The employee must regularly lift and/or move up to 20 pounds, frequently lift and/or move up to 50 pounds and occasionally exert forces of up to 100 pounds to lift and/or move objects using a hand truck or other manual lifting devices. Replaces worn or defective parts such as panels, switches, pumps, compressors, bearings, transmissions, belts, gears, blowers, and defective wiring.