Gardner Denver Screw Air Compressor ECHSJDH

Inspect for rupture, crack, or pin hole using a bright light inside the element.

Measure the pressure drop through the filter with a freshly cleaned element while the compressor is running at full load.

Is the pressure drop below three (3) inches of water?

Enter the number of times the element has been cleaned.

Has the element been cleaned six (6) times or more?

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 the oil filter element contaminated with dirt?

Flush the entire system reservoir, oil cooler, mixing valve, and lines if contamination is present

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

Observe if the unit loads and unloads properly

Drain the moisture trap in the control system

Check for moisture in the oil level gauge

Drain accumulated moisture if noted

Report moisture in the oil system

Record the pressure drop through the filter

Is the pressure drop 20 inches of water or more?

Is there higher than normal current use by the motor?

Is there a loss of compressor delivery?

Loosen the retaining band clamp

Remove the dust cup from the body of the filter

Visually inspect the element in place. Is cleaning necessary?