Emerson VSSG, VSG Gate Rotor Disassembly, 25. Gate Rotor Blade Installation, Maintenance/Service

Section 5 • Maintenance/Service

Gate Rotor Disassembly

1.To perform gate rotor disassembly, remove gate rotor from compressor, see Gate Rotor Assembly Replacement procedure (All VSG-VSSG Compressors Except VSG 301-701 Compressors) or Gate Rotor Assembly procedure (VSG 301-701 Compressors ONLY).

GATE ROTOR BLADE REMOVAL

2.Remove the snap ring and washer from the gate ro- tor assembly. Lift gate rotor blade assembly off the gate rotor support, see Figure 5-24.

3.Check damper pin and bushing for excessive wear. Replace if required.

GATE ROTOR BLADE INSTALLATION

4.Install damper pin bushing (120) in gate rotor blade (111) from the back side of the blade. Be sure bush- ing is fully seated.

5.Place blade assembly on gate rotor support. Locating damper over pin.

6.Install washer (119) and snap ring (130) on gate ro- tor assembly. The bevel on the snap ring must face away from the gate rotor blade. After the gate rotor blade and support are assembled, there should be a small amount of rotational movement between the gate rotor and support.

Figure 5-25. Gate Rotor Blade Installation

Figure 5-24. Gate Rotor Blade Assembly

5 – 26 VSG/VSSG • Installation, Operation and Maintenance Manual •Vilter/Emerson • 35391SSG