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Make sure the power source conforms to the requirements of the equipment being installed.
When wiring an electrically-driven pump, follow all electrical and safety codes, including the most
current National Electrical Code (NEC) and the Occupational Safety and Health Act (OSHA)
requirements in the United States.
To reduce the risk of electric shock, all motors must be adequately grounded to a grounded metal
raceway system, or by using separate grounding wire connected to the bare metal on the motor
frame or to the grounding screw inside the motor terminal box. Refer to the National Electric
Code (NEC) Article 250 (grounding) for further information.
Electrical Connections for Single Phase
Never connect the green (or green and yellow) wire to a
live terminal. Doing so may result in severe electrical
shock and/or damage to the equipment.
1. Make all electrical connections according to the
instructions provided on the electric motor. Select
models can be used for 115V or 230V (single
phase) 50/60 Hz and can be wired for either
portability with a flexible 3-wire cord, or permanent
installation using a grounded power supply.
2. To reduce the risk of electrical shock, the motor must
be properly grounded. This is accomplished by:
• Inserting a plug (portable installations only) directly
into a properly installed and grounded 3-prong
grounding type (GFCI) receptacle.
• Permanently wiring the unit to a grounded metal
frame.
• Using a separate ground wire connected to the
bare metal of the motor frame.
Priming
If the liquid is below the level of the pump, some means
should be provided in installation to prime the pump,
such as a foot valve or check valve to hold prime. Keep
suction lift to a minimum and avoid unnecessary bends
in the suction line. Before starting pump, make sure air
bleeder valve or spray gun is open, or unloader valve is
adjusted to its lowest pressure. After starting pump,
open and close gun several times if necessary to aid
priming the pump. If pump does not prime within a few
seconds, stop motor and inspect installation for suction
line leaks or obstructions. Make sure that strainer is not
clogged. Be sure that suction line is not obstructed,
kinked or blocked. Suction lift not to exceed 5 feet.
If the pump is to operate hours at a time, check
frequently for:
1. Adequate liquid supply. Plunger pumps must not
run dry for more than 30 seconds.
2. Temperature rise. Overheating is harmful to bear-
ings, cups and ceramic plungers.
AC Electrical Connections
3. Voltage should be within 5% of the motor rating.
4. Motor starters may be used.
5. The green, or green and yellow, conductor in the cord
6. Where a 2-prong receptacle is encountered, it must
7. Use wire of adequate size to minimize voltage drop
8. Connections should be made with flexible conduit to
9. After making electrical connections, jog the motor
Operation
Care of Pump
Your pump will last longer and give best performance
when properly taken care of. Proper pump care
depends on the liquid being pumped and when pump
will be used again.
After each use, flush pump with a neutralizing solution
for the liquid just pumped. Follow with a clean water
rinse. This is especially important for corrosive
chemicals.
While this flushing is not absolutely necessary for short
periods of idleness (as overnight), it is good practice to
clean the pump after each use to prevent deposits from
forming and damaging the pump. Using antifreeze not
only coats the interior of the pump with an inhibitor, but
acts as a lubricant as well, keeping valves from sticking
- and protecting against any remaining moisture
freezing in cold weather.
-6-
is the grounding wire. The motor must be grounded
for your protection against electrical shock.
be replaced with a properly grounded 3-prong
receptacle installed in accordance with the National
Electrical Code and local codes and ordinances.
at the motor. The pump motor should be powered
by a separate branch circuit.
minimize vibration transmission.
momentarily to verify correct rotation (CCW when
viewed from front of pump).
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