Sullair Industrial Air Compressor SN55

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

Disconnect all piping connected to 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.

Lift the cover plate from the separator/sump tank.

Scrape any old gasket material from the underside of the cover plate and the separator/sump tank flange.

Inspect the separator/sump tank for rust, dirt, etc.

Insert a new separator element into the separator/sump tank taking care not to dent the element against the tank opening.

Replace the cover plate, lock washers and capscrews. Torque to140 ft·lbs. (190 N·m).

Replace your fluid filter element under any of the following conditions, whichever occurs first:

• As indicated by the STS Controller.

1) Fluid filter element replacement

1. Using a wrench, remove the filter canister.

2. Remove and dispose of filter element. Observe all laws and regulations for filter disposal.

3. Clean gasket seating surface.

4. Apply a light film of fluid to the element seal.

5. Install the element into the filter canister.

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: 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

Drain the separator/sump tank and change the compressor fluid using instructions shown below:

Lubricant:; Sullube® (7.2 gal / 27.3 L): Fluid change - E, Fluid filter change - G, C, Separator change - I, D

PristineFGTM (7.2 gal / 27.3 L): Fluid change - H, E, Fluid filter change - G, C, Separator change - B, D

B—4,000 hours or more frequently if conditions so require.

C—When measured pressure loss exceeds 20 psig (1.3 bar).

D—When measured pressure loss exceeds 10 psig (0.7 bar).

E—When required by fluid analysis or known contamination.

F—Does not require replacement during normal service conditions.