4
• If the pump is operated against a low discharge pres-
sure, it may be noisy. Throttle down the discharge gate
valve until the noise is eliminated. This restriction will
not cause any appreciable loss in capacity.
OPERATING
PRIMING
• Fill the pump tank with liquid before starting. This may
be done through the elbow on the side of the tank. Use
pipe compound when replacing the plug in the side
elbow. These Goulds pumps prime and reprime them-
selves providing the pump tank is fi lled with liquid.
Should you lose this liquid from the tank accidentally
or by draining purposely, it will be necessary to refi ll it
with liquid before starting. High suction lifts, or long
suction lines, require additional time and reduce the
performance of the pump. Should you have diffi culty,
refer to the Troubleshooting Guide.
• Always keep liquid in the pump tank. No further
lubrication of the pump end is necessary including the
seal assembly. If fl ow does not start within fi ve minutes,
stop the motor and determine cause (see Trouble-shoot-
ing Guide). Be sure all suction and discharge valves are
open when the pump is priming. Operating the pump
with a closed valve in the system can cause pump dam-
age.
ROTATION
• Your pump is specifi cally designed to rotate as indicated
by the arrow on the pump tank. Three phase motors
can rotate in either direction. Check the rotation. Inter-
changing any two leads of a three phase motor will
reverse the rotation, if this is found necessary.
WINTER STORAGE
• During freezing weather, it is especially important to
drain all of the liquid from the pump tank. This will
prevent ice from cracking the tank or internal parts.
• To maintain the excellent performance of the pump, fol-
low the motor manufacturer’s storage instructions.
LUBRICATION
• The latest engineering advancements have been in-cor-
porated into our self-lubricating shaft seal. The liquid
being pumped cools and lubricates the seal, therefore
the pump should never be run dry. A seal well vent has
been provided to protect the electric motor from liquid
damage should the seal leak.
DO NOT
plug this vent. If
leakage becomes excessive, replace the seal assembly.
MAINTENANCE
• If your pump is not used for a few days, drain the liquid
completely. This will prevent aggravating costly rust
formations.
All electrical work
MUST
be done by
a licensed electrician. Before working
on motors be certain that the electrical power is off at
the main junction box. Disconnect the fuse or circuit
breaker and have the main switch tagged “Do Not Ener-
gize This Switch, Personnel Working on Equipment”.
Some motors are equipped with built-
in thermal over-loads to shut off the
motor in the event the temperature becomes excessive
(as a result of mechanical or electrical problems; such
as low voltage, poor ventilation, overloaded lines, etc.).
These motors will restart automatically as the motor
cools down. For safety sake, do not work on any motor,
without fi rst shutting off the electricity at the source as
outlined above in the “Warning”. Also all three phase
motors are not thermal protected and motor starters are
recommended.
INSTRUCTIONS FOR LICENSED ELECTRICIANS:
TURN POWER OFF
1.
Determine the voltage of the power supply line to
motor. Voltage, phase, ampere draw, and cycles are
given on the motor nameplate.
The wire used to supply power to the motor must be
large enough to carry the amperes for the required
length without excessive voltage drop. The follow-
ing table is meant to be a guide only to the minimum
proper wire size selection. Always consult local electri-
cal codes.
Typical AWG Wire Size for Single Phase Jet Pump Motors
50 Ft. Wire Length
100 Ft. Wire Length
HP
115 V
230 V
115 V
230 V
1
⁄
3
14 – 12 –
½ 14 14 10 14
¾ 12 14 10 14
1 12 14 8 14
1½
10
14
8
12
2 8 12 8 12
WARNING
CAUTION
INSTRUCTIONS FOR LICENSED ELECTRICIANS:
