SULLAIR Industrial Air Compressor SN55S

Before starting the compressor, check the following:

Fluid level in the separator/sump tank

If the fluid level is low, add the necessary amount. If the addition of fluid becomes too frequent, refer to the troubleshooting guide.

After starting the compressor, observe the following:

Controller display monitors the correct readings for their particular phase of operation

After the compressor has warmed up, perform a general check on the overall compressor to assure that it is running properly.

Perform a detailed visual inspection to avoid unnecessary additional damage to the compressor. Check the following:

Warning: This maintenance check requires trained personnel with PPE!

Disconnect the tube at bottom of sight glass

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

Remove used filter assembly, and replace with new assembly

Inspect and clean the orifice inside the sight glass blocks. The orifice must be removed with an allen wrench

Coat/lubricate the O-rings with silicone grease

Reattach the connectors to the sight glass/orifice blocks

Sign off on the oil return/sight glass maintenance

Is the maintenance gauge showing red with the compressor running full load?

Has it been a year since the last maintenance?

If either of the above checks is true, proceed with the following steps.

Clean the air filter’s exterior housing.

Release the hold-down clips and remove the end cover.

Remove the air filter element by pulling it out of the housing.

Clean the housing interior with a damp cloth. Do not blow dirt out with compressed air.

Reassemble in the reverse order.

Warning: High-pressure hazard. Relieve all pressure from the separator/sump tank and all compressor lines.

All pressure relieved from the separator/sump tank and all compressor lines?

Disconnect all piping connected to the separator cover plate.

All piping disconnected from the separator cover plate?

Loosen and remove the twelve (12) hex head capscrews(5⁄8 in × 21⁄2 in) and lock washers from the cover plate.

All capscrews and lock washers removed from the cover plate?

Lift the cover plate from the separator/sump tank.

Cover plate lifted from the separator/sump tank?

Warning: This maintenance check requires trained personnel with PPE!

Replace the fluid filter element

Check air filter. Change if necessary

Sign off on the air compressor maintenance