Gorman-Rupp Pumps SE1 1/2A3 115V 1P 1483930 and up - Manual (Page 33)

SE SERIES OM−06488
MAINTENANCE AND REPAIR PAGE E − 9
Position the strainer squarely on the shoulder of
the impeller cover (61) and secure with the hard-
ware (66 and 67). Make certain that the strainer
seats properly against the shoulder of the impeller
cover.
See LUBRICATION and FINAL ASSEMBLY be-
fore putting the pump back into service.
MOTOR DISASSEMBLY
Disassembly of the motor is rarely required except
to replace the motor rotor, stator, bearings or motor
housing. The rotor and shaft assembly (50) and the
stator (53) cannot be removed from the motor
housing without disassembling the pump end and
removing the head (27). Do not disassemble the
motor unless it is necessary and a clean, well-
equipped shop is available.
NOTE
It is recommended that a pump with a defective mo-
tor be returned to Gorman-Rupp, or to one of the
Gorman-Rupp authorized Submersible Repair
Centers.
The electrical power used to operate
this pump is high enough to cause inju-
ry or death. If the pump power cable is
wired into an optional control box make
certain the switch is in the OFF or STOP
position and locked out, or that the pow-
er supply to the control box has been
otherwise cut off and locked out. Tag
electrical circuits to prevent accidental
start-up.
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.
Head And Power Cable Removal
Total disassembly of the head (27) and power ca-
ble (29) is not always required. The head and pow-
er cable may be serviced without disassembling
the motor housing or pump end. Disassemble and
replace only the parts proven defective by inspec-
tion or testing. See Electrical Testing in
TROUBLESHOOTING.
The oil must be drained, however, before attempt-
ing to disassemble the motor housing and compo-
nents see Draining Oil in PUMP END DISASSEM-
BLY.
All electrical connections and discon-
nections must be made by qualified per-
sonnel. Refer to Figure 1 in this section,
and to the Electrical Wiring Diagram,in
Section B, Installation.
Secure the pump in an upright position. Remove
the hardware (19 and 20) securing the head to the
motor housing (10). Raise the head for access to
the sleeves (38 and 40), plugs and receptacles (39
and 41). Separate the male and female sleeves (38
and 40), and slide them over the power cable and
stator leads. Pull the plugs out of the receptacles.
Remove the head and power cable from the pump.
Remove the hardware (31 and 32) securing the
handle (34) and cable lock (28) to the head. To sep-
arate the power cable (29) from the head, remove
the hardware (36 and 37) securing the cable lock
plate (30) to the head. Pull the cable and lock plate
out of the head. Slide the lock plate off the cable.
Remove the head gasket (48).
NOTE
The mounting plate (18) must be removed if the ro-
tor and shaft (50), bearings (44 and 55), and/or sta-
tor (53) are to be disassembled.
Disconnect the white lead from the stator (53) at its
point of connection to the overload protector (45).
Using caution not to strain any electrical leads, lift
the mounting plate (18) from the upper bearing
(44); the bearing shim (43) will become a free part.