Preventive maintenance (PM) of mechanized production lines often requires visual inspection of moving parts such as motors, gears, belts, pulleys, chains, etc. Some parts may be obstructed from view by other machinery or hidden from view in enclosures or cabinets while the line is in operation. While conducting PM procedures, service personnel may routinely shut down a line, open the cabinets or enclosures, and check mechanical parts for wear. To… Read More