01 PM
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Ron, just sounds like normal wear an tear. If you think about turning the blade, the arbor shaft, then the motor, the belt will have some slight "shake" to it, add this all up, it will slowly show some wear on any machine.

The Grizzly Hybrid is a wonderful saw. I do have one but, then again I did purchase mine last Dec. Haven't had a bit of trouble with it at all. If you're running at 110v, I do suggest that you get their mag switch to rewire it to 220v. You'll notice an even better performance TS.

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post #8 of 11 (permalink) Old 11-18-2009, 07:07 PM Thread Starter
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I'm sure that having a 220 saw would be the cats meow.. but unfortunately I don't have 220 in my shop at the moment..
I did call grizzly and talked with a tech he said that he would make a note and have it brought to quality control so they can make sure there tight.

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post #9 of 11 (permalink) Old 11-18-2009, 07:29 PM
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HI Rick,

Sometimes, thing do slip through the cracks, no matter who the company is. The good thing is, now you know that, they now know of the problem. Grizzly does have an excellent tech support IMHO, very helpful people.

Grizzly's Hybrid IS a great TS. I can't say enough good things about mine. Wouldn't trade it for anything... well... maybe for Grizzly's 12" cabinet TS.

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post #10 of 11 (permalink) Old 11-18-2009, 09:06 PM
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Hamlin,
I bought the unit wired for 220 3hp. I think my saw runs pretty smooth but then I only have experience with this cab saw. All the people I ever worked for or around had contractor saws.

I may buy one of those fancy triple belt link jobs just to see if there's any diff in vibration.

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