Compressor Oil Analysis: Extend Compressor Life and Prevent Downtime
Scheduling an oil analysis for your air compressor will secure the long-term reliability of your rotary screw compressor. Oil analysis serves as “blood work” for your air compressor, providing an early warning against catastrophic failure. JHFOSTER provides expert sampling, analysis and interpretation of results, helping you to keep your compressor healthy and guarding against costly downtime.
What is Oil Analysis?
Oil analysis involves laboratory testing of a small oil sample to determine its condition. Analysis examines viscosity and oxidation and detects the presence of wear metals, such as iron and copper, and contaminants like water and dirt. This helps identify internal issues before they result in a breakdown, maximizing life expectancy of the unit and ensuring long-term performance and productivity.
Tests that may be conducted during an oil analysis include spectrometry to detect wear metals, along with viscosity, acid number/TAN and water content testing.
Key benefits of regular oil analysis include:
- Early fault detection.
- Proof of maintenance for warranty purposes.
- Extension of oil change intervals.
- Determining air compressor oil replacement necessity.
The Sampling Process and Contamination
Below, we address common questions about the oil sampling process.
How is oil sampling done?
To ensure safe collection, the sample must be taken from a flowing, non-stagnant point, halfway through the oil drain or via a dedicated sampling valve while the compressor is running. Each compressor has a distinct method for oil sampling, so be sure to consult your manual for the proper technique.
How much oil is needed for an oil sample?
Using a lab-provided kit, about 4 to 8 ounces of oil should be taken for the sample. Following directions on the kit is critical for accurate results and will ensure you receive a copy of the report.
How to check oil in an air compressor?
Air compressor oil can be visually examined via the sight glass or using a dipstick, per the manual’s instructions; however, only lab analysis will reveal the telltale signs of degradation, contamination or internal wear.
What are the common causes of contamination in a compressor?
Water caused by humidity and condensation, airborne particulates such as dirt and dust, metal wear particles, chemical gases ingested into the compressor inlet and improper oil mixing are all common causes of contamination. Properly maintained compressor inlet filters will protect from airborne particulates. Routine maintenance such as replacing oil filters can prevent metal wear particles from entering the system. A remote intake may be required to prevent harsh chemical gases from being ingested and making sure the compressor reaches proper operating temperatures will reduce water condensation build up.
Warranty, Requirements and JHFOSTER Expertise
While oil sampling is not required for operation, it is highly recommended to ensure a long service life for your compressor. Remember, oil analysis is like a check up for your compressor – it can reveal hidden issues, allowing you to address problems before catastrophic failure.
However, oil sampling is likely necessary to maintain the warranty of your air compressor. For most premium industrial rotary screw air compressors, scheduled oil sampling is a mandatory requirement for keeping the full manufacturer’s warranty valid, especially when extending oil change intervals.
JHFOSTER’s service team uses professional, consistent methods to ensure warranty compliance and accurate results.
Your Compressed Air Partner
Our compressed air equipment service technicians are experts when it comes to oil and maintenance requirements needed to maximize your asset’s lifespan and reliability
At JHFOSTER, we provide the necessary expertise to evaluate your demand and ensure you invest in the right air compressor technology. Don’t allow cost to become the deciding factor – it may compromise your long-term productivity..
Contact us today to speak with a compressed air expert about upgrading to a more efficient system. We can help quantify your current air needs and determine the best compressor size and technology to meet your current and future requirements.
