Gorman-Rupp Pumps 04B3-F4L 1316966 and up - Manual (Page 32)

0 SERIES OM-01216
MAINTENANCE & REPAIR PAGE E - 12
The seal is not normally reused because wear pat­
terns on the finished faces cannot be realigned
during reassembly. This could result in premature
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‐rings with water or a very small
amount of light lubricating oil, and apply a drop of
light lubricating oil on the finished faces. Assemble
the seal as follows, (see Figure 5).
SEAL PLATE
O‐RING
IMPELLER
STATIONARY
ROTATING
DRIVE BAND
BELLOWS
IMPELLER
SHIMS
IMPELLER
SPRING
RETAINER
ELEMENT
SEAT
SHAFT
SHAFT
KEY
Figure 5. 25271-207 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 (29) on a flat surface with the im­
peller side facing up. If the wear ring (26) was re­
moved, press the replacement ring into the seal
plate until it seats squarely against the bore shoul­
der.
The wear ring must seat squarely in the
seal plate bore or binding and/or exces­
sive wear will result.