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What Causes A Hydraulic System Failure?

Hydraulic systems of all shapes and sizes can fail. This may not happen very often, however most of the reasons for these failures can be prevented with the right care and checks.There are four main reasons for hydraulic system failures. General AbrasionIf the hose assemblies are not installed in a way that minimises contact with other components in the system, then this can lead to the hose rubbing against other hoses or mechanical components. Excess abrasion will occur as a result and cause premature hose failure, meaning the whole system fails.By ensuring that the hose assemblies and other components are fitted properly this should prevent abrasion leading to failure. Heat-AgingWhen a hose over heats this can cause a thermal expansion. This expansion can cause premature aging of elastomers (a natural or synthetic polymer that has elastic properties) and plastics within the material that makes up the internal hose tube. As this condition appears it can lead to a decreased elongation of the molecular structure of the material and can contribute to an increased brittleness. Eventually this leads to failure.To prevent over heating check the level of fluid in the reservoir is not low and ensure that that there are no obstructions in the surrounding airflow around the reservoir. Heat needs to be able to escape and if the cooling circuit is not working properly then it will over-heat. Leading to failure. Incorrect Insertion Depth By not assembling the hoses into the hydraulics system correctly not only will the system have been put together incorrectly, but should you try to use the system it will likely fail. The most common assembly mistake is not inserting the fittings to the correct depths within the hose. By not fitting components correctly this can cause failure to the system when used, because these ill-fitted components will detach creating a system failure.By using hose insertion depth blocks to prevent the hose and its fittings from over-extending, enable a safe a secure hydraulics system. Hydraulic Fluid ContaminationThe leading cause of hydraulic system failures is fluid contamination. If the fluids are contaminated this can result in degrading fluid, in turn reducing the valves ability to control pressures. This lack of control on pressures can lead to over heating as the system is no-longer able to regulate itself. Not only can contamination lead to excess heat, it can lead to build ups of silt in the system causing the parts to seize and fail.Ensuring that components and fluids are clean and correct before using the hydraulic system can prevent a potential system failure. This can be done by thoroughly cleaning the hydraulic component, free of any potential contamination and then making sure that it is completely dry before use, moisture is a contaminant too. We pride ourselves on customer service, so you can get in touch with us to purchase your hydraulic components and systems, knowing that you are in safe hands. If you have any questions or queries regarding any of the information we have provided or would like to know more about hydraulics, please get on contact with us via our online form or call 01584 876033 today. 

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