Gorman-Rupp Pumps 81 1/4B3-E.33 1P 24971 and up - Manual (Page 23)

OM−00793 80 SERIES
MAINTENANCE & REPAIR PAGE E − 5
Seal Removal
(Figures 1 and 2)
Remove the seal spring.
Apply oil to the seal area of the shaft and work it up
under the rubber bellows. Slide the rotating portion
of the seal off the shaft.
Slide a pair of stiff wires with hooked ends between
the motor shaft and the stationary seal element.
Use the wires to hook the back side of the station-
ary element and pull it out of the pump casing (1).
NOTE
An alternate method of removing the seal assembly
is to unscrew the four long screws that pass
through the motor housing and secure the pump
casing to the motor. Apply oil to the seal area of the
shaft and work it up under the rubber bellows. Pull
the pump casing off the motor shaft, being carefull
not to drop or damage the seal as it comes off the
shaft. Use a suitably sized dowel to press the seal
stationary seat and element out of the pump casing
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).