Gorman-Rupp Pumps T10A65S-B /FM - Manual (Page 33)

OM-05522 SUPER T SERIES
MAINTENANCE & REPAIR PAGE E - 11
just larger than the O.D. of the lip seal area of the
shaft.
With the lip seal sleeve in place, lubricate the lip
seal area of the shaft, and slide the shaft and as­
sembled bearings into the bearing housing until
the retaining ring on the outboard bearing seats
against the bearing housing. Remove the lip seal
sleeve.
When installing the shaft and bearings into
the bearing bore, push against the outer
race. Never hit the balls or ball cage.
Position the outboard oil seal (22) in the bearing
housing with the lip positioned as shown in Figure
E‐2. Press the oil seal into the bearing housing until
it is just flush with the machined surface on the
bearing housing.
Press the oil seal (12) into the bearing cap (13) with
the lip positioned as shown in Figure E‐2. Replace
the bearing cap O‐ring (20) and secure the bearing
cap with the hardware (14 and 15). Be careful not
to damage the oil seal lip on the shaft keyway.
Lubricate the bearing housing as indicated in LU­
BRICATION at the end of this section.
Seal Reassembly and Installation
(Figures E‐2 and E‐6)
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. Inspect the seal area of the impeller shaft, and
replace it if badly damaged. Dress any small
scratches with a fine file or emery cloth. If any com­
ponents are worn, replace the complete seal;
never mix old and new seal parts.
A new seal assembly should be installed
any time the old seal is removed from the
pump. Wear patterns on the finished faces
cannot be realigned during reassembly.
Reusing an old seal could result in prema­
ture failure.
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 bel­
lows and stationary seat O‐rings 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 follows, (see Figure E‐6).