Maintenance Waukesha Cherry-Burrell
®
Brand C-Series Pump
Page 50 95-03008-IEC 01/2019
Reassembly
NOTE: The images refer to the pin impeller design, but the
instructions apply to the sealed impeller design as well.
DG stationary seal seats are reversible as supplied by the fac-
tory. To reverse the DG seal, remove the four nuts and washers
tha
t secure the gland ring to the backplate, and lift off the gland
ring. The stationary seat can be turned over to bring the unused
surface into use.
NOTE: If the
seal has been replaced or the drive collar loosened,
it will need to be repositioned:
1. Assemble the PTFE gaskets, seal seat, gland ring, and
washe
rs on the backplate (as shown in Figure 120), and
tighten them uniformly with th
e hex nuts.
NOTE: PTFE gaskets with different thicknesses are used. The
thicker gasket (80R) must always be installed on the impeller side
to prevent contact between the impeller hub and the stationary
seat. (See Figure 118 on page 49 and Figure 120 on this page.)
2. Place the drive collar onto the stub shaft.
3. Install the backplate, ca
sing gasket, and casing.
4. Install and tighten the casing clamp.
5. Using an appropriate tool, set the drive collar to the dimen-
sion “A” as shown in Figure 121, and tighten the setscrew of
the drive collar.
6. Remove the casing clamp, casing and backplate.
7. Assemble the spring, seal cup, O-ring, and inboard rotary
sea
l onto the drive collar. See Figure 122.
NOTE: Make sur
e that the pin on the drive collar is in line with the
slot on the cup. (See Figure 45 on page 29.)
Figure 120 - Stationary Seal Seat
CT100-210
Gland
Ring
Seal Seat
Hex Nut
& Washer
Backplate
Thin (80P)
Thick (80R)
PTFE Gasket
PTFE
Gasket
Figure 121 - Drive Collar Adjustment for
“DG” Seal (Pin Impeller Design shown)
Model Dimension “A”
C-114 / C-216 0
,295" (7,5 mm)
C-218 / C-328 0
,312" (7,9 mm)
Figure 122 - Installing Seal (Pin
Impeller Design shown)
Motor
O-ring
Inboard
Seal Cup
Drive Collar
Spring
Rotary Seal
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