Gorman-Rupp Pumps SE1 1/2A3A 115V 1P 1483930 and up - Manual (Page 34)

OM−06489 SE SERIES
MAINTENANCE & REPAIR PAGE E − 13
Never attempt to alter the length or re-
pair any power cable with a splice. The
pump motor and cable must be com-
pletely waterproof. Injury or death may
result from alterations.
Secure the centrifugal switch contact (14) to the
mounting plate (18) with the hardware (15 and 16).
Secure the terminals (11) of the blue stator leads to
the centrifugal switch contact.
Inspect the mounting plate grommet (21) and re-
place if required. Feed the remaining leads from
the stator through the grommet and mounting
plate.
Position the bearing shim (62) on the upper bear-
ing (63), then carefully slide the mounting plate
down over the bearing shim and upper bearing.
Make certain that the bearing seats squarely in the
bore.
Install the head gasket (61) on the mounting plate.
Secure the overload protector (58) to the mounting
plate with the hardware (59 and 60). Secure the
green ground lead to the mounting plate with the
hardware (24, 25 and 26).
Connect the terminal of the green ground wire to
the mounting plate and secure with the hardware
(23, 24 and 25). Make certain the terminal makes
good contact with the plate.
Feed the red, yellow, white and gray auto control
device leads from the bottom of the device up
through the hole in the device. If required, install
the socket contacts (48) on the white and gray auto
control device leads, and install the contacts in the
socket housing (49). Secure the auto control de-
vice to the mounting plate with the hardware (55
and 56).
Install the cable lock (28) on the power cable (37).
Lubricate the bore of the head (27) and install the
power cable through the bore. Secure the cable to
the head with the cable lock plate (31) and hard-
ware (37 and 38). Secure the cable lock and han-
dle (36) to the head with the hardware (32 and 33).
Install the cable lead plugs (40) in the stator lead
receptacles (42), then secure with the male and fe-
male connector sleeves (39 and 41). Make certain
that the green power cable ground lead is securely
connected to the short ground cable, and that the
ground cable is firmly attached to the mounting
plate.
Refer to the wiring diagram in Section D, Trouble-
shooting, and make all electrical connections.
Cover all electrical lead connections with the male
and female connector sleeves.
NOTE
Check the wiring diagram in Troubleshooting,
Section D to make sure that all electrical leads are
correctly installed.
Position the head (27) on the motor housing (10)
and secure with the hardware (19 and 20).
See PUMP END REASSEMBLY to reassemble the
pump end components.
See VACUUM TESTING followed by LUBRICA-
TION.
VACUUM/PRESSURE TESTING
To ensure the water-tight integrity of the pump, it is
recommended that the motor and seal cavities be
vacuum and pressure tested any time the seal and/
or motor are serviced. The seal cavity must be
pressurized to prevent separation of the seal faces
or unseating the stationary seal seat between the
seal and motor cavities. Use a manometer with a
range of 30 to 0 to 30 inches of mercury to perform
the vacuum test. Do not use a vacuum gauge. Vac-
uum gauges are not sensitive enough to detect mi-
nor leaks.
Drain all of the oil from both the seal and motor
cavities before performing the test. Oil within the
motor cavity will be drawn into the system, result-
ing in damage to the vacuum pump or manometer.
It is recommended that a vacuum pump be used to
draw the vacuum on the motor cavity. If a vacuum
pump is not available, a compressor/venturi sys-
tem may be used. If the compressor/venturi cannot
draw the vacuum level shown in Table E-1, draw
the motor cavity vacuum down as far as the system