As a key part of almost any material processing operation, vibrating screens deserve special attention.
Watching and listening for problems, routine maintenance and proper inventory management are just a few ways to keep things running smoothly.
Identify problems
Before starting a preventive maintenance program, it’s important to identify what – if anything – needs fixing.
Start by listening to the vibrating screen for unusual noises. Grinding noises, for example, are unusual and a concern. Also, look for obvious signs of wear, such as broken or excessively worn screen media, cracks or other signs of damage.
A service visit from the equipment manufacturer can go a long way toward identifying problems and figuring out how to fix them. For example, some manufacturers implement a comprehensive service program to identify problems and give customers the solutions they need.
One step of that process is often using vibration analysis tools.
Accelerometers collect vibration data, which service technicians then use to give recommendations for improving performance and preventing machine failure. The data can point to problems difficult to catch with the naked eye that could lead to more costly repairs down the line, such as hairline cracks in the side plate or bearing complications.
Stay proactive to save money
Here are a few things to look for when doing proactive maintenance:
Daily: Take a daily look at cleanliness, proper greasing, loose parts and any changes in oscillating behavior. Keep the vibrating screen clean of sticky or caked-on material to prevent interference with equipment operation.
Weekly: Operations should inspect structural components and screen media installation weekly.
Monthly: Look at motor mount, belt tension and other wear components monthly.
Annually: Annual examination of the rubber mounts or springs is crucial.
Part management
Where an operation buys its vibrating screen components is another important consideration. It’s no secret that parts from the original equipment manufacturer often cost more than something fabricated at a local machine shop, but there is measurable value in sticking with OEM versions.
While fabricators have come a long way in regard to quality, there is simply no way they can guarantee the parts they manufacture meet exact OEM specifications. A component that is slightly off might not seem like a big deal, but being even less than a millimeter different from the carefully engineered OEM specifications can cause problems.
Related: Tips for selecting the right screen media
Plan, plan, plan
Operations should set preventive maintenance as a priority. A preventive maintenance schedule will pay off in reduced downtime and fewer repair costs.
Work with the vibrating screen manufacturer to not only optimize inventory management but also to ensure the best screen media and equipment for an operation. The result will be higher productivity, more uptime and peace of mind.
Wilm Schulz is a service manager at Haver & Boecker Niagara.