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To adjust the pressure rollers, lay down a piece of ? Baltic birch plywood (or similar that you know is dead flat) to cover the entire rubber feed mat. ?That provides a reference surface from which you can measure the feed rollers and how their position relates to the main rubber-coated drive drum position. ?Then use a dial indicator or step blocks with feeler gauges to make sure both ends of both pressure rollers are the same distance from the plywood reference surface. ?You want the feed rollers to be about 2mm lower than the surface of the main drive drum if I recall correctly. ?It definitely takes some trial and error passes to get the pressure rollers adjusted. ?Too much pressure roller action and you will experience trailing-edge snipe / too little and the material will not feed consistently and you get leading-edge snipe. ?A Oneway Multigauge turned upside down is the best tool for to check the relative roller positions. ?