Work items Cisco-Eagle scheduled conveyor maintenance plan (typical) Check/lubricate all bearings, universal joints, and pulleys. Check chain tension, wear and lubricate. Check sprocket alignment, wear, and screw set. Check flat belt tension, wear and lacing. Check V May 12, 2015 Both predictive and preventive maintenance offer cost and efficiency advantages over a run-to-fail approach, but predictive maintenance can be thought of as a more-refined take on preventive maintenance. Preventive maintenance is structured around the life expectancy of various conveyor parts such as belts, bearings, and gear motors.