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Identify Varnish Potential and Avoid Unexpected Downtime

Identify Varnish Potential and Avoid Unexpected Downtime
Identify Varnish Potential and Avoid Unexpected Downtime The lubricating oil in gas turbines and hydraulic systems is increasingly subject to the ravages of varnish.  The debilitating effects of varnish are well documented.  The complexities associated with detecting varnish potential render routine oil analysis ineffective in reporting varnish. However, there are a number of technologies, although…
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Compatibility of Turbine Lubricating Oils

Compatibility of Turbine Lubricating Oils
ASTM D 7155 - Evaluating Compatibility of Mixtures of Turbine Lubricating Oils is Used as the Guideline for Compatibility Testing The method calls for two Tiers of testing. For Tier I, the method calls for preparing mixtures of the fluids to be evaluated, heating the fluids and the mixtures in an oven to a specified…
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How To Successfully Manage Change

How To Successfully Manage Change
How To Successfully Manage Change Whether implementing a maintenance reliability improvement program or a new CMMS, it is necessary to have buy-in at all affected levels to facilitate change. No matter how large or small the change is, to realize success requires education and awareness. Everyone involved and affected should understand the nature of the…
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Why You Should Never Reuse Your Oil Sample Tubing

Why You Should Never Reuse Your Oil Sample Tubing
Why You Should Never Reuse Your Oil Sample Tubing Oil sampling tubing should never be reused.  To avoid minimizing sample contamination a new line of tube should be used for each sample taken. A company recently hired me to train their samplers.  The company used the drop tube method to collect their oil samples so…
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Lubrication: Not Too Much and Not Too Little

Lubrication: Not Too Much and Not Too Little
Lubrication: Not Too Much and Not Too Little Did you know that the two most common failures for bearings are over lubrication and under lubrication? If a bearing is over lubricated, the bearing can be pushed excessively by the lubricant causing additional wear of the bearing. If the bearing is under lubricated it will rub…
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Understanding Oil Viscosity: The Thick and Thin of It

Understanding Oil Viscosity: The Thick and Thin of It
Understanding Oil Viscosity: The Thick and Thin of It If you have a gearbox with a manufacturer’s nameplate instructing you to use the American Gear Manufacturer’s Association (AGMA) #4 viscosity oil at a given operating temperature, or if it specified a 750 SSU viscosity oil, would you know exactly what viscosity oil you need? If…
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