84
Service
VSS compressors cross shafts.
228 269 268
222
222
221
228
268
269
VSR compressors cross shafts.
Volume control cross shaft.
221
234
222
269
268
268
269
Capacity control cross shaft.
222
268
269
228 221
228
269
268
D) Drive the roll pins from pinion gear from one
side. Remove pinion gear. Slide the cross
shaft with the remaining pinion gear or spac-
ers out of the opposite side. Repeat the pro-
cedure for the remaining cross shaft.
4.13
INSTALLATION OF CAPACITY
OR VOLUME CROSS SHAFTS
A) To reassemble either set of capacity or vol-
ume ratio slide valve racks, install the cross
shaft with the pinion gear onto the back plate,
place the remaining pinion gear on the shaft
and drive in the roll pins. Install clamps,
spacers and bolts on both sides. Tighten the
bolts to the recommended torque values.
B) The slide valve sets must be synchronized
on VSS and dual gate VSM units. Both slide
valve racks for either the volume ratio or
capacity slide valves must engage the cross
shaft gears at the same time. Push the racks
all the way towards the suction end of the
compressor until they stop. Install washers
and jam nuts on the slide valve shafts. Re-
peat the procedure for the remaining set of
slide valve racks.
must engage the axle
shaft gears at the same
time.
When installing the slide
valve racks, both racks
C)
Install (2) guide rods to position the discharge
manifold. Install a new manifold gasket and
the discharge manifold. Install the dowel pins
and bolts, tighten manifold bolts to the rec-
ommended torque value.
D) On VSS, VSM and VSR compressors install
the discharge as outlined in section 4.11.
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...