Half of jointer out of square

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Forum topic by shelly_b posted 257 days ago 730 views 0 times favorited 12 replies Add to Favorites Watch
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841 posts in 752 days

257 days ago

I am having some issues with my jointer. I have the DJ20 jointer. When I make the fence square to the infeed table, then it is not square to the outfeed table and visa versa. My fence seems to be straight. What else could cause this to happen? Obviously that would mean it is in the tables, but I have never moved either table, and am a little scared to do so…Is there a way to “tilt” the table? I know I can raise and lower them, but I didn’t know they moved in other directions. This is the one tool I feel like I don’t know that much about mechanic wise. Thanks!

12 replies so far

View Loren's profile (online now)


7446 posts in 2282 days

#1 posted 257 days ago

You need to shim one of the tables on one side. Brass shim
stock will do it or if you have a feeler gauge you can break
it up to make shims.

I don’t know that jointer. Most have a set screw
on each side and tightening that screw can sometimes pull
that side of the table down a little. Loosening a screw
allows the insertion of a shim.


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841 posts in 752 days

#2 posted 257 days ago

Thanks Loren. When I got it, it had a lot of surface rust on the tables, but I don’t think anyone had ever removed the packing grease, so I took the fence and all the components apart for a good cleaning. So I am familiar with that, just not the tables. I guess the only way to learn is to tear it apart lol. I do have a cheap set of feeler gauges if the set screw doesn’t work.

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7446 posts in 2282 days

#3 posted 257 days ago

View Roger's profile (online now)


14408 posts in 1438 days

#4 posted 257 days ago

Gr8 link there Loren. You’re going about it the right way Shelly. You’ll learn more about your tools when you dissect them. Good luck with the fix.

-- Roger from KY. Work/Play/Travel Safe.

View TaybulSawz's profile


133 posts in 317 days

#5 posted 257 days ago

I’ve used cut up pieces of the thin aluminum Pop Cans for shims on my Grizzly Jointer tables. Seemed to work great for me.

-- Still got all my Fingers!!!

View pintodeluxe's profile


3335 posts in 1447 days

#6 posted 257 days ago

NO, NO, NO! Don’t resort to pop cans, you have a parallelogram jointer. Just adjust the cams that raise or lower each corner of the tables.
Brass or aluminum shims are only for jointers with dovetail ways.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

View joeyinsouthaustin's profile


1246 posts in 707 days

#7 posted 257 days ago

And really check that fence carefully for a twist, before you start messing with the tables.

-- Who is John Galt?

View 404 - Not Found's profile

404 - Not Found

2544 posts in 1603 days

#8 posted 256 days ago

Here’s a quick visual check for you Shelly. Wind the infeed table up to zero and place a straight edge along it and the outfeed table at each side. There shouldn’t be a gap between the straight edge and the tables. If there is a gap, it will indicate where the problem is. If the machine was handled by the tables it might have caused the problem.

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67 posts in 850 days

#9 posted 256 days ago

Great video on setting up a jointer like yours, with the cams for adjusting.

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Shawn Masterson

1253 posts in 583 days

#10 posted 256 days ago

you live close enough. you should sell it to me That will solve all your troubles.

View shelly_b's profile


841 posts in 752 days

#11 posted 253 days ago

Thanks everyone!! I have almost completely fixed the issue. Didn’t have time to make it perfect, but it is way better. It was moved by the tables since it is so heavy and we only had a 2 ppl to help move it. The one of the tables were drooping at the ends, so I raised the infeed table. The outfeed table was also just a hair too low. It was perfectly level with the blades, and was causing snipe and the wood to barely catch. I must have caused that when I changed the blades. Grizzly also has a great video I found on adjusting their machine(which is the exact same as my delta). I found and watched it before I got all these great replies. The woodwhisperer is great also! If anyone has a machine that grizzly has remade, I would suggest checking out their site if you ever have questions about it. They have a ton of videos and adjusting them and working on them, even if it is just changing a blade. They even have a video on how to put a helical cutter on it if I want to! Thanks to everyone for their replies!! I did exactly what pintodeluxe describes in his picture. Oh and Shawn, I would but since I fixed it I don’t need to sell it now;)

View Shawn Masterson's profile

Shawn Masterson

1253 posts in 583 days

#12 posted 252 days ago

Well you can’t blame a guy for trying

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