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Leveling top on the Grizzly G0690

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Forum topic by opium89 posted 10-14-2011 03:25 AM 1865 views 0 times favorited 17 replies Add to Favorites Watch
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opium89

26 posts in 2455 days


10-14-2011 03:25 AM

Topic tags/keywords: question tablesaw

Hi folks!

I took delivery of a brand new Grizzly G0690 yesterday. At this point, I’ve spent a few hours trying to install and level the extension tops on this saw but am as yet having any luck. It looks as though the extensions are completely flushed as the center bolt, but on both edges at the joint front and back the extensions insisit on slightly raising and sitting higher than the main table on the saw itself.

Anyone come across this and have some suggestions on what I can do to make it right? By the way, both of these extension pieces should be identical right? I mean, this top wasn’t machine leveled with a specific left and right side was it? The assembly instructions make no mention.

Any advice would be greatly appreciated, thanks!


17 replies so far

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HorizontalMike

7143 posts in 2374 days


#1 posted 10-14-2011 04:01 AM

What I did when adding my wings was to slightly snug the bolts and then “tap” with a hammer up or down to level the wings to the main table before tightening any further.

Things to check:
++Take a straight edge to the extension to make sure it is machined flat (p24 in manual).
++De-burr the edges of both table and wings
++If you HAVE to you could very slightly (<1 />) enlarge the holes. Only do if needed. I would try using ONLY the outer bolts FIRST, set the level and THEN add the center bolt(s) on each wing. See if that helps.

Good luck

-- HorizontalMike -- "Woodpeckers understand..."

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opium89

26 posts in 2455 days


#2 posted 10-14-2011 04:26 AM

Thanks, I’ll check it a little further. My instincts were telling me to work from the center out, but that’s obviously not working out very well. I’ll let you know what I find.

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opium89

26 posts in 2455 days


#3 posted 10-14-2011 04:49 AM

Just tried working with it a little more. I’ve definitely gotten it closer by taking the center bolt out, but I still feel a lip with my fingers once tightening them all snug. I seem to get in place perfectly flat then tightening the bolts completely seems to force the extension upward just enough to piss you off. How flat is flat? Coming from a Bosch contractor saw, I am not sure what I should be shooting for. I mean, it’s damn near close, but I can catch a nail when running across the joint once all three bolts are tightened. I don’t have the precision tools to measure, but I would guess it’s less than 1/128th.

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sandhill

2128 posts in 3384 days


#4 posted 10-14-2011 04:58 AM

Use a clamp on the outside, when you tighten it can cause it to nuge up just a bit. I had the same thing on my Delta. I used emery paper to clean and de-burr the matting surfaces and use shim stock on the bottom because it tilted down a bout 1/64th at the very end. It was a waist of time though because it has nothing to do with a perfect 90 degree cut because you set that at the blade.

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redryder

2394 posts in 2561 days


#5 posted 10-14-2011 01:15 PM

Wood Magazine’s current (fall 2011) “Best Ever Home Shop Ideas” has an article that is probably just what your looking for. Page 72-77. Good photos and info…..........

-- mike...............

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opium89

26 posts in 2455 days


#6 posted 10-15-2011 07:05 AM

Thanks! I’ll check for the Wood issue tomorrow. Also found this, which I will try tomorrow as well.

Pt. 1
http://www.youtube.com/watch?v=lxRSarTJLMU

Pt. 2
http://www.youtube.com/watch?v=eikAX0pDKX4

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opium89

26 posts in 2455 days


#7 posted 10-15-2011 05:47 PM

Well, I’ve tried everything I can possibly think of, including clamping it on both ends, and it still wont sit flat. It did appear to have a slight sag at the far end, which I shimmed with a bit of tape. The wing still keeps raising up when I snug down the bolts.

Here’s a pic of how close I can get it. Unless you have any other suggestions, I guess it’s going back to Missouri. !

@#$!

You can probably see it it better here:
https://picasaweb.google.com/lh/photo/LcvhL9V1gNurnGuG2-Wpzw?feat=directlink

View Richard's profile

Richard

1898 posts in 2150 days


#8 posted 10-15-2011 05:57 PM

You might call customer support and see if they will ship you a new set of extension tops before shipping the whole saw back. Also you might be able to have a local machine shop check the extension for flatness just to be able to tell the CS people how far out they are for sure.

View rsdowdy's profile

rsdowdy

105 posts in 2656 days


#9 posted 10-15-2011 06:05 PM

I think the picture is worth a thousand words. I’d call and tell them about how far the top is off..and off to send them a picture. I think you will find that Grizzly will send you a new top right away.

Royal

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Richard

1898 posts in 2150 days


#10 posted 10-15-2011 06:22 PM

Another thing to consider before doing any major rework to the table or top, is to make sure that the customer service rep told you to try it and you can validate this. No matter how good thier customer support is sometimes if you did any modification to the tool and then send it back, they can say you caused the problem.

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opium89

26 posts in 2455 days


#11 posted 10-15-2011 11:57 PM

I do believe I found the problem. After pondering this for a few more hours, I was thinking about exactly what could cause this seemingly strange and illogical behavior. Turned out my conclusion was very logical. I thought, the only thing that could cause this was an irregular surface. Now, being that I had checked the mating surfaces numerous times, I knew that couldn’t be the case. Then I started thinking, “Hmmm, what if the surface where the bolts meet the extension wing underneath were not flat?” “If there was a raised area there, that would perfectly explain why the damn wing was not only rising, but also moving forward when I tightened down hard on the bolt.”

Well….behold my wood-loving friends….

https://picasaweb.google.com/lh/photo/PUARm6ceEKl4MPoLFqgSrg?feat=directlink

https://picasaweb.google.com/lh/photo/gm5AcigHSe-UstLoH1WrHg?feat=directlink

Makes sense now doesn’t it? Cranking down on a bolt with washer smack-dab on top of this “pimple” is forcing the frackin’ table extension up and over to the right.

Now, what to do about it? Do I have them send me some new extentions, or should I just get out a good metal file? If you ask me coming from 10 years of automotive experience, these surfaces should be machined flat, and this is clearly an oversight from Grizzly.

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HorizontalMike

7143 posts in 2374 days


#12 posted 10-16-2011 03:18 AM

I am not able to open the images you linked.
I use FireFox

-- HorizontalMike -- "Woodpeckers understand..."

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opium89

26 posts in 2455 days


#13 posted 10-16-2011 04:20 AM

My bad Mike. I forgot to make them public. Here’s an embed for you too.

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fussy

980 posts in 2510 days


#14 posted 10-16-2011 09:11 AM

slip in there with a grinder, dremel, cold chisel and hammer; anything. Now that you have found the problem, the solution is simple. Congratulations.

Steve

-- Steve in KY. 44 years so far with my lovely bride. Think I'll keep her.

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HorizontalMike

7143 posts in 2374 days


#15 posted 10-16-2011 06:39 PM

Acne! That’s it! Dang pimples!...

-- HorizontalMike -- "Woodpeckers understand..."

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