Maintenance is frequently regarded as a necessary evil and tends to be delayed or cancelled to meet production demands. Taking equipment out of service to make repairs or improve functionality can be a tough sell, especially if the only maintenance activity is lubrication. As industry has evolved, so have the practices and philosophies for how and when to perform maintenance and lubrication. More options and tools are now available to guide the actions of personnel for nearly all lubrication tasks. However, to truly understand how this evolution has changed the landscape, you must know where maintenance began and where it is today.