Gorman-Rupp Pumps 66B2-B 370671 and up - Manual (Page 27)

OM−01454 60 SERIES
MAINTENANCE & REPAIR PAGE E − 5
Slide the impeller adjusting shims (42) off the shaft.
Tie and tag the shims or measure and record their
thickness for ease of reassembly.
Seal Removal
(Figures 1 and 3)
Remove the seal washer (41) and outer rotating
element. Use a pair of stiff wires with hooked ends
to pull the remaining seal components out of the
pump casing.
If no further disassembly is required, refer to Seal
Reassembly.
Pump Casing and Balance Ring Removal
Remove the grease cup and piping (5, 6 and 7)
from the pump casing.
Disengage the hardware (23 and 24) and use a
suitable lifting device to separate the pump casing
from the pedestal (22). Position the casing on a
work surface with the suction opening facing up.
Use suitable blocking to support the casing in this
position.
Inspect the balance ring (27) for excessive wear or
scoring. If replacement is required, use a small bit
to drill three holes, 120
_ apart, horizontally through
the ring. Use a chisel or other suitable tool to com-
plete the cuts. Use caution not to damage the cas-
ing bore. Remove the balance ring sectons from
the pump casing.
Shaft and Bearing Removal and Disassembly
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.
If not previously removed, remove the power
source and pedestal mounting hardware and re-
tain the shaft key (16).
NOTE
There are no provisions for draining the grease
from the pedestal. Place a drip pan under the ped-
estal before removing the shaft and bearings.
Remove the hardware (18 and 19) securing the
bearing cap (15) and remove the cap and bearing
shims (21). Tie and tag the shims or measure and
record their thickness for ease of reassembly. Slide
the pedestal foot (26) off the pedestal.
Remove the slinger ring (8). Place a block of wood
against the impeller end of the shaft and tap the
shaft and assembled bearings (10 and 14) from the
pedestal bore.
It is recommended that the oil seal (9) be replaced
whenever the shaft and bearings are removed.
Press the oil seal from the pedestal 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 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.