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Gorman-Rupp Pumps 03A52-B 1327255 and up User Manual

Page 26

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OM-01177

0 SERIES

MAINTENANCE & REPAIR

PAGE E - 7

until the inboard bearing seats against the inboard
bearing cap. Use caution not to roll or cut the lip of
the oil seal (15).

When installing the shaft and bearings into
the bearing bore, push against the outer
race. Never hit the balls or ball cage.

Install the complete set of gasket/shims (26) on the
pedestal side of the bearing retaining ring with the
split at the 12:00 position.

Press the oil seal (22) into the bearing cap (19) with
the lip positioned as shown in Figure 1. The face of
the oil seal should be flush with the outside of the
bearing cap.

Secure the bearing cap to the pedestal with the
hardware (24 and 25). Be careful not to damage
the oil seal lip on the shaft keyway.

Install the slinger ring (14).

Lubricate the bearing housing as indicated in LU­
BRICATION
.

Seal Reassembly and Installation

(Figures 1 and 2)

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. 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. Discard the spring centering washer in­
cluded with the seal. It is not used in this applica­
tion.

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).