Wood Chipper

Tends machine that reduces log slabs, stump wood, trimmings, and other scrap wood to chips of uniform size for making paper pulp and charcoal, and for use in wood distilling: Starts conveyor system that feeds wood into hopper of chipping machine.   
Positions pieces of wood on conveyor, using picaroon to prevent congestion and to regulate flow. 
May replace worn and bent knives, and adjust knives to vary size of chips, using handtools. 
May examine wood on feed conveyor for conformity to specified standards and remove nonconforming wood. 
May stop machine when jams or malfunctions occur, and clears machine or conveyor of wood pieces.