Gorman-Rupp Pumps 81 1/2D3-X1 1P 326949 and up - Manual (Page 23)

OM−00759 80 SERIES
MAINTENANCE & REPAIR PAGE E − 5
measure and record their thickness for ease of
reassembly.
Seal Removal
(Figures 1 and 2)
Remove the seal washer (25), spring centering
washer and seal spring.
Apply oil to the seal area of the shaft and work it up
under the rubber bellows. Remove the hardware (9
and 10) securing the intermediate to the motor
(11). Slide the intermediate and seal assembly off
the shaft.
Position the intermediate on a flat surface with the
impeller side down. Use a suitably sized dowel to
press the seal stationary seat and element out of
the intermediate from the back side.
Seal Reassembly and Installation
(Figures 1 and 2)
Clean the seal cavity and shaft with a cloth soaked
in fresh cleaning solvent.
Most cleaning solvents are toxic and
flammable. Use them only in a well-ven-
tilated area free from excessive heat,
sparks, and flame. Read and follow all
precautions printed on solvent contain-
ers.
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. Clean and polish the seal area of the shaft.
Small nicks and burrs can be removed using a fine
file or emery cloth. If any components are worn, re-
place the complete 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 seal
area of the shaft with water or a very small amount
of oil, and apply a drop of light lubricating oil on the
finished faces. Assemble the seal as follows, (see
Figure 2).