Maintenance Waukesha Cherry-Burrell
Page 26 95-03087 10/2012
Radial Seat Ring
Replacement (for W72RS
Lower Stem)
1. Remove the lower stem radial seal by carefully prying up and
cutting the o-ring. Pry up the o-ring and pull it out to remove
it. Do not scratch or nick the metal seating surface.
Maintenance Video 11: Radial Seal Removal
2. Clean the radial seal groove after removal.
3. Ensure that the vent port in the back of the groove is clean
and unblocked.
4. Lubricate the o-ring seal and expand it over the stem groove.
5. Place the assembly tool over the stem, ensuring proper tool
or
ientation. Extrude the o-ring seal into the groove by evenly
tightening the cap screws on the installation tool.
6. Remove the tool. The dovetail groove permanently retains
the o-ring seal.
Maintenance Video 12: Radial Seat Ring Replacement
For a list of installation tools, see “Installation Tools” on page 84.
Figure 24 - Radial Seal Installation
12
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