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Airide maintenance - construction, assembly and adjustment

Airides require minimum maintenance, but should still be inspected and adjusted or replaced periodically. The rubber can get hard and brittle and start to leak.

Fabric guiding - basic rules, guidelines and setup procedures

Guiding of all types of fabrics follows similar basic rules, guidelines, and setup procedures. Here are some of the most important ones…

Hydraulic power unit troubleshooting - symptoms, causes and fixes

Troubleshooting HPUs is easier when you evaluate the symptoms to determine root causes. These troubleshooting charts will help diagnose problems related to pumps, leaks, pressure, noise and heat.

Prevent problems by monitoring roll performance and conditions

When the machine is down, check rolls for: unusual wear or damage to the cover, fatigue-type cracking of the rubber and impact-types of cracks.

Press diaphragm problem causes work stoppage, a case study

A chronic press load/unload diaphragm rupturing problem crippled the operation of the press at a mill. Plate and diaphragm misalignment were only part of the problem. Further analysis pointed to nipping roll diameter changes and incorrect diaphragm specifications.

Troubleshooting rope runs - the four most common problem areas

Rope runs can be complex, and a poorly designed run can decrease machine complexity. They should be assessed periodically to find and correct problem areas.

Inspecting dryer cans - guide and recommended procedures

This article covers recommended types of dryer inspection and frequency. An inspection program is necessary to detect early signs of dryer component failure.

Common hydraulic valves - the proportional pressure valve

Proportional valves are commonly used to control pressure to a cylinder or hydraulic motor.

Vibration analysis - commonly used terms and definitions

This article provides definitions of terms that appear in a vibration analysis reports and may need further explanation. Graphics illustrate some concepts.

Hydraulic training availability and three oil filtration tips

Changing or adjusting the wrong hydraulic part can cause more issues that what you had before the change. Training is available from Valmet experts.