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Restarting a Hydraulic System

Restarting A Hydraulic System That Has Been Repaired After A Failure. Important questions to ask and answer before restarting a repaired system. Has the cause of the failure been identified and repaired? If NO, investigate further. Too often components are replaced without really identifying the cause, thus another failure is almost assured. Could contaminants have entered the system when it...

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Pump Selection

Pumps: The “muscle” of a fluid-power system; converting mechanical energy to fluid form. There are six basic considerations in evaluating and selecting a hydraulic pump. They include these points: Pressure rating: Based on the limitations of the pump from damage and leakage due to excessive pressure as well as the limitations of downstream components; it is a major consideration in...

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Piston Type Pumps

Starting Up New Pumps and Hydrostatic Transmissions for the First Time For long life and top efficiency, contaminants must be removed from your hydraulic system. Clean (flush) all hoses, fittings, reservoirs and components with clean, high flash point (hard to ignite) solvent. Blow dry with shop air. Fill the reservoir with clean manufacturer ís recommended hydraulic fluid. The inlet suction...

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Overheated Bearings

The most common reason for an overheated pillow block bearing is over-packing it with grease. The churning lubricant produces heat. As speed increases, so does the heat. Adding more grease only worsens the problem, and, you run the risk of blowing out a seal. Excess grease will usually purge through the seals and the bearing will run cooler. In nasty environments (gravel pits, fertilizer...

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Noise

Ever wonder what that noise in your hydraulic system is? Here are a few possibilities to consider: Cavitation. Check the pump for clogged or blocked air vents and intake lines. Follow manufacturer’s recommended viscosity for the pump. Dirty Filter. Periodically check all filters. Also match filter capacity to the pump. Pump is exceeding maximum rpm. System has air in it. Tighten suction...

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