I have an issue with my Delta 8″ Jointer, it appears the in-feed and out-feed table are not coplanar anymore. I do not see where I can place shim stock to pick up the front of the out-feed table. It now appears that two gib screws on won’t tighten down to hold the table in place. Is there a piece of metal that might have slipped out of place that would ensure a tight fit. Any suggestions on how to get my problem resolved. I have struggled for the last few months on getting my problem corrected.