612 & 618 Hand Feed Surface Grinder Manual

Instruction manual for the Harig 612 and 618 hand feed surface grinders, covering everything from initial installation and setup through daily operation. Details safety precautions, nomenclature, power controls, and the full range of grinding functions including longitudinal feed, crossfeed, and elevating mechanism adjustments. Explains wheel mounting procedures and proper use of grinding magnetic chucks. Maintenance section addresses cleaning and lubrication schedules to keep both machines running smoothly. Troubleshooting guide tackles common operational issues including chatter and vibration marks, longitudinal lines, inaccurate grinding surfaces, motor problems, oil dripping, inconsistent downfeeding response, feed mechanism malfunctions, and crossfeed difficulties. Includes technical drawings and original equipment part numbers for the lubrication system, spindle and elevating assemblies, elevating assembly detail, crossfeed assembly, and longitudinal hand feed assembly. Essential workshop reference for operators and technicians maintaining these precision surface grinding machines.