Quick Check of Accumulator Precharge
Watch the gauge showing pressure at the hydraulic side of the accumulator. Start the pump. The gauge will “jump” to the accumulator precharge …
Monitor Equipment Performance
PLCs with PID loops can often be used to monitor equipment performance, sometimes even without adding dedicated sensors. For example, consider a simple …
Beware Design Cost and Space-Saving Pitfalls of an Undersized Reservoir
The improved oil-cooling technology of recent years has resulted in many hydraulic reservoirs being designed to reduce initial cost and take up less space. …
Spur Gear Pump Displacement
So you need to replace an unlabeled external gear pump originally sold by Cro-Magnon Hydraulics during the First Crusades, and sadly you have no idea of the …
Wear Band Materials and Pressures
Phenolic wear bands were a mainstay in hydraulic cylinders, however due to the formaldehyde content, they have largely been replaced by glass-filled nylon. If …
Hose Abrasion
When an operation relies on hydraulic hose, evaluating it for potential abrasion is paramount. Industry and user experience agree 70% of failures are a direct …
High-Temperature Seals
What is “high temperature” in hydraulic-sealing applications? Most hydraulic seals are NBR rated at 250ºF. So is anything over 250ºF high temperature? …
Money Wasted Due to Air Leaks
ONE THING I FIND in maintenance costs is money wasted due to air leaks that drive a compressor runtime through the roof and the electric bill along with it. A …
In the “Heat” of the Moment
IN THE “HEAT” OF THE MOMENT of a pneumatic system troubleshooting exercise, skilled workers frequently overlook the most important step. If this step is …
What’s in Your Toolbox? – Digital Measuring Tools
As technology advances, prices tend to become more affordable. Digital measuring tools have advanced into the 21st century. What was once reserved for …
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