Emerson VSS, VSR, VSM service manual Service, Inspection Of Slide Valve Assemblies In The Compressor

Service

INSPECTION OF SLIDE VALVE ASSEMBLIES IN THE COMPRESSOR

Prepare the compressor for servicing.

A)Remove the gate rotor access covers. Using a mirror and flashlight, visually inspect the slide valve carriage through the gas bypass opening. Look for any significant signs of wear on the slide valve carriage.

B)To check the clearance of the slide valve clamps, the gate rotor support must be removed. Refer to removal of the gate rotor support.

C)Using a feeler gauge, inspect the clearance be- tween capacity and volume slide valve clamps and slide valve carriage through the gas bypass opening. The clearance should be less than 0.002”.

D)If the slide valves are worn in excess of the toler- ances, the factory should be contacted.

REMOVAL SLIDE VALVE CARRIAGE ASSEM- BLIES

A)Prepare the compressor for servicing.

B)If only one of the slide valve carriages is removed only the corresponding gate rotor support needs to be removed. If both carriages are removed both gate rotors must be removed. Remove the gate rotor assemblies.

C)Remove the capacity and volume actuators. Remove the discharge manifold, capacity and volume cross shafts and the slide valve racks.

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