80 SERIES
OM-00745
MAINTENANCE & REPAIR
PAGE E - 6
Remove the slinger ring (9) from the shaft. Remove
the pedestal mounting hardware from the base.
Tie and tag any shims used under the mounting
feet for leveling.
Use snap ring pliers to remove the bearing retain
ing rings (15 and 18) from the pedestal bore. Re
move the bearing shims (12). For ease of reas
sembly, tie and tag the shims or measure and re
cord their thickness.
Place a block of wood against the impeller end of
the shaft and tap the shaft and assembled bear
ings (16 and 17) out of the pedestal.
After removing the shaft and bearings, clean and
inspect the bearings
in place
as follows.
To prevent damage during removal from
the shaft, it is recommended that bearings
be cleaned and inspected
in place
. It is
strongly
recommended that the bearings
be replaced
any
time the shaft and bear
ings are removed.
Clean the pedestal, shaft and all component parts
(except the bearings) with a soft cloth soaked in
cleaning solvent. Inspect the parts for wear or dam
age and replace as necessary.
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 shaft for distortion, nicks or scratches,
or thread damage on the impeller end. Dress small
nicks and burrs with a fine file or emery cloth. Re
place the shaft if defective.
Clean the bearings thoroughly in
fresh
cleaning
solvent. Dry the bearings with filtered compressed
air and coat with light oil.
Bearings must be kept free of all dirt and
foreign material. Failure to do so will great
ly shorten bearing life.
Do not
spin dry
bearings. This may scratch the balls or
races and cause premature bearing fail
ure.
Rotate the bearings by hand to check for rough
ness or binding and inspect the bearing balls. If ro
tation is rough or the bearing balls are discolored,
replace the bearings.
The bearing tolerances provide a tight press fit
onto the shaft and a snug slip fit into the pedestal.
Replace the bearings, shaft, or pedestal if the
proper bearing fit is not achieved.
If bearing replacement is required, use a bearing
puller to remove the bearings from the impeller
shaft.
Shaft And Bearing Reassembly And Installation
Clean and inspect the bearings as indicated in
Shaft and Bearing Removal and Disassembly
.
To prevent damage during removal from
the shaft, it is recommended that bearings
be cleaned and inspected
in place
. It is
strongly
recommended that the bearings
be replaced
any
time the shaft and and
bearings are removed.
The bearings may be heated to ease installation.
An induction heater, hot oil bath, electric oven, or
hot plate may be used to heat the bearings. Bear
ings should
never
be heated with a direct flame or
directly on a hot plate.
