Emerson VSG, VSSG manual 19. Gate Rotor Assembly and Tools, 20. Gate Rotor and Shelf Clearance

Section 5 • Maintenance/Service

23. Check the clearance between the entire gate rotor blade and the shelf, rotate the gate rotor to find the tightest spot. It should be between 0.003-0.004“ (0.076-0.102 mm). Make adjustments, if neces- sary. It is preferable to shim the gate rotor blade looser rather than tighter against the shelf, see Figure 5-20.

24. After clearance has been set install a new O-ring (143) on bearing housing cover, install cover and tighten the bolts to the recommended torque value.

25. Install side cover with a new gasket. Tighten the bolts to the recommended torque value. The unit can then be evacuated and leak checked.

Check for 0.003-0.004” (0.076- 0.102 mm) clearance between

gate rotor blade and partition.

Figure 5-19. Gate Rotor Assembly and Tools	Figure 5-20. Gate Rotor and Shelf Clearance
VSG/VSSG • Installation, Operation and Maintenance Manual •Vilter/Emerson • 35391SSG		5 – 23