In Reply to: 1660 throwing over in milo posted by Dan on March 11, 2001 at 21:35:56:

You don't say if the machine does this on level ground or not. It may be doing it but not noticable until on a slope. Had a 1680 doing this with aftermarket concaves and grates. Found that the right end of the concaves were made inproperly. Could also be pinch point or lack of also causing your trouble. Have you also leveled and zeroed the concaves lately? If you have a short shoe machine with the new fan that could be compounding your problem. Just some ideas.