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Electrical / Service
Before using pump, check your motor
nameplate for voltage. Your electric supply voltage and
the stamped nameplate voltage must agree. Motors
stamped 200 volts only or 230 volts only, must be
used with that voltage only. Motors stamped with two
voltages (for example 230/460 volts), may be used
with either supply voltage. For these motors check
connections against wiring diagram on motor nameplate
and make any changes necessary to agree with your
supply voltage. If in doubt, call a licensed electrician.
Incorrect voltage will cause serious damage to the motor.
Some models are equipped with three phase motors.
Three phase motors require magnetic starters.
To check motors for proper rotation: The shaft can be
seen through the motor - pump adapter bracket. A mark
can be made on the shaft to make it easier to notice
rotation. Jog the motor (start it briefly) and note the
rotation. It should rotate clockwise when viewed from
the motor-end. If rotation is not clockwise, see motor
nameplate for hookup information. BE SURE power is off
to the motor when working on electrical connections.
Motor normally operates at high
temperature and will be too hot to touch. Before
handling pump or motor, stop motor and allow it to cool
for 20 minutes.
MAX.
MOTOR
LOAD
HP
PHASE vOLTS AMPS
3
1
230
3
3
230
3
3
460
5
1
230
5
3
230
5
3
460
* Time delay fuse or circuit breakers are recommended in any motor
IMPORTANT: BE SURE lead wire opening on end of motor is fully sealed when conduit or a pressure switch is not
used. Failure to seal it properly will allow dirt, rain, bugs, etc. to enter back compartment of motor through conduit
opening and cause malfunction.
TABLE I – Recommended Wire and Fuse Sizes
BRANCH
0 (0)
FUSE*
TO
RATING
50 (15)
AMPS
17.0
25
12 (3)
9.6
15
14 (2)
4.8
15
14 (2)
28.0
40
8 (8.4)
15.2
20
12 (3)
7.6
15
14 (2)
SERvICE
Never run pump dry. Running pump
without water may cause pump to overheat, damaging
seal and possibly causing burns to persons handling
pump. Fill pump with water before starting.
Never run pump against closed discharge.
To do so can boil water inside pump, causing hazardous
pressure in unit, risk of explosion and possibly scalding
persons handling pump.
PRIMING THE PUMP
A tee installed in the discharge opening of the pump,
and provided with a priming plug at the top position,
will enable you to fill the pump with liquid. Once filled
and the priming plug replaced, the pump will prime. The
pump should prime itself time after time, as long as the
built-in check valve functions.
MAINTENANCE
Little or no maintenance to pump is required other than
possible replacement of shaft seal after a reasonable
period of operation (see Page 10).
Lubricate motor according to motor manufacturer's
in-structions. Periodic greasing is required for most
motors.
PUMP STORAGE
Drain pump to prevent freezing.
Keep motor dry and loosely covered. Do not wrap with
plastic sheeting; trapped moisture could cause corrosion
or insulation deterioration.
NOTE: A good rust inhibitor in the liquid end of cast iron
pumps is recommended to prevent excessive corrosion.
DIAMETER IN FEET (METERS) FROM MOTOR TO METER
51 (15)
101 (30)
TO
TO
100 (30)
200 (61)
WIRE SIZE
12 (3)
12 (3)
14 (2)
14 (2)
14 (2)
14 (2)
8 (8.4)
8 (8.4)
12 (3)
12 (3)
14 (2)
14 (2)
circuit.
201 (61)
301 (91)
TO
TO
300 (91)
400 (122)
10 (5.5)
8 (8.4)
12 (3)
12 (3)
14 (2)
14 (2)
8 (8.4)
6 (14)
10 (5.5)
10 (5.5)
14 (2)
14 (2)
6
401 (122)
TO
500 (152)
8 (8.4)
10 (5.5)
14 (2)
6 (14)
8 (8.4)
14 (2)
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