Vilter Manufacturing Compressor Unit VSS182

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

Remove center member as per Drive Coupling Replacement procedure

Install and zero dial indicator on compressor frame

Record measurement after pushing coupling towards motor

Record measurement after pushing input shaft towards compressor

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

Wear rubber gloves and a face shield to avoid skin contact with condensate or oil.

Use appropriate lifting devices and ensure they are capable of lifting the weight of the component.

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.

Follow manufacturer’s instructions on lubrication

Check calibration and operation of all controls

Check calibration and operation of safety controls

Check oil cooler for evidence of corrosion

Ensure safety precautions are followed

Turn disconnect switches to the OFF position for the compressor unit and oil pump motor starter

Allow compressor, motor and surrounding components to cool

Disconnect connectors from actuator

Remove E-clips, Locking Retainers, Grooved Bolts and Washes

Remove actuator assembly from actuator mount

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.