Waukesha 200 series Operation And Maintenance Manual - page 18
Waukesha Cherry-Burrell
Maintenance
Issued: January 2003
95-03074
Page 19
Revised: June 2005
Type 1 Seal Assembly
1.
Carefully place rotary seal in position over impeller
shaft and down against stationary seal.
2.
Lubricate and slide seal assembly o-ring onto impeller
shaft. (Use the spring retainer as a tool to push o-ring
into rotary seal.) (Figure 27).
3.
Slide tabbed washer (Figure 26, item F) over impeller
shaft and engage tabs of washer into notches on
outside of rotary seal. (Figure 26, item F and H).
4.
Install three seal springs into holes in spring retainer
(Figure 26, item C and E). Hold springs in place with
RTV silicone sealant.
5.
Slide spring retainer over impeller shaft until slots in
spring retainer engage drive tabs on washer and
springs rest against washer (Figure 26).
6.
With backplate against impeller, push spring retainer
down to compress springs until length of visible
spring is approximately 1/8".
7.
Lock spring retainer in place by tightening set screws
(2) (Figure 26, item D).
8.
Install deflector onto impeller shaft (Figure 26, item B).
To conclude assembly, turn to page 20,
”Backplate Assembly”.
Type 4 Seal Assembly
1.
Install L-gasket in backplate (Figure 28, items B and
C) and seat retainer. (Figure 28, item T).
2.
Install stationary seals (Figure 28, item S) in L-
gaskets.
3.
Place backplate and rotary seal onto impeller shaft.
4.
Temporarily place .020" shims 180 degrees apart
between impeller and backplate to preset clearance.
Remove shims before final assembly. (Figure 29).
Figure 26 - Type 1 Seal Components
Figure 27 - Install O-ring Using Spring Retainer.
Figure 28 - Type 4 Seal Components
Figure 29 - Place Shims Between Impeller and Backplate