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Gorman-Rupp Pumps U4A60S-B 1289519 and up User Manual

Page 35

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OM-05665

SUPER U SERIES

MAINTENANCE & REPAIR

PAGE E - 11

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 (25 and 26).

To prevent damaging the shaft sleeve O‐ring (30)
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 remove
the mylar storage tabs from between the seal
faces.

New cartridge seal assemblies are
equipped with mylar storage tabs between
the seal faces. These storage tabs must be
removed before installing 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 (29) provided with the seal,
and screw the impeller onto the shaft until it is
seated against the seal (see Figure 6).

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