Ingersoll Rand Air Compressor SSR-ML55

Time of change - when the panel mounted indicator lights up, or annually, when the coolant is changed. Indicator should be observed at full load.

Loosen wing nut on top of inlet filter housing. Lift cover up and away to expose element.

Carefully remove the old element to prevent dirt from entering the inlet valve. Discard old element.

Thoroughly clean the element housing and wipe all surfaces.

Install new element and inspect to insure that it has seated properly.

Install top of inlet filter housing.

Inspect the rubber seal on the retainer wing nut and replace seal if required.

CAUTION! Shut down the compressor, close the service air line isolation valve and open the main electrical disconnect switch. Confirm all air pressure is relieved from receiver.

Is the differential pressure across the element reaches three times the initial pressure drop or a maximum of 15 psi at full load?

Is there a drop to zero differential?

NOTE: A drop to zero differential also indicates a failing or by passing element that must be replaced.

Did you disconnect the scavenge tube at the airend?

Did you loosen the fitting that holds the scavenge tube into the tank and withdraw the tube assembly?

Did you disconnect the piping from the receiver cover?

Did you use a suitable wrench and remove the bolts that hold the tank cover in position?

Did you remove the cover by lifting up and away?

WARNING! Confirm all pressure is relieved from the compressor system and that the main electric disconnect switch is open and tagged to remain open.

Pressure relieved from the compressor system?

Main electric disconnect switch is open and tagged to remain open?

Place a suitable container under the filter housing drain valve which is located near the bottom of the housing.

Container placed under the filter housing drain valve?

Remove the bolt at the bottom of the housing. This will free the housing and element from the filter head. Remove the 'O' ring gasket.

Bolt and 'O' ring gasket removed?

Inspect the element and housing for foreign particles which have been trapped in the element and also for general overall condition - then discard the element and clean the housing.

Element and housing inspected and cleaned?

Warning: This check requires trained personnel!

Condensate trap is draining condensate

If condensate trap is not draining, report the issue to the maintenance team and stop the procedure

Is the aftercooler lowering the discharge air temperature below the dew point?

Under atmospheric conditions of very low humidity, is there no water vapor condensed?

Is there no flow from the condensate trap?

Is an open funnel used in the drain line for easier visual inspection?

Sign off on the water carryover to discharge lines check

WARNING! Confirm all pressure is relieved from the compressor system and that the main electric disconnect switch is open and tagged to remain open.

Pressure relieved from the compressor system?

Main electric disconnect switch is open and tagged to remain open?

Place a suitable container under the filter housing drain valve which is located near the bottom of the housing.

Remove the bolt at the bottom of the housing. This will free the housing and element from the filter head. Remove the 'O' ring gasket.

Bolt at the bottom of the housing removed?

Inspect the element and housing for foreign particles which have been trapped in the element and also for general overall condition - then discard the element and clean the housing.

Element and housing inspected for foreign particles?