So I'm crammed in the corner on a rarely used bench and somehow catch the extension cord to a PC 1/2 sheet Heritage sander and the thing hits the concrete floor. Now when I hit the trigger it makes a rather disagreeable noise and oscillates pretty wildly. I took the base off, but there didn't appear to be any damage. I'm thinking that somehow the spinning weights got knocked out of balance (or further out of misbalance). Anyone know how to fix or repair this type of damage?
JP