Gorman-Rupp Pumps T8A60S-4045H 1514489 and up - Manual (Page 44)

OM-06522 SUPER T SERIES
MAINTENANCE & REPAIR PAGE E - 17
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 (15 and 16). Install the seal plate O‐ring
(29) and lubricate it with light grease.
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,
remove 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 ex­
ternal 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 8).
Continue to screw the impeller onto the shaft. This
will press the stationary seat into the seal plate
bore.
O‐RING ENGAGED
WITH SEAL PLATE
BORE
SHEAR RING
(UNSHEARED)
Figure 8. Seal Partially Installed
NOTE
A firm resistance will be felt as the impeller presses
the stationary seat into the seal plate bore.
As the stationary seat becomes fully seated, the
seal spring compresses, and the shaft sleeve will
break the nylon shear ring. This allows the sleeve
to slide down the shaft until seated against the
shaft shoulder. Continue to screw the impeller onto
the shaft until the impeller, shims, and sleeve are
fully seated against the shaft shoulder (see Figure
9).
STATIONARY SEAT
FULLY SEATED IN
SEAL PLATE BORE
SHEAR RING
(SHEARED)
Figure 9. Seal Fully Installed
Measure the impeller‐to‐seal plate clearance, and
remove impeller adjusting shims to obtain the
proper clearance as described in Impeller Instal­
lation and Adjustment.