I have a DW733 with the same issue I have tried everything Cleaned the rollers replaced the belt even replaced the chains. I thought the chains where too loose. The new ones seem to have the same tension as the old. I think mine may have an internal problem in the gearbox that drives the rollers I just haven't been brave enough to take it apart but that may be next. I hope you have better luck then I have.My DW734 feed rollers skip when under a load. I have replaced the belt twice. Is there a way to adjust the tension on the chains that drive the rollers?