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Pellerin Milnor Corporation
5. Tighten bearing(s).
See the Main Bearing Assembly drawing for your machine for bearing component part numbers.
Removing the Bearing (Front or Rear)
BNWVUM02.T01 0000278621 A.3 A.5 3/12/20 11:54 AM Released
1. Loosen, then remove the main drive belts and cylinder shaft pulley (if applicable) by lowering
the drive base with the jacking bolts. Do not attempt to pry belts off with a pry bar or by roll-
ing the sheave. Remove the bearing cover (or shaft seal holder) to expose the bearing.
2. Bend back the locking tang on the bearing lock washer then remove the lock nut and lock
washer.
3. The center tapped hole in the shaft end is an oil passage through which oil may be forced be-
tween the tapered shaft and the bearing inner race. Install a pipe fitting into this tapped hole
as shown in Figure 19: Connection From Hydraulic Pump to Assist in Bearing Removal, page
60 . Using a “Porta Power” or similar hand operated hydraulic pump, force fluid into the pas-
sage. Pump hard to build up fluid pressure. This pressure will cause the inner race to expand
slightly; just enough to free the tapered surfaces and allow the bearing to slip off easily. If the
bearing is not readily removed, remove the front water level inspection plate and use a timber
to pry up the cylinder to remove cylinder weight from the bearings. Once the bearing is re-
moved, the cylinder drops only approximately 1/32" before the shaft comes to rest on the
shaft support.
4. Slide the bearing off of the shaft and if it is to be reused, place it on a clean surface and cover
with a clean, lint free cloth.
Figure 19. Connection From Hydraulic Pump to Assist in Bearing Removal
Bearing Assemblies
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