Vilter Manufacturing Compressor VSG 361

Gate Rotor Roller Bearing Removal

Refer to section REMOVAL (All VSG) for removal of components

Remove the snap ring (131) retaining the roller bearing in the bearing housing

Remove the roller bearing (125) from the bearing housing (112)

Use a bearing puller to remove the roller bearing race (125) from the gate rotor support (110)

Gate Rotor Roller Bearing Installation

Match part numbers on the inner race to the outer race and press the bearing race onto the gate rotor support

Install the outer bearing into the bearing housing ensuring numbers match the inner race

Install the snap ring retainer in the housing with the bevel facing away from the roller bearing

Prepare the compressor for servicing as outlined in section REMOVAL (All VSG).

Remove bolts holding the shaft seal cover and use jacking holes to assist in removing the cover.

Remove the rotating portion of the shaft seal.

Remove the stationary portion of the shaft seal using a brass drift and hammer.

Install the carbon cartridge part of the seal in the seal cover, ensuring proper alignment and lubrication.

Gate Rotor Thrust Bearing Removal

Remove gate rotor bearing housing

Removal of Thrust Bearings on VSG Units

Remove bolts from the clamping ring

Remove thrust bearing clamping ring

Remove thrust bearings from housing

Removal of Thrust Bearings on VSSG Units

Remove retaining ring from gate rotor support

Prepare the compressor for servicing.

Follow the appropriate instructions to remove control actuator.

Remove components securing mounting plate to manifold

Remove the command shaft and mounting plate from the compressor.

Command Shaft Assembly Installation

Install the command shaft assembly with a new o-ring (446) on the manifold.

Ensure the command shaft tongue is engaged in the cross shaft slot.

Rotate the bearing housing so the vent holes point down.

Remove the snap ring and washer from the gate rotor assembly

Lift gate rotor blade assembly off the gate rotor support

Check damper pin and bushing for excessive wear

Replace damper pin and bushing if necessary

Install damper pin bushing in gate rotor blade from the back side of the blade

Ensure the bushing is fully seated