This guide is a companion to the "High speed planer adjustment Manual" published by Forintek Canada Corp. Precision tools have been developed to control and to properly adjust all critical parts in planers. Methods to measure depth of cut and to align planer guides and ancillary equipment are suggested. Practical indications are also given for level and parallelism. Finally, the guide provides information on knife grinding, causes of surface defects and maintenance tips. Operators, mechanics, quality controllers, engineers and plant managers can all benefit from this practical Manual.