Ingersoll Rand Rotary Screw Air Compressor R4i-145 TAS

Replace Premium Coolant (Ultra)

Replace Minimum pressure check valve (MPCV)

Condensate Drain Lines Inspection

Check Condensate drain lines for any issues

Were the Condensate drain lines replaced?

Inspect Starter box power drive element (PDM) filter element (if applicable)

Inspect and test pressure relief valve

Inspect Airend/Pressure System/Receiver

Check High Airend Temperature Sensor

Inspect external surfaces of the airend for damage, corrosion, and abrasions

Inspect Scavenge Tubes/Orifice and Blowdown System

Stop the machine, electrically isolate and vent all trapped pressure.

Disconnect the scavenge line tubing and unscrew from integrated separator/MPCV manifold.

Inspect orifice and tubing for clogging and clean prior to re-installation.

Is there any scaling or O-ring damage identified?

Confirm the direction of flow is correct by observing the small arrow stamped in the center section.

Remove inlet filter to expose inlet snout for blowdown diverter orifice examination.

Disconnect Synflex tubing from the elbow fitting at bottom of inlet valve.

Inspect/clean spool and all orifice features of blowdown fitting.

Isolate the compressor from the system

Press the emergency stop to vent the separator tank and airend

Ensure the main power disconnect switch is locked off and tagged

Use certified lifting equipment for any required lifting of air compressor parts

Remain aware of nip points, pinch points and other associated hazards

Remove the outer belt guard from the airend support

Loosen the four motor support plate bolts

Isolate the compressor from the system

Press the emergency stop to vent the separator tank and airend

Ensure the main power disconnect switch is locked off and tagged

Disconnect aftercooler discharge tube or hose

Remove top assembly by removing eight bolts while supporting assembly properly