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How to loosen screws to remove blades from Ozito OZPL400A planer

The first step in the manual says ''Loosen the hex head screws with the spanner provided.'' There are three screws (actually bolts with hex head nuts) holding each blade in place. I can't get enough leverage with the spanner provided to get the nuts loose. I've tried WD40 but some of the nuts won't budge. Any suggestions? Thanks!

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  • O2BAHandyman May 13, 2009

    Thanks for the tips. Couldn't find Liquid Wrench but did find a similar product called "Bolt Off." I tried it, along with a brand new mini-vice grip -- also tried tapping the nuts with a metal punch -- still won't budge. The nuts are partially stripped at this point. Will look into the other things you mentioned (like the air ratchet wrench and propane torch). The planer wasn't too expensive (under $100) so I might just have to buy a new one.



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WD-40 is nice for some situations, but not this particular one. I suggest you use something like Liquid Wrench. Apply, tap the nuts on each side with a metal punch, and a very small hammer. Not hard! You're just trying to bust any rust loose, and give the liquid wrench a chance to ease down in there.
Just tap!

How are you holding the bolt head on the other side? If these nuts are so corroded that this method won't free them, you make want to see if a 1/4 inch air ratchet wrench is available. The wrench is shaped in a 90 degree angle, so it should fit down in there. Have any mechanic friends? The bolts may break. It may come to this. Be sure the bolt head is held secure, so that no damage will come to the planer. If they, or it, breaks, you can just replace them. Make sure they're Grade 5 or above, bolts and nuts.

I've had to use a small propane torch to heat the nuts. The rust breaks free. I hope it doesn't come to this.

Posted on May 10, 2009

  • joecoolvette
    joecoolvette May 14, 2009

    Is there a way you can get a single blade hacksaw, and cut across the
    nuts? (Mini hacksaw. Looks like this, ) Come down from
    the top on these nuts. Once you slice through one side, they should
    release enough, that those mini vise grips can take them off.
    (If not, cut a chunk out of one side of the nut)

    If you get time, I would appreciate it if you would rate my answer.



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