Gorman-Rupp Pumps 83C52-B 1337266 and up - Manual (Page 29)

OM−00893 80 SERIES
MAINTENANCE & REPAIR PAGE E − 8
Seal Reassembly and Installation
(Figures 1 and 3)
Inspect the shaft for damage. Small scratches or
nicks may be removed with a emery cloth or a fine
file. If excessive wear exists, the engine will have to
be replaced.
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 with water or a very small amount of light lu-
bricating oil, and apply a drop of light lubricating oil
on the finished seal faces. Assemble the seal as fol-
lows (see Figure 3).
IMPELLER SHAFT
IMPELLER
SHIMS
O-RING
IMPELLER
SPRING
CENTERING
WASHER
SPRING RETAINER
SHAFT
SLEEVE
STATIONARY
SEAT
BELLOWS
ROTATING
ELEMENT
INTERMEDIATE
Figure 3. 25285−855 Seal Assembly