Maintenance
Waukesha Cherry-Burrell Brand W71/W72RS Sch. 5 Mix Proof Valves
Page 34
95-03091
08/2018
Lower Bearing Carrier O-
ring and Bearing
Replacement
1. Remove and replace the O-ring(s) (Figure 35, item A) located
inside the lower bearing carrier. For the flush/steam barrier
adapter, see Figure 6 on page 13.
Maintenance Video 13: Lower bearing carrier; removal and
replacement of O-ring and bearings
2. Check the split bearing (Figure 35, item B) inside the lower
bearing carrier by feeling the amount protruding from the
lower bearing carrier wall. If the bearing is flush with the wall,
replace the bearing.
3. Place a screwdriver or pick behind the bearing and pry it
away from the wall of the lower bearing carrier. A needle-
nose pliers can be used to grip the bearing for removal.
4. To install the new bearing, coil the bearing to a size smaller
than the inside diameter of the lower bearing carrier and
insert it into the proper location.
5. Push the lower stem into the lower bearing carrier to help
seat the bearing properly.
6. Using your finger, ensure that the bearing is properly seated.
Visually inspect the seating.
7. To remove the outer O-ring (Figure 35, item C), slide or cut
the O-ring off the lower bearing carrier. Do not nick or scratch
the O-ring groove.
8. Lubricate the new O-ring with grease and install it.
9. Re-install the lower bearing carrier into the body prior to re-
installing the entire valve.
Figure 35 - Standard Lower Bearing
Carrier
A
B
C
VA100-085
NOTE:
The bearing will be damaged
during removal and must be replaced
with a new bearing.