Vilter VSM 71-701, Operation And Service Manual

Page: 66 / 244

66
Service
1.02 A INSTALLATION (All VSS and
VSR Models)
A) Install the gate rotor support by carefully tilt-
ing the roller bearing end of the gate rotor
support towards the suction end of the com-
pressor. The compressor input shaft may
have to be rotated to facilitate the installa-
tion of the gate rotor support.
Install gate rotor stabilizer. The gate rotor
stabilizer (901) will hold the gate rotor sup-
port in place as the thrust bearing housing
is being installed. If the gate rotor support
is not restricted from moving, the gate rotor
blade may be damaged.
B) Install the roller bearing housing (112) with
a new O-ring (141). Tighten the bolts (152)
to the recommended torque value.
C) When installing the thrust bearing housing
(113), a new O-ring (142) must be used when
the housing is installed. Lubricate the out-
side of the housing and bearings with clean
compressor oil to aid in the installation. Due
to the fit of the bearings on the gate rotor
shaft, the thrust bearing removal and instal-
lation tool with the pusher shoe must be used.
Turn the jacking screw clockwise. 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) using Loctite
®
242 thread locker.
Tighten the bolts to the recommended torque
value.
113
142
115
151
143
116
152
106
160
152
112
141
901
912
910
913 916
915
914