Sullair Industrial Air Compressor 5510/A

Warning: Relieve all pressure from the receiver tank and all compressor lines before starting.

Pressure relieved from the receiver tank and all compressor lines?

Loosen and remove the eight (8) hex head capscrews (M12 x 40mm) from the cover plate.

Lift the cover plate from the receiver tank.

Inspect the receiver tank for rust, contamination, or damage.

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: Only trained personnel should perform this procedure.

Did you adjust the service valve to maintain service air pressure at approximately 1 psi over its rated pressure?

Did you 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?

Did you lock the adjusting screw in place with the locknut?

Sign off on the pressure regulator adjustment

CAUTION: Do not mix different types of lubricants. Mixing lubricants can cause malfunctions or compressor damage and will void the compressor’s warranty.

CAUTION: Contamination of compressor fluids with mineral oil or other fluids can cause foaming, filter plugging, or orifice line obstruction.

Sullair encourages its customers to participate in a fluid analysis program with the fluid suppliers. In some cases, the analysis results suggest a fluid change interval that differs from the User Manual. Contact a Sullair representative for details.

When performing a fluid change or topping off the fill, the proper level should be at half of the sight glass, with the machine off.

Mixing, changing, or adding other lubricants within the compressor unit may void the air-end warranty.

Change the compressor fluid using instructions shown in the Lubrication Guide.

Refer to Figure 3-1 for the fluid fill port location.

Sullair’s 4500P-7500 series compressors are filled and tested at the factory with Sullube lubricant.

Warning: Ensure the compressor is turned off and cooled down before performing any maintenance tasks.

Is the compressor turned off and cooled down?

Clean the return line strainer.

Refer to Maintenance Every 2000 Hours for location.

Sign off on the initial 50 hours compressor maintenance