All Replies on High jumping sander

Does that sander have the “belt” that controls the speed of the unit? I’ve had that go bad on my Porter Cable ros.
That can cause the jumping you’re having.

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Does that sander have the “belt” that controls the speed of the unit? I’ve had that go bad on my Porter Cable ros.
That can cause the jumping you’re having.

I don’t know, I’ll have to check that out, when I had it apart I did not see a belt though.

-- Smitty!!!

I have looked at the parts list and can’t find a belt, still looking for solution.

-- Smitty!!!

from what I can tell looking at parts list it is a brake pad that must be worn that causes the problem. I will order one and see if that fixes it.

-- Smitty!!!

I had an older PC ROS that did that. I still have donuts in a couple of projects from that POS. I’ve found newer sanders from Bosch and Makita perform better, but while I still used that one placing it on the work surface and giving it a two-handed grip before powering on eliminated the problem.

-- Knowledge is not skill. Knowledge plus ten thousand times is skill. -- Shinichi Suzuki