Gorman-Rupp Pumps 04A3-B 818101 and up - Manual (Page 28)

0 SERIES OM-01207
MAINTENANCE & REPAIR PAGE E - 8
failure. If necessary to reuse an old seal in an emer­
gency, carefully wash all metallic parts in fresh
cleaning solvent and allow to dry thoroughly.
Handle the seal parts with extreme care to prevent
damage. Be careful not to contaminate precision
finished faces; even fingerprints on the faces can
shorten seal life. If necessary, clean the faces with a
non‐oil based solvent and a clean, lint‐free tissue.
Wipe lightly in a concentric pattern to avoid
scratching the faces.
Inspect the seal components for wear, scoring,
grooves, and other damage that might cause leak­
age. If any components are worn, replace the com­
plete seal; never mix old and new seal parts.
If a replacement seal is being used, remove it from
the container and inspect the precision finished
faces to ensure that they are free of any foreign
matter.
To ease installation of the seal, lubricate the bel­
lows and O‐ring with water or a very small amount
of light lubricating oil, and apply a drop of light lu­
bricating oil on the finished faces. Assemble the
seal as follows, (see Figure 2).
IMPELLER
SHAFT
SEAL
PLATE
ROTATING
ELEMENT RETAINER
SPRING
IMPELLER
ADJUSTING
SHIMS
IMPELLER
BELLOWS
SHAFT
SLEEVE
O‐RING
STATIONARY
SEAT
IMPELLER
KEY
Figure 2. Seal Assembly
This seal is not designed for operation at
temperatures above 160
_F (71_C). Do not
use at higher operating temperatures.
Lay the seal plate (8) on a flat surface with the im­
peller side facing up.
If removed at disassembly, press the replacement
wear ring (51) into the seal plate until it seats
squarely against the shoulder bore.
The wear ring must seat squarely in the
seal plate bore or binding and/or exces­
sive wear will result.