76
Service
3.00
INSPECTION OF SLIDE VALVE
ASSEMBLIES IN THE
COMPRESSOR
Prepare the compressor for servicing as outlined
in section 0.01.
A) Remove the gate rotor access covers. Using
a mirror and flashlight, visually inspect the
slide valve carriage through the gas bypass
opening. Look for any significant signs of
wear on the slide valve carriage.
B) To check the clearance of the slide valve
clamps, the gate rotor support must be re-
moved. Refer to section 1.00 for removal of
the gate rotor support.
C) Using a feeler gauge, inspect the clearance
between capacity and volume slide valve
clamps and slide valve carriage through the
gas bypass opening. The clearance should
be less than 0.002”.
D) If the slide valves are worn in excess of the
tolerances, the factory should be contacted.
3.10
REMOVAL SLIDE VALVE
CARRIAGE ASSEMBLIES
A) Prepare the compressor for servicing as out-
lined in section 0.01.
B) If only one of the slide valve carriages is re-
moved only the corresponding gate rotor sup-
port needs to be removed. If both carriages
are removed both gate rotors must be re-
moved. Remove the gate rotor assemblies
as outlined in section 1.01.
C) Remove the capacity and volume actuators
as outlined in section 4.01. Remove the dis-
charge manifold, capacity and volume cross
Check for wear in these areas.
Feeler gauge
Measure here
Check for excessive wear in these
areas.
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...