Gardner Denver Screw Air Compressor ECHSJDF

Disconnect oil return to compressor tubing at tee near discharge manifold flange on top plate.

Disconnect tubing from tee on top plate to top of discharge manifold at the tee. Loosen nut on fitting at top of manifold and completely withdraw the tubing through the fitting. Loosen nut on fitting on top plate and completely withdraw the tubing through the fitting.

Disconnect all other tubing from discharge manifold.

Disconnect discharge manifold pipe union.

Remove screws holding the top plate to the oil reservoir tower. Lift top plate and the attached second-stage separator from the oil reservoir tower.

Invert top plate and second-stage separator. DO NOT REST THE ASSEMBLY ON THE SEPARATOR. Remove cap screws and washers holding second-stage separator and lift the separator from the top plate.

Lift the first-stage separator from the oil reservoir tower.

Stop unit and ensure no air pressure is in the oil reservoir

Wipe away all dirt before removing the oil filler plug

Select the method for draining the oil system

Is the drained oil and/or oil filter element contaminated with dirt?

Flush the entire system reservoir, oil cooler, mixing valve, and lines if contaminated

Inspect the filter element for damage

Place a bright light inside the element to check for any visible damage

Measure the pressure drop through the filter with a freshly cleaned element

Is the pressure drop below three (3) inches of water with the compressor running at full load?

Enter the number of times the element has been cleaned

Should the filter element be replaced?

Check if the outside surface of the air filter element is evenly coated with dirt.

Remove the wing bolt and lift off the top and filter element.

Vibrate or blow heavy dirt accumulations from the element.

Direct air blast at a slight inward angle and parallel to element pleats.

Is washing of the element required?

Wash element with a nonsudsing household detergent and water.

Disconnect the unit from the power supply

Remove the relief plug and free the hole of hardened grease

Wipe the lubrication fitting clean

Add grease with a hand-operated grease gun

Leave the relief plug temporarily off