Gorman-Rupp Pumps 13A22-B 1063371 and up - Manual (Page 31)

10 SERIES OM-00633
MAINTENANCE & REPAIR PAGE E - 8
seats against the pedestal bore. Be careful not to
damage the oil seal lip.
When installing the shaft and bearings into
the bearing bore, push against the outer
race. Never hit the balls or ball cage.
Apply a light coating of soft grease on the O‐ring
and the O‐ring groove. Replace the bearing retain­
er O‐ring (25).
Press the outboard oil seal (27) into the bearing re­
tainer (32) with the lip positioned as shown in Fig­
ure E-1. Press the bearing retainer into the pedes­
tal until it seats against the bearing. Be careful not
to damage the oil seal lip on the shaft keyway. Be
sure the setscrews (28) are fully screwed into the
bearing retainer, and that they are positioned hori­
zontally in line.
Install the same thickness of bearing adjusting
shim (31) as previously removed, and secure them
with the bearing retaining ring (26). Check the shaft
endplay.
NOTE
Shaft endplay should be between .002 and .010
inch (.05 to .25 mm). Add or remove bearing adjust­
ing shims to achieve the correct endplay.
Install the slinger ring (18) on the shaft.
Lubricate the pedestal as indicated in LUBRICA­
TION at the end of this section.
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.
Inspect the impeller shaft for damage. Small
scratches or nicks may be removed with a fine file
or emery cloth. If excessive wear exists, the shaft
will have to be replaced.
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 (17), or re­
place it if there are nicks or cuts on either end. If any
components 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 O‐
rings and shaft sleeve 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 fol­
lows, (see Figure E-3).