Grinder Repair – Replacing the Flange Nut (DeWALT Part # 636226-00)
Grinder Repair – Replacing the Flange Nut (DeWALT Part # 636226-00)


The lock nut is one of two flanges that secure
the grinding wheels to your grinder. It has a 5/8-inch threaded hole so it could
be secured to the grinder’s spindle. One side has a 7/8-inch hub for attaching
standard grinding wheels to the grinder. The other side is flat and can be used to
secure thin cutting disks or diamond wheels. The hub on the lock nut can wear over time,
causing the grinding wheel to wobble. Replacing the lock nut is a repair that you
can do yourself, and I’m going to show you how. Hi, I’m Mark Sodja. Do-it-yourself repairs like these are easier
than you might think. From lawn machines to cordless drills, kitchen
mixers, outdoor grills, our how-to videos will walk you through each repair from start
to finish, so doing it yourself means never having to do it alone. Let’s get started. I’ll begin by removing the nut from the grinder. I’ll engage the spindle lock and use my wrench
to remove the nut. Now, I can install the new nut. I would place whatever grinding wheel I was
using onto the grinder. If I’m using a standard grinding wheel, I’ll
install the nut so the side with the seven-eighths flange is down against the wheel. If I was using a cut-off wheel or a diamond
cutting wheel, I would install the flange so the flat side is against the wheel. Then, I just thread the nut onto the spindle,
engage the spindle lock, and secure the nut with the wrench. That’s how easy it is to replace the nut on
your grinder. Be sure to check back often for new videos
and expert advice. If you found this video helpful, give us a
thumbs up and leave a comment.

3 thoughts on “Grinder Repair – Replacing the Flange Nut (DeWALT Part # 636226-00)”

  1. 1ljs says:

    Really!! We need a video to show us how to change the nut, the same nut that we remove and replace every time we change wheels? I guess.

  2. MaquiNando says:

    man… that was too basic

  3. RyeOnHam says:

    I can't get it to work. Keep spinning the nut counterclockwise and nothing happens. What direction do I spin the nut on?

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