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Gyratory Crusher Maintenance

Fully utilizing the latest preventive machine maintenance technology can help save aggregates production business owners big money annually. Even performing minor clean-up and inspections around and on a daily basis can yield increased service life.

MaintainX

07/28/2022

Gyratory Crusher Maintenance

Fully utilizing the latest preventive machine maintenance technology can help save aggregates production business owners big money annually. Even performing minor clean-up and inspections around and on a daily basis can yield increased service life.

PERFORM DAILY VISUAL INSPECTIONS

Daily visual inspections on HSI crushers include monitoring key wear parts of the crusher, such as the rotor and liners, as well as benchmark items, such as coast down times and amperage draw.

Visual inspections are crucial. In the scenario where the conveyor underneath a cone crusher stalls, the material will build up inside the crushing chamber and eventually stall the crusher. Material can stay stuck inside that cannot be seen.

DON’T ABUSE YOUR MACHINES

Pushing machines past their limitations or using them for the application for which they are not designed or by neglecting to take certain actions are forms of abusing the machine.

In cone crushers, one common form of abuse is bowl float. “Also called ring bounce or upper frame movement. It is the machine’s relief system that is designed to allow uncrushables to pass through the machine, but if you’re continually overcoming relief pressures due to the application, that is going to cause damage at the seat and other internal components. It’s a sign of abuse and the end result is expensive down time and repairs,” says Schmidt.

To avoid bowl, it is recommended you check the feed material going into the crusher but keep the crusher choke fed.

USE CORRECT AND CLEAN FLUIDS

Always use the fluids prescribed by the manufacturer and check with their guidelines if you plan on using something other than what is specified. “Be careful when changing viscosities of oil.

Contaminants such as dirt and water can also get into fuel, either while in storage or when filling the machine.

MISAPPLICATION INCREASES MAINTENANCE ISSUES

Misapplication leads to a lot of repairs and failures.

Excessive reduction ratios reduce production rates and shorten crusher life.

If you exceed what an HSI or cone crusher is designed to do within its configuration, you can expect to decrease the lifespan of certain components, because you are putting stresses on parts of the machine that weren’t designed to bear that stress.

Misapplication can lead to uneven liner wear. “If the crusher is wearing low in the chamber or high in the chamber, you are going to get pockets or a hook, and it’s going to cause overload, either high amp draw or bowl floating.” This will have a negative effect on performance and cause long-term damage to componentry.

BENCHMARK KEY MACHINE DATA

Knowing a machine’s normal or average operating conditions is integral to monitoring machine health. After all, you can’t know when a machine is working outside of normal or average operating conditions unless you know what those conditions are.

Once you have logged enough data, you will be able to see trends in the data. Once you become aware of the trends, actions can be taken to make sure they don’t create unplanned down time.

By monitoring these and other potential indicators of machine health, you can identify problems earlier, before the equipment fails while in production, and the servicing can be scheduled for a time that will cost you little downtime. Benchmarking is key in executing predictive maintenance.

Source: MaintainX (Community Member)

Please note that any procedure, checklist, or other document available in the MaintainX Procedure Hub is provided for general education and information only and does not constitute legal, medical, or financial advice. MaintainX makes the materials available AS IS and AS PROVIDED, without warranties of any kind. By downloading or using any such materials, you assume the risk that they may not be appropriate for your specific situation and agree that you are solely responsible for any such use, including compliance with applicable law and with meeting any conditions of product warranties.

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