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Bosch 3283 dvs sander has unbalanced spin

The sander seems to work fine when you switch it on, but when you touch the pad to the workpiece, you can feel something shift or slip. Then, as you work, you can feel the sander pulling you in small rotations - the sander is not just going where you want it to, it has some vobration or rotation that makes the sander shake somewhat, and does not sand the workpiece very well. The outside edge of the back of the sanding pad has a groove worn in it from touching the body of the sander as you use it.

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  • Alexi Malenky Jul 18, 2009

    Thanks for this. I inherited this sander from a friend's dad and was wondering if it was worth fixing. Sounds like my time and money would be better spend buying a new one. I was about to drop it off at a tool repair place who said it was probably an easy cheap fix.

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This means the sander has been droped and the pad support and/or the bearing orbit has been bent, maybe even the motor shaft. Never leave any power tool sitting on a bench, always set it on the floor, it will end up there at some time anyways. You can try replacing a part at a time and spend a lot of money and time, but is it worth it?

Posted on Jul 18, 2009

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