Ingersoll Rand UP6: Air/Oil Separator Maintenance Guide

stationaryGreg Aiken
Ingersoll Rand UP6: Air/Oil Separator Maintenance Guide

Ingersoll Rand UP6: How to Maintain the Air/Oil Separator

The air/oil separator in your Ingersoll Rand UP6 is critical to compressor performance. It prevents excessive oil carryover into your air system, helps minimize oil consumption, and maintains system pressure. Regular maintenance of the separator element is essential to avoid costly downtime and damage. Here’s how to do it right.

1. What the air/oil separator does

The separator element captures oil mist from the compressed air before discharge, returning the oil to the sump. A clean, functioning separator ensures clean air delivery and efficient oil use.

2. Signs your separator needs attention

Watch for these indicators that it’s time to inspect or replace your separator:

  • Increased oil consumption or oil found in downstream equipment
  • Higher than normal pressure drop across the separator
  • Elevated discharge air temperature
  • Visible oil leaks around the separator housing

3. Recommended replacement intervals

For most UP6 units, replace the air/oil separator every 4,000 hours or annually, whichever comes first. In harsh or dusty environments, consider more frequent replacement.

4. Step-by-step separator maintenance

  • Depressurize and drain: Shut down the compressor, relieve all internal pressure, and drain oil from the separator vessel.
  • Remove the old element: Open the separator housing carefully. Remove the old separator element without introducing debris into the vessel.
  • Check and clean scavenge line: Inspect the scavenge line for blockages. A clogged line prevents proper oil return and can cause oil carryover. Clean or replace as needed.
  • Install the new separator: Use the correct separator for your model: Ensure gaskets and seals are positioned correctly to avoid leaks.
  • Reassemble and refill: Reinstall all components. Refill oil as needed and check the oil level using the sight glass.
  • Run and check: Start the compressor, check for leaks, and confirm normal pressure and temperature readings.

5. Don’t forget the other key filters

While you’re servicing your separator, it’s smart to replace your air and oil filters too — they work together to protect your system. Match your part number to your model:

Disclaimer: The information provided in this blog is intended for general troubleshooting guidance only and may not cover every situation or machine configuration. Always refer to your specific equipment’s manual and follow the manufacturer’s safety instructions. If you are unsure or uncomfortable performing any maintenance or repairs, consult a qualified technician. Air Compressor Services is not responsible for any injuries, damages, or losses resulting from the use of this information.