Gorman-Rupp Pumps 82H65-B 1015831 and up - Manual (Page 26)

OM−03696 80 SERIES
MAINTENANCE & REPAIR PAGE E − 7
out of position in shrinking. If movement has oc-
curred, use a suitable sized sleeve and a press to
reposition the bearings.
If heating the bearings is not practical, use a suit-
able sized sleeve and an arbor (or hydraulic) press
to install the bearings on the shaft.
When installing the bearings onto the
shaft, never press or hit against the outer
race, balls, or ball cage. Press only on the
inner race.
Press the oil seal (10) into the pedestal bore with
the lip positioned as shown in Figure 1.
Slide the shaft and assembled bearings into the
pedestal until the inboard bearing is fully seated
against the bore shoulder.
When installing the shaft and bearings into
the bearing bore, push against the outer
race. Never hit the balls or ball cage.
Press the oil seal (21) into the bearing retainer (23)
with the lip positioned as shown in Figure 1. Re-
place the bearing retainer O-ring (16) in the pedes-
tal, and press the bearing retainer into the pedestal
until it seats against the bearing. Be careful not to
cut the oil seal lip on the shaft keyway. Be sure the
setscrews (20) in the bearing retainer are posi-
tioned horizontally inline.
Install the same thickness of bearing adjusting
shims (22) as previously removed. Reinstall the re-
taining ring (17) and check shaft endplay.
NOTE
Shaft endplay should be .002 to .010 inch (0,05 to
0,25 mm). Add or remove bearing adjusting shims
to obtain this endplay.
Install the slinger ring (9) and shaft key (19). Install
any leveling shims used under the pedestal feet.
Secure the pedestal to the base using the mount-
ing hardware.
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.
NOTE
Do not remove the snap ring from the inside diame-
ter of the seal retainer. Complete disassembly of the
rotating portion of the seal is not recommended.
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 (8) with water or a very small amount of oil,
and apply a drop of light lubricating oil on the fin-
ished faces. Assemble the seal as follows (see Fig-
ure 2).