With the passage of time and repeated usage, the hydraulic oil within your tools undergoes degradation, resulting in reduced effectiveness. This natural process stems from several factors.
Increased pressure in a hydraulic system leads to greater compression and degradation of the oil. However, the most prevalent cause is contamination. Disregarding warning signs and failing to replace the hydraulic oil can compromise your equipment’s performance, and the oil’s capacity to guard against friction and corrosion will diminish.
Hydraulic oil contamination refers to the presence of impurities or contaminants in the hydraulic oil. These contaminants can have various types and origins. Here are the primary types of hydraulic oil contamination:
Particulate Contamination:
Description: This includes solid particles such as dust, dirt, metal particles, and debris.
Impact: Particulate contamination can cause wear and tear on hydraulic components, leading to premature failure.
Water Contamination:
Description: Water can enter the hydraulic system through leaks, condensation, or improper maintenance practices.
Impact: Water can cause corrosion, rust, and degradation of the hydraulic oil, as well as reduce its lubricating properties.
Air Contamination:
Description: Air can enter the hydraulic system through leaks or during the filling process.
Impact: Air contamination can lead to cavitation, which can damage hydraulic components. It can also reduce the efficiency of the hydraulic system.
Chemical Contamination:
Description: This includes chemicals such as acids, bases, solvents, and other substances that can react with the hydraulic oil.
Impact: Chemical contamination can alter the properties of the hydraulic oil, leading to reduced performance and potential system damage.
Biological Contamination:
Description: Microorganisms such as bacteria, fungi, and algae can grow in hydraulic oil, especially in warm, moist environments.
Impact: Biological contamination can cause sludge formation, odors, and degradation of the hydraulic oil. It can also lead to corrosion and clogging of filters and other components.
Thermal Degradation:
Description: This occurs when the hydraulic oil is exposed to high temperatures for extended periods.
Impact: Thermal degradation can cause the oil to break down, forming varnish and other deposits that can clog filters and damage components.
