78
Pellerin Milnor Corporation
3. Once the bearing housing is free of the shell, carefully slide it off of the guide rods and place
on a clean work surface.
4. The seal sleeve will almost always remain on the shaft when the housing is removed. Remove
the seal sleeve
taking care not to damage or scar it
and place it on a clean work surface.
Precautions for Bearing Replacement
BNWVUM02.C02 0000278703 A.3 A.5 A.4 3/16/20 8:35 AM Released
The most important ingredient in successful bearing and seal installation is
cleanliness
. The bear-
ing housing must be free of all
foreign
matter. The grease and leak off passages must be blown
clear and all
foreign
matter removed. You must have a clean work area. Keep your hands and
tools free from grit and grime. Wash your hands before starting and as required during these pro-
cedures.
Foreign
matter is, without doubt, the most frequent cause of bearing failure, and one
over which the manufacturer has no control.
Where cleaning is required, bearings, bearing housings and seal sleeves may be cleaned with the
following solvents or cleaning agents (in strict accordance with the manufacturer’s recommenda-
tions as such substances are generally toxic and/or explosive under certain conditions):
Benzene
Gasoline
Naptha
Chlorethane
Kerosene
Tricholorethylene
Freons
Mineral Spirts
Do not, however, expose any components to the above substances for more than 24 hours and on-
ly use at room temperature. Never use the following solvents or cleaning agents: alcohols, cre-
sols, phenols, flouro propanols, or other similar chemicals or mixtures.
NOTE:
Hammer blows, overheating, or improper use of force can damage precision
parts.
Replacing the Bearing Housing, Seal Sleeve, and Seals (Front
or Rear)
BNWVUM02.T03 0000278713 A.3 A.5 3/12/20 11:54 AM Released
1. With the seal sleeve removed, press all old seals out of the bearing housing. Remove the large
o-ring from the outside of the housing. Thoroughly clean the bearing housing and flush out
all grease passages to make certain they are unblocked. Remove the o-rings from the inside of
the seal sleeve and clean the seal sleeve.
2. While the bearing housing is disassembled, charge all grease passages with grease. This will
assure that there are no blockages.
3. Replace the o-rings in the seal sleeve and the large o-ring on the outside of the bearing hous-
ing. Replace with new o-rings if the old ones are worn.
4. Press new seals into the bearing housing. You may gently work the seals in with a mallet and
metal drift as shown in
.
Summary of Contents for 42044SR2
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Page 9: ...1 General Service Information Pellerin Milnor Corporation 7 ...
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Page 43: ...2 Safety Related Components Assemblies Pellerin Milnor Corporation 41 ...
Page 51: ...3 Drive Assemblies Pellerin Milnor Corporation 49 ...
Page 59: ...Pellerin Milnor Corporation 57 Drive Base 5 Sheets 4244SP2 SM Single Motor Drive Assemblies ...
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Page 114: ...112 Pellerin Milnor Corporation 6 Shell and Door Assemblies ...
Page 124: ...122 Pellerin Milnor Corporation 7 Control and Sensing Assbmlies ...
Page 128: ...126 Pellerin Milnor Corporation 8 Chemical Supply Devices ...
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Page 136: ...134 Pellerin Milnor Corporation 9 Water and Steam Piping and Assemblies ...
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Page 154: ...152 Pellerin Milnor Corporation 10 Pneumatic Piping and Assemblies ...