Perform and document preventative maintenance inspections and operations on all meters, gauges, recorders, charts, filters, belts, grease fittings, quench oil levels, lubrication levels, thermocouple checks, furnace internals, furnace mechanisms, safety devices, etc. to maintain proper work performance and a longer working life. Install, maintain, and repair all furnaces, equipment, and buildings in accordance with diagrams, sketches, operation manuals, and specifications, utilizing knowledge of electrical equipment, piping, and welding.