Question about Makita 3 x 24" Belt Sander

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Slipping belt My Makita belt sander 9924DB has suddenly started to slip its belts. Its as if the belts (3X24) are too long. The motor works fine, the roller spins but they don't grip the belts anymore. What's going on?

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OK the belt tensioning mechanism is spring loaded. First what is the quality of the belts are they real flimsy or stiff. You say the rollers spin but my question does the rear roller still spin and the belt remain stationary. If so the rubber belt on motor is bad. I would take a look for excessive wear on the rear roller. Does the yoke mechanism snap forward or move slowly, look for a build up of sawdust in this area that might be restricting movement on the yoke. The wear plate in still good condition. One other thing on the belts are they directional? Do they have an arrow on the inside if so that has to point toward front of tool. I looked at a breakdown and could not see anything else to suggest. I never had this problem except with belts when I was at Makita.

Posted on Jan 19, 2009

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