Measuring Roll Alignment as a Means of Preventive Maintenance in Tissue Converting, PaperCon 2010 Conference

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The importance of perfectly aligned rolls in a tissue converting machine is critical to avoid sheet breaks, printer registration problems as well as wear and tear on bearings. Preventive maintenance (PM) is designed to preserve and enhance equipment reliability by replacing worn components before they actually fail. PM in tissue converting machines include painting, lubrication, cleaning, adjusting and checking parallelism between critical rollers to extend the life of equipment and facilities. Its main purpose is to minimize breakdowns and excessive depreciation. Equipment and facilities should not be allowed to go to their failure point. In its simplest form, PM can be compared to checking and changing the oil in an automobile. Recent technological advances in tools for inspection and diagnosis have enabled faster and more precise equipment maintenance. In this report we discuss the practice of measuring roller alignment in a Four Color Central Impression Printer section of a modern day tissue converting machine using highly precise Ring Laser Gyroscopes (RLG’s) as a means of preventative maintenance.