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VSG/VSSG • Installation, Operation and Maintenance Manual •Vilter/Emerson • 35391SSG
NOTE
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).
NOTE
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.
Section 5 • Maintenance/Service
901C
90 1B
90 1A
Figure 5-17. Gate Rotor Assembly Removal
and Tools
Figure 5-18. Gate Rotor Assembly Removal
Use fl ats provided on
gate rotor support to
prevent rotation when
removing bearing
retainer.
For VSSG 291-601
compressors, do not
use side rails.
For VSG 751/901 and
1051-1301compressors, use
side rails and assemble gate
rotor stabilizer as stamped.
Position leading edge of main rotor groove
fl ush with or slightly below back of gate
rotor support.