Gorman-Rupp Pumps SE2C3 115V 1P 1483930 and up - Manual (Page 35)

OM−06492 SE SERIES
MAINTENANCE & REPAIR PAGE E − 13
sulation resistance (see Electrical Testing in
TROUBLESHOOTING). Do not attempt repairs
except to cut off either end of the cable; splicing is
not recommended. Reinstall any wire tags or ter-
minals which may have been removed.
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 (17) with the hardware (15 and 16).
Secure the terminals (11) of the short blue stator
lead to the centrifugal switch contact with the hard-
ware (12 and 13). (The C1 blue lead from the con-
tact to the start capacitor should already be
installed on the contact.)
Inspect the mounting plate grommet (20), and re-
place if required. Feed the remaining leads from
the stator through the grommet and mounting
plate.
Position the bearing shim (45) on the upper bear-
ing (46), then carefully slide the mounting plate
down over the bearing shim and upper bearing.
Make certain that the bearing seats squarely in the
bore.
Secure the overload protector (47) to the mounting
plate with the hardware (48 and 49).
Test the start capacitor (22) for shorts and ground-
ing (see Electrical Testing in the TROUBLE-
SHOOTING). Install the start capacitor in the ca-
pacitor holder (23) and secure the holder to the
mounting plate with the hardware (24 and 25).
Secure the terminal of the green ground wire to the
mounting plate with the previously removed hard-
ware. Make certain the terminal makes good con-
tact with the plate.
Install the head gasket (50) against the mounting
plate.
Install the cable lock (30) on the power cable (31).
Lubricate the bore of the head (21) and install the
power cable through the bore. Secure the cable to
the head with bhe cable lock plate (39) 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 (41) in the stator lead
receptacles (43), then secure with the male and fe-
male connector sleeves (40 and 42). 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.
Connect the start capacitor plugs (27) in the stator
lead receptacles (29), then secure them with the
male and female connector sleeves (26 and 28).
NOTE
Check the wiring diagram in Troubleshooting,
Section D to make sure that all electrical leads are
correctly installed.
Position the head (21) on the motor housing (10)
and secure with the hardware (18 and 19).
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-