I have a 1986 delta invicta jointer made in Brazil. Everything works fine except the fence which won't stay at 90 degrees, After tightening and face planing a few boards, the bottom kicks back. I have read everything I can find on this. This past weekend I disassembled the fence from the carriage. There were some indentations on the rod the fence pivots on so I rotated it so the set screws have a fresh surface to tighten against. I raised the carriage so it was dead flush with the outfeed table, cleaned everything and reassembled. Today same problem, fence moves after face planing a few boards. I did notice the front end of the fence now is touching the infeed table but is off the tables everywhere else. I don't have a clue what to try next. Anybody have a suggestion?
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