A major cause of equipment failure can be attributed to improperly functioning cooling systems, yet they can be the most overlooked component in equipment. Cooling systems have a direct impact on the efficient operation and service life of a compartment. However, poor cooling system maintenance is quite common.
Demands on cooling systems in current engine designs are greater than ever. Beefed-up turbochargers, charged air coolers, EGR and other emission reducing equipment, electronically timed fuel injection, and computerized combustion controls–all place higher thermal demands on the cooling system. Engine design changes have a significant impact on coolant and coolant formulations. Ethylene glycol is hydrocarbon based and, as such, will oxidize when exposed to high temperatures–just like the lubricating oil in the engine. It “breaks down” and forms acidic byproducts. Additives, such as nitrites (used to inhibit corrosion of cast iron and liner pitting due to cavitation), will oxidize and be reduced to nitrates and lose their effectiveness. The higher temperatures also enhance the formation of scale, from use of improper water in the original charge or as make-up.
Extended life coolants contain organic acid inhibitors that require monitoring. Because of chemistry changes, the problems created by mixing coolant types is more prevalent with today’s formulation.
Though new formulations are designed to perform in smaller cooling systems operating in hotter environments, monitoring the fluid in service has become more important.
ALS provides routine trending analysis that monitors the health of the fluid in service and the cooling system itself. Laboratory testing can tell you about hidden problems before a failure occurs. Our services are cost-effective and are meant to complement your other maintenance practices.
Our coolant report includes diagnostic statements that further explain the analytical results and the overall state of the fluid and system. Reports are provided in several formats, including electronic, showing historical trends of previous results. Coolant testing availability includes:
- Basic conventional and extended life coolant test packages
- Corrosion, contaminants, and additive levels
- Analysis of anions
- Extended life coolant organic acid additive concentrations