Maintenance
Waukesha Cherry-Burrell
Page 16
95-03074
Issued: January 2003
Revised: June 2005
Type 1 Seal Disassembly
1.
Remove deflector (Figure 14, item B).
NOTE:
Drive key and shims (Figure 14, item A) remain
on motor shaft. If impeller is replaced, add or remove
shims as necessary.
2.
Loosen set screws (2) (Figure 14, item D) in spring
retainer (Figure 14, item C). Slide retainer and washer
(Figure 14, item F) off shaft. Save springs (3) (Figure
14, item E).
3.
Use backplate to slide rotary seal up impeller shaft
approximately 1-1/2 inches (Figure 15).
4.
With backplate resting on impeller, push rotary seal
toward backplate until o-ring is free (Figure 16).
5.
Remove o-ring and lift rotary seal off shaft (Figure
14, item G and H).
CAUTION:
To avoid seal failure, DO NOT place
fingers on seal face.
6.
Lift backplate off impeller.
7.
Remove four 1/4" hex bolts and stationary seal
retainer ring (Figure 17, items A and B).
8.
Pull stationary seal and L-gasket out of backplate
(Figure 17, items C and D).
NOTE:
The stationary seal is brittle. Prying or
hammering on seal plate can shatter seal. If stationary
seal cannot be removed by hand, place 2-1/4 inch
diameter plastic or wood rod on impeller side of seal and
apply even pressure to dislodge.
Figure 14 - Type 1 Seal Components
Figure 15 - Move Rotary Seal Up Shaft
Figure 16 - Push Rotary Seal Down Releasing O-ring
Figure 17 - Remove Stationary Seal
