Question about Makita 2012NB Electric Planers

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Makita 2012NB slipping

My Makita 2012NB seems to be slipping, as boards are fed through, it seems to stop feeding momentarily, every second or two, i.e. it "skips." The primary drive belt seems fine, as do the roller drive gears and chain, including the very simple, effective chain tensioner. I have been planing redwood lately. I HAVE cleaned the rollers with EtOH, rollers which looked clean enough already, a cleaning which made no apparent difference, and I DID replace my blades not long ago, but I think they're dull (getting more dust than shavings). I was having this problem then, and don't think new blades made much difference. I think I'll go rotate them. My planer might have 50-100 hours on it. Any OTHER ideas? Do I need new rollers?

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  • Richard Savary Nov 28, 2012

    I had the same problem, the slipping or "skipping" (every so often to continuously) as some call it. It was getting progressively worse. I checked the primary drive belt, and the secondary drive gears and chain, and they all look perfect. With the sides off, I could see that all parts were functioning perfectly, but the rollers still slipped. They looked clean, but I cleaned them anyway, with EtOH... to no effect. So then, having read that the rollers might be glazed, I cleaned them again, this time with EtOH and steel wool (about 00). I also heard that waxing the platen with paste wax might help a lot, so I did that, too. The upshot is that it worked! I've planed several 12' boards today, 6-8 passes each, and it didn't skip or slip once, in fact, it's suddenly working almost like new. I think that drag from the platten, which has a certain amount of wear, may have contributed to the problem, but I think the rollers were the main culprets, that glaze causing them to slip, and my steel wool removing some of the glaze. I'm not sure if steel wool is the ideal treatment, but it seems to barely make a dent in them, and it does the job. I think that a new blade (I replaced it fairly recently, but have planed a lot of dirty, rough-cut lumber, and my chips have turned to dust), which I will install as soon as one rolls in, would also help to tune 'er up. Considering how reliable this planer has been, I don't feel any need to complain. This fix was free. Hope it works for you.

  • Richard Savary Nov 29, 2012

    The planer was, BTW, a Makita 2012NB...

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My makita2012NB was also slip too. I tried to fix it out then I found if I screwed the screw under the rollers tighter it could reduce this problem.

Posted on Jan 21, 2013

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Posted on Jan 02, 2017

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SOURCE: Makita Model 2012nb Planning 3 &4 ft. red

Stripped gear in the feed mechanism? Use another, thinner board to help feed the wood evenly as a stopgap measure.

Posted on Feb 28, 2010

rowdy45176
  • 2176 Answers

SOURCE: My 2012NB has served me well for about 10 years,

I just read the owners manual online at Makitausa.com and I don't see the reference to the feed rollers and pressure.. I would look at the condition of the planer blades to ensure they are sharp and not pitted. Then I would look at the feed rollers for being out of round. Let me know, it has been a couple years since I worked on one of them.

Posted on Jul 01, 2010

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SOURCE: My Makita 2012 planer 'skips' making a 'machine

Have you cleaned your rollers? I must admit, I'm having this problem with my 2012NB, I HAVE cleaned the rollers (with ethanol), and have taken the side covers off, and the drive chain and gears look just fine, as does the primary drive belt. I ran the planer with the covers off, and although the gears and belt seem fine, the planer still skips (or slips). I think probably your blade is dull, creating drag (I replaced mine not long ago, but have been planing a lot of rough lumber). I still haven't gotten to the bottom of it, but I think the rollers are slipping, I just don't know why yet.

Posted on Nov 28, 2012

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