Anyone else have this problem? I was using the sander and suddenly the backing pad came loose! I pulled off the sanding disc and the screw was very loose. Took the screw out and examined the back of the pad, the plastic was chewed up. Kinda dumb design as the backing plate has a metal plate with 3 holes and the drive part of the sander has 3 tabs but the tabs don't engage the steel plate as it is covered by plastic. Reassemble it and torqued the screw nice and tight (threads look good) but even with some blue threadlocker the screw came loose in minutes. Also tried another backer with no damage to the plastic, same result. It has been dropped a few times over the years (3ft onto concrete floor) and perhaps it is running a little rougher but not dramatically so.
Any suggestions? It's my go to sander.
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