Gorman-Rupp Pumps SE1 1/2A3A 115V 1P 1483930 and up - Manual (Page 30)

OM−06489 SE SERIES
MAINTENANCE & REPAIR PAGE E − 9
The electrical power used to operate
this pump is high enough to cause inju-
ry or death. Make certain that the plug
on the pump power cable is discon-
nected from its receptacle before ser-
vicing.
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 (30) is not always required. Disassemble and
replace only the parts proven defective by inspec-
tion or testing. See Electrical Testing in
TROUBLESHOOTING.
The head and power cable may be serviced with-
out disassembling the motor housing or pump
end, or without draining the oil from the motor cav-
ity. However, the oil must be drained before at-
tempting to disassemble the motor housing and
components.
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 electrical connections.
Pull the male and female connector sleeves (39
and 41) apart, then pull the lead plugs (40) from the
auto control device (28) and ground lead (22) out
of the cable receptacles (42). Disengage the white
wire from the socket housing (49) to the on point
assembly (52).
Remove the assembled head and power cable.
Remove the head gasket (61).
To disconnect the power cable from the head, re-
move the hardware (32 and 33) securing the cable
lock (29) and handle (36) to the head. Remove the
hardware (37 and 38) and pull the cable out of the
head.
If necessary, remove the remaining hardware (37
and 38) securing the handle to the head.
If the auto control device (28) requires replace-
ment, pull the male and female connector sleeves
(44 and 46) apart, then pull the lead plugs (45) from
the red stator lead and overload protector (58) out
of the receptacles (47) on the auto control device
leads. Disengage the hardware (55 and 56) secur-
ing the auto control device to the mounting plate
(18).
To remove the auto control device, separate any re-
maining connector sleeves, plugs and recep-
tacles. Separate the pin and socket housings (49
and 51). If necessary, remove the socket and pin
contacts (48 and 50).
Remove the hardware (59 and 60), disconnect the
motor lead and remove the overload protector
(58).
Using caution not to strain any electrical leads, lift
the mounting plate (18) while guiding the electrical
leads through the grommet (21) to access the cen-
trifugal switch contact (14). Remove the hardware
(12 and 13) and separate the motor lead terminals
(11) from the contact. Disengage the hardware (15
and 16) to remove the centrifugal switch contact.
Carefully remove the mounting plate; the bearing
shim (62) will become a free part. If required, disen-
gage the hardware (24 and 25) securing the green
ground lead (22) to the mounting plate.
NOTE
The centrifugal switch actuator (65) is a press fit
onto the rotor shaft and cannot be removed until the
rotor is removed.
See Head And Power Cable Installation if no fur-
ther disassembly is required.
Rotor And Shaft Removal
See PUMP END DISASSEMBLY and remove all
pump end components and Head And Power
Cable Removal and remove the head and cable.
Carefully lift the rotor/shaft (66) with assembled
bearings (63 and 71) and centrifugal switch actua-
tor (65) from the motor housing. Use caution to pre-
vent the rotor from falling on the stator windings. If