Emerson VILTER VSS Installation, Operation And Service Manual page 76

Section 5 • Maintenance/Service
This will push the thrust bearings onto the shaft
and push the housing assembly into the frame.
Install the inner retainer (115) and bolts (151) us-
ing Loctite® 242 thread locker. Tighten bolts, see
Appendix A.
19. Set clearance between gaterotor blade and shelf.
20. Place a piece of 0.003"-0.004" shim stock between
gaterotor blade and shelf.
This measurement determines the amount of shims
needed for the correct clearance.
21. Measure depth from top of compressor case to top
of thrust bearing housing.
22. Use factory installed shim pack (106) and bearing
housing cover (116) without the O-ring (143).
Replacement blades are precisely the same
dimensionally as blades installed originally at
factory: Therefore, the same amount of shims will
be required for replacement blades.
5 – 22
VSS/VSR/VSM/VSH/VSSH Compressor • Installation, Operation and Service Manual • Emerson • 35391S
NOTE
NOTE
Figure 5-22. Gaterotor Assembly Removal
Use flats provided on
gaterotor support to
prevent rotation when
removing bearing
retainer.