Some contaminants are important to monitor and analyze because they are root causes of premature oil degradation and engine failure. Other contaminants are symptomatic of an active failure condition that requires a response other than just an oil change.

For instance, seal damage leading to fuel dilution or glycol contamination cannot be remedied by performing an oil change or switching to a better quality lubricant. Such symptom-based contaminants are also root causes that enable new failures to occur. The value of oil analysis in detecting problems early goes without saying.

The post Four Lethal Diesel Engine Oil Contaminants appeared first on Tesibis.

Most of us are well aware of the enormous damage water can exact on a machine and its lubricants. However, the magnitude of this potential destruction seems to depend directly on five enabling factors. These factors are listed below and are further diagramed in Figure 1.

The post The Hazards of Water Contamination in Oil appeared first on Tesibis.

Water in a hydraulic system constitutes a serious form of oil contamination. However, water contamination is rarely recognized as such, hardly understood, and, until recently, considered difficult to combat. The damage caused by water is usually attributed to other causes. Water often interacts with other types of contamination. It causes both degradation of the hydraulic oil and damage to the hydraulic components, which reinforce each other. In the past, the filtration of hydraulic oil was solely aimed at removing solid particles. The hydraulic industry has therefore made great progress over the last twenty years in applying and maintaining well-designed filtration of solid particles from hydraulic oil. However, the recent introduction of water-removing filters seems destined to shift the focus in the management of hydraulic oil contamination.

The post Filtering water from hydraulic oil appeared first on Tesibis.

Here is the latest component for hydraulic system filtration and contamination control Water is a very serious contaminant in oil hydraulic systems. Yet, water contamination is rarely identified, poorly understood, and, until recently, considered very difficult to remove. In most cases, the damage done by water is blamed on other factors. Water often works together with other contaminants to produce a combined synergistic degradation of fluid and components.

In the past, hydraulic filtration processes were designed to separate solid contaminants from the hydraulic fluid and, over the last 20 years, the hydraulics industry has made great progress in implementing and maintaining well-conceived solid-contaminant filtration on hydraulic equipment. However, the recent introduction of water-removing filters appears destined to change the focus of fluid power contamination control.

The post Filters can Remove Water from Hydraulic Fluid appeared first on Tesibis.

The majority of wear related failures occur as the direct result of particulate contamination. A recent article published in Lubrication Engineering magazine concludes that more than 82% of wear related losses are contaminant induced. And, the largest portion of this is abrasive wear; the direct result of particles wedged between rolling and sliding surfaces.

According to work done by SKF, bearings can have “infinite life” when the influence of particle contamination is eliminated. In some cases more than a 75-times life extension can be achieved by maintaining exceedingly clean lubricating fluids. It is also worth noting that the penalty associated with a contaminated lubricant is identical to that of using a lubricant with just 25% of the recommended viscosity.

There are few forms of internal machine failure that don’t release particles into the lubricant; detecting increases in particle contamination can be extremely important. Figure 1 lists some of the failure types detectable using contaminant monitoring.

As a predictive maintenance technique, abnormal particle trends are the early symptoms of several non-particle induced conditions. Once the abnormal trends are recognized, a more precise assessment of lubricant condition or machine malfunction can be pursued.

The post Lubricant-Based Techniques for Condition Monitoring of Non-Circulating Gear and Bearing Systems appeared first on Tesibis.

Many lubricants residing in standby equipment have only a few hours of service life. These few hours may be only from occasional scheduled restarts, typically circulating the oil at low load, sometimes barely warming it to operating temperature. In other cases, standby, laid-up and peak-load equipment may sit for weeks or even months without use.

The post Standby Equipment Oil Monitoring and Maintenance appeared first on Tesibis.

Water in a hydraulic system constitutes a very serious form of oil contamination. Technically, water contamination is rarely recognized as such, poorly understood, and, until recently, considered difficult to combat. The damage caused by water is usually attributed to other causes. Water often interacts with other types of contamination. It causes both degradation of the hydraulic oil and damage to the hydraulic components, which reinforce each other. In the past, the filtration of hydraulic oil was solely aimed at removing solid particles. The hydraulic industry has therefore made great progress over the last twenty years in the application and maintenance of well-designed filtration systems for solid particles in hydraulic oil. However, the recent introduction of water-removing filters seems destined to shift the focus in the management of hydraulic oil contamination.

The post Filters can remove the water from hydraulic oil appeared first on Tesibis.

Water in a hydraulic system constitutes a very serious contaminant of the oil. Nevertheless, water contamination itself is rarely recognized, poorly understood, and until recently, considered difficult to combat. Sometimes, the damage caused by water is attributed to other types of contamination. Water often interacts with other contaminants, causing both degradation of the hydraulic oil and damage to the hydraulic components, with these effects reinforcing each other. Until now, hydraulic oil filtration has primarily focused on removing solid particles. The hydraulics industry has made significant progress in the application and maintenance of well-designed solid particle filtration systems over the past twenty years. However, the recent introduction of water-separating filters appears poised to shift the focus of oil contamination control.

The post Filters kunnen het water uit hydraulische olie verwijderen (Filters can remove the water from hydraulic oil) appeared first on Tesibis.