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Fig. 46
MOTOR TROUBLE
CHECK LIST TO DETERMINE
MOTOR TROUBLE
Checking For Moisture in Motor:
Use ohmmeter and set on highest scale. Readings on
the large power cord between any of the conductors
red, black, white to green conductor or motor shell
should be more than 500,000 ohms. Motor probably will
run with a lower reading, but if pump is out of service
and reading is below 500,000 ohms the motor housing
and stator should be removed and baked in a drying
oven at 220°F. to dry out winding. If winding cannot be
dried out it must be replaced.
Both motor housing and stator must be replaced as a
unit as stator is pressed in at the factory and cannot be
removed in the field.
Resistance of Windings:
Every motor winding ha a fixed resistance and winding
must check close to the values given to operate
properly. This winding resistance also shows if motor is
connected for voltage being used.
Use ohmmeter for this test and set on scale to read
directly in ohms.
18. Reassemble all parts as taken apart. BE SURE
NEW O-RINGS ARE IN PLACE BEFORE
BOLTING PARTS TOGETHER. If necessary to
replace cords use cap with cords potted in. In
emergency, cut cord can be spliced and taped.
Reconnect all motor lead wires to power cord with
pressure type insulated connectors. Crimp tight
with crimping pliers that will not penetrate the
insulation of the connector.
19. Reinstall cap and cord assembly. Run OHM
Meter resistance test at this time to check
windings and test for grounding. Test seals with
air pressure as described earlier.
20. Fill motor chamber and seal chamber with
submersible oil. Fill top motor chamber to bottom
of seal plug threads and fill seal chamber to
within ¾" of top of plug fill boss.
IMPORTANT — AFTER ALL ASSEMBLY AND
REPLACEMENT OF PARTS BE SURE PUMP
TURNS FREE BY HAND. PUMP MUST NOT BIND
IN ANY POSITION OR ROTATION.
ELECTRICAL CONTROL BOX — All instructions
and wiring diagrams for connecting pump to control
box are included with the control box.
Winding Resistance Values in Ohms
Motor Type & Voltage
Single Phase, 230V
Full Load Amp Readings for Motors
Motor Type
Volts
Single Phase
230
If amp readings are higher than listed, it indicates
voltage may be higher or lower than normal or that
pump grinder may be clogged with trash causing extra
load on motor.
16
Black To Black To
White
Red
Main
Start
White to
Winding
Winding
Red
1.56
7.84
9.40
Amps
Locked Rotor Amps
12
41.0
23833A596
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