OM-07174
SUPER T SERIES
MAINTENANCE & REPAIR
PAGE E - 17
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 (19) and the external stationary seat
O‐ring with a very
small
amount of light lubricating
oil. See Figure 8 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 8. 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 (20) was removed, install the seal
plate gasket (18), position the seal plate over the
shaft and secure it to the bearing housing with the
hardware (21 and 22). Install the bearing housing
O‐ring (29) and lubricate it with light grease.
To prevent damaging the shaft sleeve O‐ring (19)
on the shaft threads, cover the threads with electri
cal 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
installation.
When installing a new cartridge seal assembly
,
remove the seal from the container lubricate the ex
ternal stationary seat O‐ring with light oil. Slide the
seal assembly onto the shaft until the external sta
tionary 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 (25) provided with the seal,
and screw the impeller onto the shaft until it is
seated against the seal (see Figure 9).
