Vilter Manufacturing Compressor Unit VSS152

Notify VilterTM prior to performing a compressor replacement

Shut down and isolate the compressor unit

Disconnect all cables from sensors on compressor and actuators

Remove bolts securing C-flange to compressor (if equipped)

Verify components of the shaft seal

Remove bolts securing shaft seal housing to compressor

Insert bolts into threaded jacking holes to assist in removing shaft seal housing

Remove mating ring from compressor shaft

Remove oil seal from shaft seal housing

Tap out cup assembly from the back side of shaft seal housing using a brass drift and hammer

Compressor Shaft Bearing Clearance Inspections

Check that all necessary tools and equipment are in place

Ensure force applied does not exceed 300 to 500 lbs at point of contact

Determine maximum applied force

Main Rotor Bearing Axial Clearance Inspection

Install dial indicator to the compressor frame and zero indicator

Record measurement when pushing coupling towards the motor

Record measurement when pushing input shaft towards the compressor

Ensure adequate ventilation and refrigerant vapor detectors are in place as per ASHRAE standards.

Wear rubber gloves and a face shield when working with condensate or oil.

Use appropriate lifting devices and additional personnel for lifting heavy components.

Install lifting eyes on oil separator manhole cover if required.

Secure appropriate lifting device to oil separator manhole cover.

Remove all bolts except top four bolts securing oil separator manhole cover to oil separator vessel.

Check entire system thoroughly for leaks

Grease valve stems and threads for the valve caps

Flush out sediment from water circuits