67
Service
D) Set the clearance between the gate rotor blade
and the shelf.
1.
Place a piece of 0.003”-0.004” shim
stock between the gate rotor blade and
the shelf.
2.
Measure the depth from the top of the
compressor case to the top of the thrust
bearing housing. This determines the
amount of shims needed for the correct
clearance.
3.
Use factory installed shim pack (106)
and bearing housing cover (116) with-
out the O-ring (143). Check the clear-
ance 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”. Make adjustments, if
necessary. It is preferable to shim the
gate rotor blade looser rather than tighter
against the shelf.
Note: Replacement blades are precisely the
same dimensionally as blades installed
originally at factory: Therefore, the same
amount of shims will be required for replace-
ment blades.
E) After clearance has been set install a new O-
ring (143) on bearing housing cover, install
cover and tighten the bolts to the recom-
mended torque value.
F)
Install side cover with a new gasket. Tighten
the bolts to the recommended torque value.
The unit can then be evacuated and leak
checked as outlined in section 0.03.
Summary of Contents for VSM 71-701
Page 1: ...1 VPN 35391S February 2006 Rev 05 Price 60 00...
Page 2: ...2...
Page 20: ...20...
Page 52: ...53 Pre Start Up Check List...
Page 99: ...99 Recommended Spare Parts List...
Page 104: ...104 Gate Rotor...
Page 110: ...110 Main Rotor VSS...
Page 112: ...112 Main Rotor VSR...
Page 114: ...114 Slide Valve Cross Shafts and End Plate...
Page 118: ...118 Capacity Slide Volume Slide Carriage Assembly Slide Valve Carriage Assembly...
Page 134: ...134 Miscellaneous Frame Components VSS Screw Compressor VSR Mini Screw Compressor...
Page 138: ...138 C FlangeAdapter Components 630 620 610 640 601 641 630 601 620 610 640 641 642 650 651...
Page 140: ...140 Replacement Parts Tools...
Page 144: ...144 GaterotorAssembly...
Page 148: ...148 Main Rotor Slide Valve Cross Shafts and End Plate Models 71 401 Only Counter clockwise...
Page 152: ...152 Main Rotor Slide Valve Cross Shafts and End Plate Model 501 701 Only Clockwise...
Page 154: ...154 Volume Ratio Capacity Slide Carriage Assembly Slide Valve Carriage Assembly...
Page 158: ...158 Miscellaneous Frame Components Model VSM 501 701 Model VSM 71 401...
Page 160: ...160 Replacement Parts Accessories Housing Accessories C Flange Assembly...
Page 166: ...166 Haight Pumps...
Page 170: ...3 Refrigerating Specialties Division...
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Page 244: ...168...