Gorman-Rupp Pumps 03B51-B 1371962 and up - Manual (Page 26)

OM-01239 0 SERIES
MAINTENANCE & REPAIR PAGE E - 7
Seal Reassembly and Installation
(Figures 1 and 3)
Clean the seal cavity and shaft with a cloth soaked
in fresh cleaning solvent. Make certain to clean all
of the old adhesive sealant from the face of the seal
plate before installing the seal.
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. 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.
NOTE
Discard the spring centering washer included with
the new seal. It is not used in this application.
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 2).
IMPELLER
SHAFT
SEAL
PLATE
ROTATING
ELEMENT
RETAINER
SPRING
IMPELLER
ADJUSTING
SHIMS
IMPELLER
KEY
BELLOWS
O‐RING
STATIONARY
SEAT
SPRING
CENTERING
WASHER
IMPELLER
Figure 2. 25285-854 Seal Assembly