OM-06783
SUPER T SERIES
MAINTENANCE & REPAIR
PAGE E - 11
A new seal assembly should be installed
any time
the old seal is removed from the
pump. Wear patterns on the finished faces
cannot be realigned during reassembly.
Reusing an old seal could result in prema
ture failure.
To ease installation of the seal, lubricate the shaft
sleeve O‐ring and the external stationary seat O‐
ring with a very
small
amount of light lubricating oil.
See Figure 5 for seal part identification.
SEAL PLATE
O‐RINGS
IMPELLER
SHAFT
STATIONARY
SEAT
STATIONARY
ELEMENT
ROTATING
ELEMENT
DRIVE BAND
BELLOWS
IMPELLER
SHIMS
IMPELLER
SPRING
RETAINER
INTEGRAL
SHAFT
SLEEVE
SLEEVE
O‐RING
SPRING
CENTERING
WASHER
SHEAR
RING
(SHEARED)
Figure 5. Cartridge Seal Assembly
This seal is not designed for operation at
temperatures above 160
F (71
C). Do not
use at higher operating temperatures.
If the seal plate (5) was removed, install the seal
plate gasket (6). Position the seal plate over the
shaft and secure it to the bearing housing with the
hardware (8 and 9).
To prevent damaging the shaft sleeve O‐ring (4) on
the shaft threads, cover the threads with electrical
or duct tape. Slide the O‐ring over the shaft until it
seats against the shaft shoulder. Remove the tape
covering the threads. Check to ensure that the
shaft threads are free of any tape residue and clean
as required before proceeding with seal installa
tion.
When installing a new cartridge seal assembly, re
move the seal from the container and lubricate the
external stationary seat O‐ring with light oil. Slide
the seal assembly onto the shaft until the external
stationary seat O‐ring engages the bore in the seal
plate.
Clean and inspect the impeller as described in
Im
peller Installation and Adjustment
. Install the full
set of impeller shims (3) provided with the seal, and
screw the impeller onto the shaft until it is seated
against the seal (see Figure 6).
