Gorman-Rupp Pumps T4A71S-B /F,/FM - Manual (Page 34)

OM-05350 SUPER T‐SERIES
MAINTENANCE & REPAIR PAGE E - 11
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. 46513-151 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 (3) was removed, install the seal
plate gasket (4). Position the seal plate over the
shaft and secure it to the bearing housing with the
hardware (20 and 21). Install the bearing housing
O‐ring (32) and lubricate it with light grease.
To prevent damaging the shaft sleeve O‐ring (29)
on the shaft threads, stretch the O‐ring over a piece
of tubing 1‐1/4 I.D. x 1‐1/2 O.D. x 2‐inches long (32
mm x 38 mm x 51 mm). Slide the tube over the shaft
threads, then slide the O‐ring off the tube and onto
the shaft. Remove the tube, and continue to slide
the O‐ring down the shaft until it seats against the
shaft shoulder.
When installing a new cartridge seal assembly,
remove the seal from the container and, if so
equipped, remove any mylar storage tabs from be­
tween the seal faces.
Some new cartridge seal assemblies are
equipped with mylar storage tabs between
the seal faces. If so equipped, these stor­
age tabs must be removed before install­
ing the seal.
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 (30) provided with the seal,