Air Compressor Oil Filter Maintenance Guide
Introduction
As simple as it may seem, oil filters do some pretty heavy lifting when it comes to protecting your compressor. A clean filter keeps contaminants out of your oil, extends the life of your machine, and helps avoid expensive downtime. Think of it as one of the cheapest forms of insurance for your compressor.
How Oil Filters Work
An oil filter forces compressor oil through filter media designed to trap dirt, dust, and metal particles. Clean oil then circulates back through your machine to lubricate and cool the system. When the filter becomes clogged or overloaded, oil can bypass the filter, leaving your compressor exposed to wear and damage.
- Signs of a bad oil filter: pressure loss, higher operating temps, or oil bypass alarms.
Recommended Maintenance Intervals
Changing oil filters at the right time keeps your compressor running smoothly. Here’s a quick guide:
- Stationary Rotary Compressors: Replace every 2,000 hours.
- Portable Rotary Compressors: Replace every 2,000 hours.
- Air-Cooled Reciprocating Compressors: Replace every quarter or every 6 months, depending on usage.
Pro tip: Inspect filters more frequently if your compressor operates in dusty or dirty environments.
Step-by-Step: How to Change an Oil Filter
- Shut down and depressurize the compressor. Always follow lockout/tagout procedures.
- Remove the old filter and discard it properly.
- Clean the sealing surface where the new filter will sit.
- Apply a light coat of oil to the gasket on the new filter.
- Install the new filter and tighten according to the manufacturer’s spec.
- Restart the machine and check for leaks around the filter housing.
Troubleshooting Common Issues
- Filter clogs too quickly: The environment may be too dirty, or oil quality may be poor.
- Oil is bypassing the filter: This could be the wrong filter type or a severely overdue change.
- Leaks around the filter: Gasket not seated correctly or filter over-tightened.
Choosing the Right Oil Filter
Not all filters are created equal. The best protection comes from choosing a filter that matches your compressor’s specifications. Using the wrong filter can lead to leaks, premature clogging, or even major machine damage.
If you have your OEM part number, you can search our website or the ACS Go app to find the correct replacement. Not sure what you need? That’s where ACS comes in! We verify compatibility before shipping, so you can order with confidence.
Why Choose ACS?
- High-quality replacement filters designed to match OEM performance.
- Thousands of parts in stock and ready to ship fast.
- Expert knowledge of compressors from Inlet to Outlet™.
- USA-based team focused on keeping your plant running.