A professional who operates machines to grind logs or wood blocks into fibers used in making paper pulp, using one of following methods. Respnsibilities include:

• (1) Opens slide gate, tosses wood into grinder pocket, and moves lever to actuate hydraulic piston that presses wood against revolving grindstones.
• (2) Adjusts panel controls to regulate conveyor system that feeds wood to hopper of grinder machines.
• Straightens wood in machine pocket or hopper to prevent jams, using picaroon. Turns valves to regulate spray of water to cool grindstones and to control consistency of pulp.
• Turns handwheel to raise or lower dam to control flow of pulp from discharge end of machine.
• Observes temperature gauge and color of pulp for evidence of burns caused by dull or broken grindstones and notifies wood grinder, head of defects.
• May be designated according to type of machine operated as Pocket-Grinder Operator (paper & pulp); Ring-Grinder Operator (paper & pulp).