Gorman-Rupp Pumps 14C20-B 740693 and up - Manual (Page 29)

10 SERIES OM-00680
MAINTENANCE & REPAIR PAGE E - 6
Slide the seal plate and stationary portion of the
seal assembly off the shaft as a unit. Position the
seal plate on a flat surface with the impeller side
down. Use a suitably sized dowel to press the seal
stationary components from the seal plate bore.
Position the seal plate on a flat surface with the im­
peller side up and press the oil seal (69) from the
seal plate.
Inspect the seal plate and replace it if cracked or
badly worn.
If no further disassembly is required, see Seal
Reassembly and Installation.
Shaft and Bearing Removal and Disassembly
When the pump is properly operated and main­
tained, the pedestal should not require disassem­
bly. 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.
Remove the pedestal drain plug (17) and drain the
bearing lubricant. Clean and reinstall the drain
plug.
Remove the slinger ring (22).
Using snap ring pliers, remove the bearing retain­
ing ring (12) from the pedestal bore. Remove the
bearing shim set (15); tie and tag the shims or mea­
sure and record their thickness for ease of reas­
sembly.
Loosen the machine screws (79) in the bearing re­
tainer (13). Pry the bearing retainer from the pedes­
tal bore using two screwdrivers against the heads
of the machine screws.
Press the oil seal (11) from the bearing retainer,
and remove the bearing retainer O‐ring (14).
Remove the hardware (20 and 21) and remove the
the assembled bearing cap (4) and oil seal (18).
Press the oil seal from the bearing cap.
Place a block of wood against the drive end of the
shaft and tap the shaft and assembled bearings (5
and 16) from the pedestal. Be careful not to dam­
age the shaft.
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.
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.