Emerson VSM, VSR, VSS Service, Command Shaft Assembly Removal, Command Shaft Assembly Installation

Service

COMMAND SHAFT ASSEMBLY REMOVAL

The following steps can be used to remove or install either the capacity or volume command shaft as- semblies.

A)Prepare the compressor for servicing.

B)Follow the appropriate instructions to remove control actuator.

C)Remove four socket head cap screws (457) and Nord-Lock washers (477) securing mounting plate (415) to manifold.

D)The command shaft and mounting plate may now be removed from the compressor.

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B)Install the actuator mounting plate with the four socket head cap screws and Nord-Lock washers securing it with proper torque.

C)The unit can now be leak checked.

COMMAND SHAFT BEARING AND O-RING SEAL REPLACEMENT

A)Remove command shaft assembly.

B)Remove snap ring retainer (451) from command shaft housing (412). Push the command shaft as- sembly out of the housing.

COMMAND SHAFT ASSEMBLY INSTALLATION

A)Install the command shaft assembly with a new o-ring (446) on the manifold. Make sure that the command shaft tongue is engaged in the cross shaft slot. Rotate the bearing housing so the vent holes point down, this will prevent water and dust from entering the vents.

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