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Troubleshooting Hydraulic Pumps

  Troubleshooting Hydraulic Pumps When a hydraulic problem occurs, usually the pump is the first thing changed. In most systems, the pump is among the most expensive of components, the one likely to take the longest to replace, and the part that will make the biggest mess, yet of all the components in the system…
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Oil Analysis Test Frequency Guidelines

Oil Analysis Test Frequency Guidelines There is no universal formula for determining oil sampling frequency, but most experts consider monthly sampling to be optimum for critical machinery.  However, when making this decision, it is important to consider the objectives of the oil analysis program. If the only objective is to perform condition-based oil changes, the…
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Sources of Barium

Sources of Barium Barium was a detergent additive metal found in natural gas engine oils, but is no longer allowed in products manufactured in North America due to toxicity concerns Greases, though, continue to use barium in the form of a thickener system. Machines with greased seals or those having undergone recent maintenance may exhibit…
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Sources of Zinc

Sources of Zinc Zinc is an additive metal found in all anti-wear (AW) additive packages. Only when the zinc level deviates more than 25% from the new oil or reference value should a concern be raised, but the likeliest cause if mixing or topping-off with a different product. The zinc level in AW oils is…
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Sources of Phosphorus

Sources of Phosphorus Phosphorus is an additive metal found in all anti-wear (AW) and extreme pressure (EP) additive packages. Only when the phosphorus level deviates more than 25% from the new oil or reference value should a concern be raised, but the likeliest cause if mixing or topping-off with a different product. AW oils can…
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Sources of Magnesium

Sources of Magnesium Magnesium is an additive metal commonly used in detergent additives. Only when the magnesium level deviates more than 25% from the new oil or reference value should a concern be raised, but the likeliest cause if mixing or topping-off with a different product. With normal and expected additive depletion due to usage,…
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