Gorman-Rupp Pumps SE1 1/2A3 115V 1P 1483930 and up - Manual (Page 30)

OM−06488 SE SERIES
MAINTENANCE AND REPAIR PAGE E − 6
Remove the hardware (68 and 69) securing the
pump casing to the motor housing (10). Use cau-
tion when removing the hardware, tension on the
seal spring will be release.
Carefully slide the pump casing off the shaft. The
shaft sleeve (52) will be removed with the pump
casing. Lubricate the sleeve and press it out of the
dust seal (51). Remove the casing O-ring (57).
Use a screwdriver or other suitable tool to pry the
dust seal out of the pump casing from the back
side.
To remove the stationary portion of the seal, place
the pump casing on a clean cloth with the impeller
side up. Use a drift pin or dowel to press on alter-
nate sides of the stationary seat until the stationary
element and seat are removed.
Lubricate the rotor shaft (50) and work oil under the
bellows assembly. Pull the bellows assembly off
the shaft.
Remove the seal spring.
Lubricate the rotor shaft and work oil under the up-
per bellows assembly. Pull the bellows assembly
and the rotating element off the shaft.
Slide the hooked ends of the two wires along the
shaft and under the upper stationary element and
seat. Hook the back side of the seat and pull them
from the motor housing bore.
Stuff a clean tissue into the stationary seal seat
bore of the motor housing (10) or wrap a small rag
around the shaft to prevent foreign material from
entering the motor cavity.
If no further disassembly is required, proceed to
the appropriate areas in PUMP END REASSEMB-
LY.
NOTE
Do not disassemble the motor unless it is neces-
sary and a clean, well-equipped shop is available. If
the motor housing components are to be serviced,
see MOTOR DISASSEMBLY in this section. Do not
reassemble the pump end components at this time.
PUMP END REASSEMBLY
NOTE
Reuse of old O-rings, gaskets, or shaft seal parts
will result in premature leakage or reduced pump
performance. It is strongly recommended that new
gaskets and shaft seal assemblies be used during
reassembly (see the parts lists for numbers).
Cleaning And Inspection Of Pump Parts
With the pump inverted, stuff a clean tissue into the
stationary seal seat bore of the motor housing (10)
or wrap a small rag around the shaft to prevent for-
eign material from entering the motor cavity.
Carefully inspect any O-rings or gaskets before re-
moval and cleaning to determine if a proper seal
and compression existed prior to disassembly. If
sealing was faulty or questionable, the cause must
be determined and corrected before reassembly.
Replace any parts as required.
Thoroughly clean all reuseable parts with a soft
cloth soaked in cleaning solvent. Remove all O-
rings and gaskets, and clean the sealing surfaces
of dirt or gasket material. Be careful not to scratch
gasket surfaces.
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 rotor shaft (50) for damaged threads,
scoring, or nicks. Remove nicks and burrs with a
fine file or emery cloth to restore original contours.
If the shaft is bent or severely damaged, the rotor
and shaft must be replaced as an assembly (see
MOTOR DISASSEMBLY).
The shaft seal assembly (3) should not be reused
because wear patterns on the finished faces can-
not be realigned during reassembly. This could re-
sult in premature failure. If necessary to reuse an