WycoTool Hydraulic Paving Vibrators - Manual (Page 14)

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Wyco Tool Company
3) Rotor Disassembly
Clamp the rib of rotor (6) in a vise. Unscrew
the driver sleeve (9) (left hand thread).
Remove the spacer (8) from the rotor.
Remove the upper bearing cup assembly from
the rotor assembly. Press the bearings (4) and
shim (5) out of upper bearing cup (7).
Unscrew the hex nut (2) from the opposite end
of the rotor (left hand thread). Remove
washer (3), the remaining two bearings and
.005 inch thick shim.
4) Cleaning
Prior to assembly, ensure all of the parts are
cleaned and free of foreign material. Inspect
hoses for any damage and replace when
necessary.
ote: Clean parts to prevent binding
during assembly. Contamination may
cause early failure of bearings.
If reusing the upper bearing cup (7), polish the
inside with Scotch Brite to remove
discoloration. Also, ensure that the inside of
the square housing (1) is thoroughly cleaned.
Replace isolator if broken or rubber is split or
worn.
ote: It is recommended that new
bearings and shims always be installed
when rebuilding a vibrator. Regreased
bearings will not last as long as new
bearings.
5) Bearing replacement
Clamp the rib of the rotor (6) in a vise. If
the rotor has been previously used, polish the
shafts that the bearings fit over with Scotch
Brite. Slide a bearing (4) onto the rotor end
with the shortest length of thread. The writing
on the outer race of the bearing should face
toward the rotor. Then slide a .005 inch thick
shim (5) onto the rotor.
ote: Do not use more than one shim
between bearings.