Gorman-Rupp Pumps 83A52-B 1332148 and up - Manual (Page 29)

OM−00881 80 SERIES
MAINTENANCE & REPAIR PAGE E − 8
Install the slinger ring (27) and shaft key (20). Install
any leveling shims used under the pedestal feet.
Seal Reassembly and Installation
(Figures 1 and 3)
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 shaft sleeve, or replace it
if there are nicks or cuts on either end. If any com-
ponents are worn, replace 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. Discard the spring centering washer in-
cluded with the seal. It is not used in this applica-
trion.
To ease installation of the seal, lubricate the bel-
lows, sleeve and stationary seat O-ring 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 3).
IMPELLER
SHAFT
STATIONARY
SEAT
SEAL
PLATE
ROTATING
ELEMENT
SPRING
SEAT RETAINER
SPRING
IMPELLER
ADJUSTING
SHIMS
BELLOWS
SHAFT
SLEEVE
IMPELLER
O-RING
Figure 3. 25285−854 Seal Assembly