install and rebuild pumps and motors; install and rebuild air compressors; heat exchangers; replace bearings in all types of motors; replace seals on pumps; install and repair piping, valves, filters, hot water systems and associated controls; assist other mechanics and operators with major repairs and maintenance of building and equipment. Including but not limited to the following: rain gear, chemical protective clothing, supplied air and air purifying respirators, safety harness, sand blast hoods, flame retardant coveralls, flash suit with gloves and hood, hard hat, ear plugs, and safety glasses.