
ADVANTAGE®PLUS Annual Preventive
Maintenance Instructions
50097-003 Rev. A Page 7 of 12
Air Compressor
Note: Skip this step if the Advantage unit being serviced does not use the air compressor.
Unplug the power from the compressor. Vent the air tank by pulling the pressure relief ring located
underneath the pressure switch.
Air Intake Filters
1. Remove the two air filters located on the top of the compressor by unscrewing
counter clockwise. Discard the old filters and install the two new filters.
5µm Filter
2. Unscrew the lower housing of the 5µm filter.
3. Remove the old filter by unscrewing it and replace with the new filter.
4. Replace the housing o-ring with the supplied o-ring and lubricate with silicone oil.
5. Replace the lower housing, hand tighten only.
Check Valve
1. Locate the check valve assembly underneath the pressure switch.
2. Remove the two braided stainless steel hoses from the end of the check valve by
loosening the two fittings.
3. Unscrew the check valve housing, the base of the housing will stay on the air tank.
4. Carefully remove the housing noting the order of the internal parts.
5. Clean and inspect the inside of the housing.
6. Disassemble the new check valve and replace the internal parts of the old check
valve with the internal parts of the new check valve. Ensure all pieced go back in
the proper order.
7. Reattach the check valve housing to the air tank.
8. Reattach the two braided stainless steel tubing.
Note: When the compressor is repowered check for leaks.
Note: The kit includes a 0.1µm filter kit which is only used on the older style compressor. The
filter replacement procedure is the same as the 5µm filter noted above.