Hi all,

I have a Porter Cable 505 half sheet sander and it has always been
great to use. Lately it has been skating and jumping all over the place
with just a little more than the weight of the sander on the board.
Have any of you had the same problem?
Do I need to replace the pad or maybe the bearing?

Thanks in advance,

Bruce

On 28 Nov 2006 09:18:17 -0800, "bikerb422"
wrote:

Hi all,

I have a Porter Cable 505 half sheet sander and it has always been
great to use. Lately it has been skating and jumping all over the place
with just a little more than the weight of the sander on the board.
Have any of you had the same problem?
Do I need to replace the pad or maybe the bearing?

Thanks in advance,

Bruce


Maybe a bent motor shaft? Probably it got dropped or set on its side
while it was running.

Take it in to a PC service center. This was a common problem with the
505s at a cabinet shop where I used to work. Pretty easy fix, be it
bearings or motor parts or pad.