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delta hybrid saw vibration

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Forum topic by jtlighting posted 05-18-2010 07:19 AM 3596 views 0 times favorited 16 replies Add to Favorites Watch
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jtlighting

27 posts in 2392 days


05-18-2010 07:19 AM

Topic tags/keywords: to cut is to create

hello all. i am new to LJ and would like to first say hello and praise everyone who has posted all of the informative info ive been reading.. this is my first post so bear with me they will get better i promise.. well heres my problem i think and i need some more input before i make my next move..I own a delta 36-714 hybrid table saw and for some reason im getting vibration.. the blade is squared to miter slot and 90 to table surface…so should i bolt the beast to the floor will this reduce the floor will this reduce vibration oh and by the way im using a forest woodworker 2 blade with a stiffener (blade is 1/8 kerf) is this too much blade for this saw i have used a thin kerf laminate blade to lay my floor down in my house but it still vibrated any help or suggestions would help

-- TO CUT IS TO CREATE.....


16 replies so far

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knotscott

7209 posts in 2837 days


#1 posted 05-18-2010 07:28 AM

Welcome to LJs!

Has the saw always vibrated or is this a recent development? Bolting it to the floor would be a bandaid that might not help much. The odds are good that it’s not caused by the blades….more likley a belt issue, pulley alignment, motor shaft, or arbor shaft. Try to isolate the source…start by removing the blade and running the saw….if it still vibrates, remove the belt and run the saw, etc.

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

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Reuben

4 posts in 2394 days


#2 posted 05-18-2010 07:29 AM

I had a pretty good vibration on startup and this fixed that:

http://www.rockler.com/product.cfm?page=6040&filter=link%20belt

Is there any play in the arbor or motor bearings? Any crud in the pulley valleys?

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jtlighting

27 posts in 2392 days


#3 posted 05-18-2010 07:30 AM

i tried with just the belt a still vibrates i took the belt off but thats not a good idea cause then the motor rests on the side of the cabinet due to the fact that the saw relies on the weight of the motor for the proper tension so whats next

-- TO CUT IS TO CREATE.....

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jtlighting

27 posts in 2392 days


#4 posted 05-18-2010 07:41 AM

as far as the link belt i also have looked into it but i have a few ?s about that as well how do i know how much i need since its sold by the ft and also do i need to change the pulleys for this im not that mechanically inclined and im afraid that taking my saw apart might cause more bad than good

-- TO CUT IS TO CREATE.....

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knotscott

7209 posts in 2837 days


#5 posted 05-18-2010 07:57 AM

Has the saw always vibrated or is this a recent development?

IIRC, the Delta 36-714 uses a serpentine belt drive system, so a link belt won’t work unless you change the pulleys too, which may not be necessary. Also, because this is a ribbed serpentive belt, it must line up with the grooves on the pulleys. Are the pulleys aligned with each other? How does the belt look when you pull it off? It’s possible that the belt took a set from sitting in that position for a long time. Does the vibration persist even after the saw has run for a while? You can prop the motor up with a piece of wood or something…if it’s still vibrating without the belt on, you’ll know that it’s something in the motor itself….it’s worth the effort IMO.

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

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jtlighting

27 posts in 2392 days


#6 posted 05-18-2010 08:08 AM

when i first got it it vibrated but i just figured that was normal then i started reading articles and watching videos and noticed that the other saws didnt vibrate like mine im gonna try to prop the motor up now and how do i check to see if the pulleys r aligned its kinda ackward considering i cant see all the way behind the saw the belt has alittle wear about 2 inches long on one side and after closer inspection i found a small gulley in the belt grooves thank god the service center is close to my house i just have to wait till thay open in the morning and hope they have one in stock do u know if the service technicians make house calls my warranty is still good

-- TO CUT IS TO CREATE.....

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knotscott

7209 posts in 2837 days


#7 posted 05-18-2010 08:25 AM

Could very well be the belt, but as long as its off, try firing up the motor to see if the vibration is gone. If it is, you’ll barely even be able to tell it’s running except for a possible minor kick when it starts. If it still vibrates, you’ll know that the motor needs to be looked at….if the service center doesn’t make house calls, you’ll be able to just remove the motor and bring it in, knowing that’s the source of the vibration.

Good luck!!

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

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jtlighting

27 posts in 2392 days


#8 posted 05-18-2010 08:28 AM

i propped the moter up and the vibrate is alot less than before but there still alittle are tablesaws of this nature no suppose to vibrate at all or is alittle vibration the norm

-- TO CUT IS TO CREATE.....

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jtlighting

27 posts in 2392 days


#9 posted 05-18-2010 08:29 AM

it feels like a massage machine now thats the only reason im asking

-- TO CUT IS TO CREATE.....

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knotscott

7209 posts in 2837 days


#10 posted 05-18-2010 08:58 AM

The motor running all by itself should be extrememly smooth. I have induction motors in my shop that I’ve accidentally left on because they’re so smooth an quiet. Even with the belt and blade in place it should only vibrate a little…more at start up and shut down, but very little in between. There’s an unscientific test called a nickel test, where you stand a nickel on end on your saw, and turn it on…the nickel should stand from start up to shut down. The variables are that not all nickels are the same thickness, where you place the nickel is a variable, an unlevel floor can cause it to roll, pushing the buttons can cause it to fall, wind from the blade can knock it over, etc. If the nickel stands during operation but falls at shutdown it’s really no big deal either, but if it falls from the vibration during operation there’s definitely a problem.

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

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sawblade1

754 posts in 2488 days


#11 posted 05-18-2010 09:13 AM

Check the alignment of the pulleys using a straight edge, the pulleys should line up with each other :)
if they don’t they are adjusted by two Allen key set screws located on the shaft of the pulley.
I have a Delta 36-979 and had the same problem :)

-- Proverbs Ch:3 vs 5,6,7 Trust in the lord with all thine heart and lean not unto your own understanding but in all your ways aknowledge him and he shall direct your path elmerthomas81@neo.rr.com

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jtlighting

27 posts in 2392 days


#12 posted 05-18-2010 05:59 PM

update
i went to the service center this morning for a new belt and just asked how much vibration is normal the guy said its not suppose to vibrate at all well come to find out after some more discussion in the last 4 months rockler has sold approximately 6 of these table saws same make and model with the same issues also what they do instead of just replacing parts they just replace the whole saw he told me to change the blade to a new one and if its still there they will replace free of charge due to the warranty still being in effect so getting ready to go to highland for a new blade and stiffener to see but im just going through the motions ill just call him in a couple of hrs to get the ball rolling on the new saw but is it my understanding that a little vibration (feels like a massage chair )normal or there shouldnt be any movement at all plus is this a safety issue or can i keep using the saw

-- TO CUT IS TO CREATE.....

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northwoodsman

242 posts in 3208 days


#13 posted 05-18-2010 07:10 PM

I have a similar saw (same saw with different fence) and it can easily pass the nickel test. It came out of the crate like that a few years ago. I have never had to make any adjustments to it. I use it 2-3 weeks out of the year and then it sits for 10-11 months before I turn it on again. The belt has never been an issue. It sounds like you have a “bad” machine. If I set a glass of water on mine, the surface is as smooth as glass with no ripples. When my saw is running it has the same vibration as my external hard drive on my computer or even much less than my laptop when the dvd is spinning if you want to use that as a reference point. They are really great saws. I hope you get everything worked out. Welcome to LJ’s!

By the way, I use a Forrest WWII without a stiffener or stabilzer and it works well.

-- NorthWoodsMan

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jtlighting

27 posts in 2392 days


#14 posted 05-19-2010 03:41 AM

update
new saw on its way (i hope ) it seems i just have a bad machine also the woodworker 2 blade actually made it vibrate more at least i get a new saw hope this one will work better than the crappy beast i have now but the service tech said that they will actually deliver it to my home once they get it and take the old one away so hopefully they will have tested it at their shop before it gets here notice i said hopefully

-- TO CUT IS TO CREATE.....

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a1Jim

115202 posts in 3038 days


#15 posted 05-19-2010 05:46 AM

Welcome to ljs
Knotscott is very good with saw problems and reviews.

-- http://artisticwoodstudio.com Custom furniture

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