Question about Delta X5 Dj20 8" Precision Jointer

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The infeed and outfeed tables on my DJ 20 are out of alignment

I am wondering how to align the tables on my Delta DJ 20, 8" Jointer can be aligned, if possible. I am getting jointed edges that have a slight convex edge. (slight bowing) It is my understanding that slightly convex (cupped) is actually a good thing, but what I have is very bad for glue ups. Any help would be greatly appreciated. Thanks

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This is common on joiners due to moving of the machine by lifting it around by lifting it by the end of the infeed and outfeed tables. It causes the tables to be moved out of alignment due to the weight of the machine, it must be moved by the base or you always have this problem reoccur. Raise the infeed table so that a 6' to 8' straight edge will clear the cutter blades. At most automotive stores or machinery supply stores you can purchase shim kits (.0001" to .0015") you won't need much, the best because they are a hardened metal or stainless, you can use foil or hard paper in a pinch but it won't last. The outfeed table is only ment to adjust for the cutter height only. Under the out feed table are the wedge slides, loosen them as needed (not to loose) untill you can lift the table enough to slid in the needed shim, start with a .0005" shim. Put same size shim on both sides unless the table is out of level with the infeed table. The shim needs to only go in about an inch, not the entire lenght of the slide, this will raise the end of the table to bring it up. Retighten the wedge slides, pretty tight but not torqued. Check it with the straight edge to see how you did. You probably will have to repeat the process with other thickness shims till you get it right, unless you get lucky the first time. It took me two or three trys. The proof is when you get a straight edge on your wood. Have Fun!

Posted on Jul 15, 2009


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Adjustment on dewalt planer

I don't know which planer you have, but if all the planing happens on the top side of your stock then all surfaces underneath should be at the same level.
If you have a fancy planer that cuts on the bottom side, then the outfeed table should align with the cutters and the infeed table would be adjusted below that by the cut thickness (like a jointer

Mar 17, 2014 | Dewalt DW7351 Folding Table for DW735

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My outfeed table does not run level with infeed table . How do i adjust?

The most important part of the jointer is that the cutting edge is perfectly level with the out feed table, then, bring up the infeed table, with straight edge on rear, make all adj necessary to get these things lined up flat, not level, but flat, straight, even. Then it will cut perfectly flat and even. no snipes,. Hope this helps.

Feb 05, 2012 | Delta Masonry Tools

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HOw do I adjust the tables so I do not get a snipe?

Adjusting a jointer to relieve snipe can be trickey but here are a few procedures that will help.

-The two tables on the jointer are adjustable, the front (infeed) is what you adjust for cut depth.
- The back (outfeed) needs to be the exact hieght as your knives

The outfeed needs to be adjusted first
-unplug jointer
-using a straight edge on the outfeed table adjust it so that when you turn the head (counter clockwise) the knives just touch the staight edge (NOTE** all the knives should touch the straight edge the same, if not your knives are not set correctly) This is your most important adjustment, if the outfeed is to high or to low it will cause inconsistant jointing.
-Now that the outfeed is trued up to the head you can adjust the infeed table, using the straight edge align it so that it is perfectly lined up with the outfeed table (not touching the kinives) Your jointer is now at ZERO

You can now adjust the infeed for depth of cut, Start by lowering the infeed a very small amount (1/16 of a inch to start)

The biggest problem I have seen is that people try to cut to much at one time, it will work alot better if you take several small cuts instead of one deep cut.

Also- getting the knives set perfectly in the head is a key to success, if this is not happening you WILL have jointing problems. ALSO if the knives are not sharp they will pull the material down causing snipe.

I really hope this helps and if you need a visual aid try looking it up on you tube.

I have used my jointer for numerous different projects, Here is a cool one for tapered table legs.
Take a piece of square stock (like 2x2 ) about 3 feet long, make a mark about 2 foot up and wrap a piece of tape around it at the mark.
now make a mark (we will call it a stop mark) on the fence of the jointer by the head.
with a pencil and number the edges on the 2x2 (above the tape so you dont joint them off)

turn on jointer and run side 1 until your tape is at the fence mark, carefully lift 2x2 and do the same to the 2 side.
only joint the #1 & #2 sides, run several more times and you will have a perfect tapered leg.


May 02, 2011 | Masonry Tools

1 Answer

I have a Delta DJ-20 X-Series 8" jointer. I cannot get the infeed and outfeed tables level wth each other. It appears that the outside ends of both tables are to low. Any suggestions?

If you are still interested, write back, but in general you will find a wealth of information online if you search "jointer tune-up" Fine woodworking has had several excellent articles over the years detailing the steps required to adjust the gibs or parallelogram table ways to compensate for this type of sag.
It is time-consuming but worth the effort if you wish to joint straight edges. Maybe check your local library for back issues on microfiche or some such. Sometimes you can get a bit of the sag out by merely cranking on the tightening knob a bit, but that works better on a machine with dovetailed ways and gibs.

Apr 30, 2011 | Masonry Tools

1 Answer

I have a Jet JJ-6CSX jointer. I felt the knves were out of alignment and tried to reset them. I also took the opportunity to remove them and clean everything out. I reinstalled the knives and re-aligned...

First off, the stripped screw may be a major problem. If it is just the screw threads that are stripped, you are in luck. Try getting something under the screw head as you turn it out and pry at the same time (a putty knife maybe). Once out you can check both sets of threads (male & female).

You should not have needed to adjust the tables unless they were out of alignment from the factory or had been in use a long time. The first thing to re-do, is align the tables properly. Once that is done you can then go back to re-setting the knives.

My other suggestion is to ask someone who has knowledge in this to give you a hand. Maybe a local woodworker or woodshop or high school shop teacher.

Aug 08, 2010 | Jet Masonry Tools

1 Answer

How do you make the outfeed and infeed tables paralell? The infeed table closest to the blade is a little lower than the other end? Any suggestions?

Instruction manual is here.

Exploded diagram is here.

I'm pretty sure you're saying your planer tables are not coplanar. is worth watching. Despite his comments about a level, a decent level works fine for making sure your tables are flat and coplanar on smaller units like this.

On more expensive planers there are gibs that can be adjusted to fix this issue. Your part list doesn't list any gibs, so it looks like you will have to loosen the screws holding the infeed or outfeed table in place and shim it. You can use a metal feeler gauge to figure out how much need to shim it.

Also, if you're still in warranty, Delta may be able to replace your unit. If you're going down this route, I'd recommend you take a level and your unit into a service center so you can show them the problem.

Be aware that the replacement "could" be worse than the original. Be sure to check it. I recently waited 6 weeks for a replacement fence for my jointer (mine developed a twist) and the new one had a 3/8" bow in that was ridiculous.

Unfortunately the Shopmaster line wasn't Delta's greatest and there have been a lot of problems with them. It might be worth keeping an eye on craigslist in your area, as decent prices can be had on jointers fairly regularly.

Please vote if this answer was useful.

Jun 10, 2010 | Delta JT160 Shopmaster 10 Amp 6 Inch...

1 Answer

How do I align beds on Jet jointer?

i found on some jointer/planers that this problem, is the way its designed. you can adjust the two feeds close but not close enough. what your supposed to do is push the wood thru one side with pressure on top and side(right hand), then when it touches blade slowly but steadily switch pressure part on the outfeed side. when you think anout it you are cutting an L shaped notch(until the end) so you dont want the side to be exactly parallel. table top jointers are tricky to use.

Mar 13, 2009 | Jet Masonry Tools

1 Answer

Adjusting the outfeed table on the Delta Model: JT-160

Sometimes you just have to shim them. If you've worked the gibs and can't get any more adjustment out of them, you might try buying some thin brass or copper metal stock (you can get it in rolls at Hobby Lobby) and use it as a shim to hold the table in the appropriate position.
It sounds crude, but that was the only way I managed to get my industrial 6" powermatic to true up.
Also bring the infeed table up to zero, aligned exactly with the outfeed table and check with a known true straightedge. This will help you to keep a clear idea in mind of which direction to move things when you're making adjustments.
If you can get the edges and diagonals straight, you're well on your way to straight cuts.
Make sure beforehand that the surface you're fixing to is flat and you're not clamping the machine down in a way that's torqueing the base.
Castings just aren't rested long enough these days before the surfaces are ground, and things twist a bit sometimes. You may be working with a surface not flat, and unable to get it perfect.
Good luck. I hope that helps a little.
You may need to use an auxiliary roller stand to support the outfeed of long boards to keep the weight from causing a droop that lifts the tail off the tables and prevents a straight cut.

Mar 12, 2009 | Delta JT160 Shopmaster 10 Amp 6 Inch...

1 Answer

Infeed Table leveling

Well, the infeed table is supposed to be lower than the outfeed table. This is how the jointer actually removes material to flatten a face or board edge. What is important is that the the outfeed table is level with the top of the cutterhead blades, so as you push material through the cutterhead, the outfeed table fully supports the workpiece.

The infeed table is supposed to be adjustable up and down to remove different amounts of material.

If both infeed and outfeed tables were aligned, no material would be cut (assuming the outfeed was aligned with top of the blades).

Feb 28, 2009 | Delta JT160 Shopmaster 10 Amp 6 Inch...

1 Answer


a jointer includes infeed and outfeed tables. A set of rotating blades is positioned between these two blades. A fence is set on one side of the jointer to serve as a guide. The infeed table and outfeed table are adjusted so that they are parallel, but the infeed table is slightly lower thereby exposing a small amount of the cutting blades. The woodworker then presses the lumber against the infeed table and pushes it onto the outfeed table; the rapidly spinning blades remove a small amount of material. If the wood is particularly warped, several passes on the jointer may be required.

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