Question about Craftsman 1212 in Thickness Planer

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I was using my planer, working fine, then all of a sudden it won't self feed. the knives turn, but won't accept the board. it's a 12-1/2 craftsman planer model# 351.23378. what do i need to fix this?

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Feed roller belt broke .......on one end of rooler there is a belt that has broken and needs replaced

Posted on Dec 31, 2010

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1 Answer

Planner feeds but won't cut


The knives may need to be adjusted further out, or they may be badly dull, or they may be worn too far to be resharpened, or the cutterhead drive belt may be broken.

Jan 14, 2014 | Craftsman 1212 in Thickness Planer

1 Answer

Severe sniping with planer


You will always have snipe at the end of planed boards equal to the distance from your infeed and outfeed rollers. It's severity is determined by how much the board sags or dropps behind the planer until the second roller catches the board. Some planers have extended tables to help with this. What you can do is hold the board up as much as possible and still let the infeed roller move the board smoothly until the board contacts the outfeed roller.

Jan 30, 2013 | Craftsman 12 amp 12-1/2" Bench Planer...

1 Answer

Planer will not get up to speed


I suspect that the works are clogged up with wood chips or some long fibers like hair or string. You will have to do enough disassembly so that you can pull out the chips that are wrapped around the shafts, without removing the blades or any of the shafts themselves. The motor, the cutter, and the feed rollers could all be clogged up - as well as the speed reducing mechanism that makes the feed rollers turn slowly. Using compressed air will not do the trick. Needle-nosed pliers and a nut-pick will probably do it. Hair can be hard to see - so be thorough in cleaning. Good luck.

Dec 20, 2012 | Craftsman 12 amp 12-1/2" Bench Planer...

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When feeding a board say about 8 ' wide into the planer it comes out the other end crooked at about 20 degrees.what can be causing this.The model is Delta TP 305 , 12 1/2".


There are a possible number of causes, few of which can be adjusted away.
However, check to make sure the base of the planer, the table under the board is clean and free of pitch and scratches or debris that could interfere with the smooth passage of the board. I use Trewax or some other paste wax on mine to facilitate the board's passage.
You may have a feed roller that is tighter on one side than another, i.e. it is closer to the table on one end than the other end of the roller. It's unlikely there's anything you can do about this, even if you were to make the appropriate hardwood block needed to measure the roller's height at different positions across the table. Small portable planers are prone to this, and often your only recourse is to hold the board straight as it feeds through the machine, by exerting gradual pressure on the side against which it twists.
Finally,it could be the boards that you're feeding into the machine are not flat or have non-parrallel faces to begin with, so the knives of the planer are forced to take a deeper cut off one side of the board. Take a lighter pass and see if the board runs straight. You might be hogging too much off for the planer.
Or the knives could be dull, or knicked, or improperly adjusted and not parrallel to the cutterhead.
But this can be a problem even with industrial quality machines. Normally we just hold the board straight and move on the the jointer or the table saw. It's frustrating behavior, but you can only spend so much time tweaking machines, and then you have to get on with the woodworking.
Hope that helps somehow.

I hope this information allows you to resolve this issue. If you need further assistance, please post back with a comment to this thread.
If I've managed to answer your question or solve a problem, please take just a moment to rate this post....thanks!

May 08, 2011 | Delta TP305 12 - 1/2" Portable Planer

1 Answer

WHEN PLAINING A BOARD IS COMING OUT WITH A UNEVEN PLAINING ON THE ENDS OF THE BOARDS ABOUT 3" TO 4" FROM THE EANDS.


this is normal with all planers, when you feed the board in the planer there are two feed roller one on each side of the knives so you get uneven pressure on the board at the start and at the end of the board .when planing boards for a project always add 10"inches or more extras then cut to lenght after planing to thickness required. never cut boards to length before planing .

Apr 11, 2011 | Dewalt DW735R Reconditioned Heavy Duty 13"...

1 Answer

When I feed the board in it stops then starts again. ever four inches. Leave a little snip in board. I've replaced the belt an the chains on the in feed and out feed still have this problem.


Couple of things to check:
1. Are your knives sharp? Dull knives will cut not fast enough to keep up with the rollers.
2. What is the depth of cut? Dewalt's planers cannot plane a board to excessive depths.
3. Are you rollers clean? Dirt, pitch or possibly grease could affect your feed rate.
4. The belt/chain for your rollers engaged or are they slipping? Open up the planer and check for wear or possibly broken belt/chain.
Snipe is usally caused by improper support while exiting the planer. Use outfeed rollers set to the correct height. Also chek that you outfeed bed is aligned with the bed of the planer.
Hope that helps,

Dec 20, 2010 | Dewalt Tools & Hardware - Others

1 Answer

Self-feed is not working. When board is manually fed, it just stops and will not advance.


Sounds like the belt broke or the drive gears have an obstruction preventing them from turning.

the only other possibility is that you are trying to take too big a bite at a time but I would check the drive mechanism.

Nov 24, 2010 | Dewalt DW734 Heavy Duty 12 12" thickness...

1 Answer

Dewalt735 Planer will not drive wide boards thru planer


I use denatured alcohol to clean the rollers on my Makita, and it doesn't seem to have harmed them over the years, but I do this infrequently. If your rollers are coated with pitch and or chips they won't feed well, no matter how they're adjusted.
(I don't think this planer has the capability to adjust the spring tension on the rollers, but I could be wrong.) You can consult the manual online at http://www.dewaltservicenet.com/Products/DocumentView.aspx?productid=22538&typeId=7605&documentId=21151
If you can attach dust collection to the planer it will probably help.
Also, the direction of the grain makes a difference when trying to plane boards as dense as poplar, (which has a kind of weedy, roey grain sometimes, that would prefer to tear out.)
For example, if you were feeding the board from right to left of the page, the grain on the side of the board should look like this//////// instead of this\\\\\\, which will have a tendency to tear out and jam the planer. If you can make sure the boards feed through in the right direction, this may solve your problems.
I heartily recommend the wax, as well. And possibly compressed air with a nozzle to blow chips aside.
Also consider the length of the boards and the effect of the drop weight on the planer's rollers if there is not an extension roller in place (or a worker) to hold the board as it makes its pass through the machine.
If you feed the board with the cup side down to begin with, taking light passes to smooth the top face, then flipping it over end over end and feeding the other side in the opposite direction, flattening first one face, then the other, you might have better luck.
Aside from all this, a surface planer isn't a jointer, which is designed to straighten & flatten boards, and portable planers in general won't perform as well as industrial models of the same capacity.
If you will continue to be running a lot of stock through your machine, you might want to consider investing in a used 13" Rockwell or Delta or some such cast iron planer, with rollers top and bottom to facilitate movement of course material. They aren't as portable, but might save time in the long run.
On a final note, there's no replacement for sharp knives. Even the best planer won't drive stock well when the knives get dull.
Best of luck!

Jan 18, 2009 | Dewalt DW735R Reconditioned Heavy Duty 13"...

4 Answers

Planer is not feeding wood through without manual force


I had the same problem...sometimes you have to take the smallest amount off (1/64th) and it might work, otherwise your blades are probably dull. Try to feed the boards through the planer towards the sides, not just the center so they wear evenly across the length of the blades. They wear out very quickly, which makes this planer very frustrating. If you take the top cover off and inspect them, you'll probably see nicks in them and it's time to replace or rotate them. Each blade has two sides you can remove all the screws using the T-handle wrench from the top cover and flip them. Also, as the blades begin to wear, the planer will become louder and louder. That's another way to tell. When you install new blades notice how much quieter it is when you plane boards.

Nov 13, 2008 | Dewalt DW735R Reconditioned Heavy Duty 13"...

1 Answer

Material stopped feeding


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Dec 30, 2007 | Sewing Machines

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