Air and water contamination are detrimentally catastrophic for hydraulic systems,
accounting for approximately 80-90% of hydraulic failures.
In most instances, these types of contamination arise due to system breaches or temperature complications.
Air contamination within Hydraulic Systems comprises two distinct types, namely aeration and cavitation.
Both types of air contamination can have severe consequences,
including the corrosion of hydraulic fluids, system overheating,
and the wearing down of vital components, such as the pump.
Cavitation is a specific form of air contamination that occurs when oil absorbs air.
The air bubbles implode and collapse, causing damage to the hydraulic system.
This destruction and accompanying noise emanation from the hydraulic pump separate cavitation from aeration.
Aeration occurs when outside air enters the pump cavity due to leaks or loose connections,
creating a sound that resembles knocking.
Understanding these types of air contamination is essential
for hydraulic system maintenance as their symptoms can be identified with ease.
Water contamination is another major hazard that affects hydraulic systems.
Typically, system leaks or temperature fluctuations cause water contamination.
Water can have severe consequences on hydraulic components,
causing corrosion and freeze damage over periods of time.
Faulty hydraulic systems can be identified through a milky appearance in the hydraulic fluid.
Fluid levels and quality play a critical role in maintaining high-performance hydraulic systems.
Inadequate filtration and low hydraulic fluid levels can cause air contamination,
making it essential to monitor fluid levels and filtration regularly.
Correctly matching a hydraulic system application with the appropriate hydraulic oil type is also critical.
Certain hydraulic oils are compatible with specific hydraulic system applications
depending on the hydraulic system's operational needs. Some hydraulic oils contain anti-wear,
anti-foaming, and other additives to assist in preventing wear and air contamination.
Overall, hydraulic systems are fundamental to a vast range of functions and industries.
Understanding how to identify hydraulic system issues before they worsen is essential
in ensuring the system is as efficient as possible. Maintaining optimal fluid levels and quality,
conducting regular maintenance and training, and hiring experienced installers are all crucial
to achieving optimal hydraulic system performance.
By following these recommendations, potential hydraulic system failures and associated downtime can be minimized.