So you’ve got a PM that includes a step called “Inspect the Drive Belt.” What does this actually mean? In practice, it typically means the belt doesn’t really get inspected.
Let’s say this system is on a critical line, so this is a monthly PM intended to be done without shutdown. Here’s what you look for and listen for:
• Anything that’s not supposed to be there. For example, operators have started stacking crates right next to the belt drive. Or there’s debris, water, or grease on the floor. Keep the area clear.
• Excess dust on the belt guard (particularly the underside). An accumulation indicates something is going wrong, such as the belt is wearing quickly.
• Grease or grime on the belt guard (particularly the underside). This indicates excess lubrication, something to be avoided almost as much as no lubrication.
• Any sound that’s other than “smooth and quiet.” For example, a slapping sound or squealing spells trouble. Also ask the operator if the machine sounds different.
Also, test with a vibration tester.
