Quincy Low Pressure Rotary Screw Compressor QSLP 30

Check that the scavenge line fitting at the bottom of the scavenge line cavity is open and clear

Ensure the scavenge line is not plugged

Check Valve Performance Inspection

Inspect the scavenge line check valve for sticking

Is the check valve stuck in the open position?

Is the check valve stuck in the closed position?

Describe any issues found during inspection

Replace gaskets when removing end castings

Soak gaskets in oil to prevent corrosion and ensure a tight seal

Inspect zinc anodes two weeks after initial startup

Determine future inspection intervals based on corrosion rate

Replace zinc anodes when 70% of the zinc volume is consumed

Drain water chambers to protect from freezing temperatures

Are all indicators showing normal operation?

Is the fluid level within the normal range?

Check if cleaning is required due to any of the following conditions

Clean the orifice without reaming or changing its size

Ensure the orifice is not installed reversed

Scavenger Tube and Line Inspection

Inspect the scavenger tube positioned inside the fluid separator element

Inspect the copper tube connecting to the compressor

For larger models, inspect the following

Is the Differential Pressure Indicator showing a need for replacement?

Is there excessive fluid carryover with normal fluid temperature and level, and proper scavenging system function?

Has it been 4,000 hours since the last replacement?

Has it been one year since the last replacement?

Ensure the compressor is turned off and depressurized before starting the replacement.

Carefully remove the old air/fluid separator element without damaging it.

Inspect the new separator element for any damage before installation.