Emerson VSG & VSSG Spécifications télécharger pdf (Page 58)

INSPECTION OF SLIDE VALVE ASSEMBLIES IN

THE COMPRESSOR

Prepare the compressor for servicing.

A) Remove the gate rotor access covers. Using a

mirror and ashlight, visually inspect the slide

valve carriage through the gas bypass opening.

Look for any signicant 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.

Service

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Emerson VSG & VSSG Spécifications Page 58