Perform system diagnostic, replacement and repairs on, but not limited to electrical hydraulic systems; and component replacement and repairs on, but not limited to: dippers, handles, swing, propel, crowd and hoist transmissions, hoist cables, GET (ground engaging tools), drill bits, drill pipes, hydraulic pumps and motors, engines, electric motors, gear boxes, compressors, auto lube systems, and hydraulic valves and hoses. Today, the operation consists of a 36,000-metric-ton-per-day concentrator that produces copper and a 150-million-pound-per-year solvent extraction/electrowinning plant that produces copper cathode from solution generated by run-of-mine leaching.