Gorman-Rupp Pumps VG8D3-B 1221466 and up User Manual
Page 27
OM-02819
VG SERIES
MAINTENANCE & REPAIR
PAGE E - 7
port the bearing housing with a wood block until
the pump is fully reassembled. Lubricate the bear
ings as indicated in LUBRICATION.
Seal Reassembly and Installation
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.
To ease installation of the seal, lubricate the shaft
sleeve, O‐rings and bellows with water or a very
small amount of oil, and apply a drop of light lubri
cating oil on the finished faces. Assemble the seal
as follows, (see Figure 2).
SPRING CENTERING
WASHER
SPRING
STATIONARY
ELEMENT
SEAL CAP
ROTATING
ELEMENT
RETAINER
SEAL
COLLAR
O‐RING
A
BELLOWS
IMPELLER SHAFT
SHAFT SLEEVE
SEAL PLATE
SETSCREW
O‐RING
Figure 2. 25271-095 Seal Assembly