Gorman-Rupp Pumps 02K52-B 1255789 and up - Manual (Page 24)

OM-01163 0 SERIES
MAINTENANCE & REPAIR PAGE E - 5
Seal Removal and Disassembly
Remove the spring. Apply oil to the shaft and work
it up under the rubber bellows. Slide the rotating
portion of the seal off the shaft.
Remove the hardware (9, 10 and 11) securing the
intermediate bracket (20) to the bearing housing
(13). Slide the intermediate bracket off the shaft
and use a suitably sized dowel to press the seal
stationary element and seat out of the intermediate
from the back side.
Remove the slinger ring (21).
Shaft and Bearing Removal and Disassembly
When the pump is properly operated and main­
tained, the shaft and bearing should not require
disassembly. Disassemble the shaft and bearing
only when there is evidence of wear or damage.
Shaft and bearing disassembly in the field
is not recommended. These operations
should be performed only in a properly
equipped shop by qualified personnel.
Use snap ring pliers to remove the bearing retain­
ing ring (18) from the bearing housing bore. Re­
move the bearing shim set (19); tie and tag the
shims, or measure and record their thickness for
ease of reassembly.
Place a block of wood against the impeller end of
the shaft (17) and tap the shaft and bearings (12
and 14) from the bearing bore.
After removing the shaft and bearing, clean and in­
spect the bearing in place as follows.
To prevent damage during removal from
the shaft, it is recommended that the bear­
ing be cleaned and inspected in place. It
is strongly recommended that the bearing
be replaced any time the shaft and bearing
are removed.
Clean the bearing housing, shaft and all compo­
nent parts (except the bearing) with a soft cloth
soaked in cleaning solvent. Inspect the parts for
wear or damage 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.
Clean the bearing thoroughly in fresh cleaning sol­
vent. Dry the bearing with filtered compressed air
and coat with light oil.
The bearing 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 bearing by hand to check for roughness
or binding. If rotation is rough, replace the bearing.
The bearing tolerances provide a tight press fit
onto the shaft and a snug slip fit into the bearing
housing. Replace the bearing, shaft, or bearing
housing if the proper bearing fit is not achieved.
If bearing replacement is required, use a suitable
puller or an arbor (or hydraulic) press to remove
the bearings from the impeller shaft.
Shaft and Bearing Reassembly and Installation
Clean and inspect the bearing as indicated in
Shaft and Bearing Removal and Disassembly.
To prevent damage during removal from
the shaft, it is recommended that the bear­
ing be cleaned and inspected in place. It