Gorman-Rupp Pumps 810A2-F5L 1322933 and up - Manual (Page 27)

80 SERIES OM−02396
MAINTENANCE & REPAIR PAGE E − 8
Shaft And Bearing Removal And Disassembly
(Figure 2)
When the pump is properly operated and main-
tained, the shaft and bearings should not require
disassembly. Disassemble the shaft and bearings
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.
Before attempting to disassemble the intermedi-
ate, remove the drain plug (32) and drain the inter-
mediate. Clean and reinstall the drain plug.
Remove the hardware (23) and separate the bear-
ing cap (24) and gasket set (22) from the intermedi-
ate. Tie and tag the bearing gaskets or measure
and record their thickness for ease of reassembly.
Remove the wavy washer (29). Press the outboard
oil seal (30) from the bearing cap.
Place a block of wood against the impeller end of
the shaft (25) and tap the shaft and assembled
bearings out of the intermediate. Be careful not to
damage the shaft.
Place the intermediate on a level surface with the
drive end down and press the inboard oil seal (34)
from the intermediate bore.
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 intermediate, shaft and all component
parts (except the bearings) 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 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 balls are discolored, replace
the bearings.
The bearing tolerances provide a tight press fit
onto the shaft and a snug slip fit into the intermedi-
ate. Replace the bearings, shaft or intermediate if
the proper bearing fit is not achieved.
If replacement is required, use a bearing puller to
remove the bearings from the shaft.
Shaft and Bearing Reassembly And Installation
(Figure 2)
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