Troubleshooting to ensure operation of machinery and mechanical equipment by completing scheduled, unscheduled/emergency, and routine preventative maintenance requirements on engines, motors, pneumatic tools, conveyor systems, hydraulic and other production machines by following diagrams, sketches, operation manuals, manufacturer's instructions and/or engineering specifications. Using root cause analyses to identify sources of problems on inoperative machines/equipment by observing mechanical devices in operation; listening for irregular noises, identifying problems by using visual inspections; using precision measuring and testing instruments.