Sullair Industrial Air Compressor 5509 AC

The fluid return/sight glass subassembly is located on the side of the separator tank.

Fluid return/sight glass maintenance should be performed along with that of the fluid filter.

Fluid return/sight glass issues usually result from the condition of the filter assembly.

Order filter assembly No. 02250117-782, and use the following instructions as a guide:

Disconnect the tube at the bottom of the sight glass.

Unscrew the sight glass assembly where the elbow fitting joins the strainer/filter.

Remove the used filter assembly and replace it with the new assembly.

Inspect and clean the orifice inside the sight glass blocks. Remove the orifice with an Allen wrench.

Coat/lubricate the O-rings with silicone grease.

Warning: This procedure requires trained personnel with PPE!

Start the compressor and adjust the service valve to maintain service air pressure at approximately 1 psi over its rated pressure.

Turn the inlet valve regulator adjusting screw until air just begins to escape from the control air orifice, located at the bottom of the regulator.

Lock the adjusting screw in place with the locknut.

The regulator is now properly set.

Sign off on the pressure regulator adjustment

Warning: Always ensure the compressor is turned off and fully depressurized before starting maintenance.

Is the compressor fitted with the standard solenoid condensate drain valve?

If the compressor is not fitted with the standard solenoid condensate drain valve, stop the procedure and report to the maintenance team.

Remove the knurled cap from the strainer.

If the screen is damaged, the strainer assembly must be replaced (P/N 02250171-245).

Display on the WS Controller indicates the need for replacement

FLUID FILTER ELEMENT REPLACEMENT

Use a wrench to remove the filter canister

Remove and dispose of the filter element properly

NOTE: Dispose of fluids in accordance with applicable federal, state, and local regulations.

Clean the gasket seating surface

Apply a light film of fluid to the element seal

Warning: This procedure requires trained personnel with PPE!

Enter the machine's hour meter reading

Enter the date of the last hose replacement

If machine is air-cooled, order hose kit 02250171-102. If machine is water-cooled, order hose kit 02250171-103.

Sign off on the hose replacement