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Example hydraulic maintenance schedule - daily, weekly, annual

The need for hydraulic preventive maintenance is determined over time by component operating conditions. The schedules in this article are intended as guidelines.

Safety recommendations to minimize risks in the woodyard

This article lists safety precautions for woodyard area operations, starting with general safety and proceeding to equipment specific safety such as debarking, chipping, flaking and screening.

Machine direction coat weight barring solved, a case study

Chronic machine direction coat weight barring at this mill was traced to reel vibration and solved by installing a compliant reel drum cover.

Understanding the Converflo and Concept IV-MH headboxes

Converflo headboxes use a dump valve as a vacuum breaker. When functioning correctly the valve prevents damage to the flow sheets when the headbox is shut down.

The purpose, operation and maintenance of belted threaders

Typical threading of a winder starts at the unwind stand and continues to the cores. The equipment used to thread the sheet must be maintained for optimal running. This is a refresher on general operation of a belted threader, installation of belts and maintenance schedule.

Troubleshooting cores falling during a winder auto setchange

Every winder core loader eventually runs into the same problem at some point - the cores fall during the set change process. This article lists safety concerns, probable causes and corresponding corrective actions to diagnose and resolve this problem.

Webinar presents ways to improve safety around the winder

The batch process occurring five to ten times per hour at the winder represents one of highest potential areas of danger in the mill for operators and maintenance personnel. A free webinar on August 3rd, 2016 explored ways to mitigate this risk. The webinar is now archived and available for playback.

Easier boiler outages with Liquor to Liquor Shutdown Service

Planning and executing a boiler outage can be a major challenge. Valmet has created a new lean concept for liquor to liquor recovery boiler outages that is easy, fast and trouble-free.

Reading fluids circuit diagrams - hydraulic & pneumatic symbols

Reading hydraulic and pneumatic circuit diagrams and being able to make sense out of them is a valuable skill for mill personnel. The first article in this series presents fluid control elements.

Review of the types of roll misalignment and alignment methods

Alignment of rollers is critical to keep the web and fabrics running true without wrinkles and tight/baggy lanes. Where the rollers are determines how good the alignment must be.