Maintenance Waukesha Cherry-Burrell
Page 38 95-03009 10/2010
Removal of the Water Cascade
If your system is equipped with a water cascade system, remove it before
proceeding.
1. Loosen the socket head screws holding the water cascade block on
the stationa
ry seat retainer and remove the plastic hose.
2. Pull off the impeller/backplate assembly and place it on a clean flat
surfac
e with the impeller shaft facing up.
NOTE: If the assembly cann
ot be removed from the motor shaft by hand,
contact Waukesha Cherry-Burrell Customer Service.
3. Locate the shims on the motor shaft and remove them.
NOTE: Motor shaft shims may fall off the motor shaft or hang up inside
the de
flector. Be sure to place all shims back on the motor shaft.
CAUTION:
Handle the impeller/
backplate assembly with care to
prevent da
mage to the seal com-
ponents.
4. Place the impeller assembly fa
ce down (on impe
ller vanes) and
remove the hex head screws (Figure 36, item V) from the back of the
seal assembly.
5. Carefully lift off the seat retainer, o-ring, L-gasket, stationary seal, and
flush housing (F
igure 36, items P, R, T, S and U).
6. Loosen (2) set screws in the spring retainer (Figure 36, items W and
H).
7. Lift off rotating seal components See Figure 36:
Rotary Seal (item L)
O-ring (item M)
Washer (item K)
Spring Retainer (item H)
Springs (there are six springs, 3 up and 3 down) (item J)
Washer (item G)
8. Use the backplate to slide the rota
ry se
al up the impeller shaft
approximately 1-1/2 inches (Figure 38).
9. With the backplate resting on the impelle
r, push the rotary seal
toward the backplate until the o-ring is free (Figure 39).
10. Remove the stationary seal and L-gasket from the backplate. (Figure
40, items D and C)
NOTE: The stationary seal is
brittle. Prying or hammering on the seal
plate can shatter the seal. If the stationary seal cannot be removed by
hand, place a 2-1/4 inch diameter plastic or wood rod on the impeller side
of the seal and apply even pressure to dislodge the seal.
11. Inspect and replace all damaged and worn parts.
Figure 37 - Removal of Water Cascade
System
Figure 38 - Move Rotary Seal Up Shaft
Figure 39 - Push Rotary Seal Down
To Next Page
Loading...
Need help?
General
