S SERIES
OM--05096
OPERATION
PAGE C -- 2
the liquid level to drop below the bottom of the
pump motor cover to ensure cooling of the
pump motor.
2. The tie is positioned on the cable approxi-
mately 6 inches (152 mm) below the float. This
setting allows approximately 9 inches (229
mm) of liquid rise between pump start/stop.
The start/stop interval may be increased by
loosening the nut on the plastic tie swivel and
extending the float end of the power cable.
The liquid level in the sump will increase ap-
proximately 8 inches (203 mm) between start/
stop intervals for every 6 inches (152 mm) of
cable increase.
3. Plug the pump power cable into the female
end of the float cable plug.
4. Plug the float cable into a
grounded
recep-
tacle. It is
strongly
recommended that a
Ground Fault Interrupter (GFI) type recep-
tacle (or equivalent) be used (see Figure 2).
Operational Checks
Check the pump for proper operation when it is first
started and periodically thereafter to identify minor
problems.
Check the pump for unusual noises or excessive
vibration while it is operating. If noise or vibration is
excessive, stop the pump and refer to the
troubleshooting chart for possible causes.
Check the pump strainer screen for clogging
caused by stones, sticks, or other debris. Clean
the strainer screen when required. In some cases,
stopping the pump momentarily may back flush
the strainer screen, purging most of the debris
from it. If this fails to clean the screen, unplug the
pump , remove it from the sump, and remove the
debris manually (see
MAINTENANCE AND RE-
PAIR
in Section E).
Never
introduce air or steam pressure into the
pump casing or piping to remove a blockage. This
could result in personal injury or damage to the
equipment. If backflushing is absolutely neces-
sary,
liquid pressure
must be limited to 50% of the
maximum permissible operating pressure shown
on the pump performance curve (see
MAINTE-
NANCE AND REPAIR
, Section E).
STOPPING
To stop the pump when in manual mode, simply
unplug it from the receptacle. After stopping the
pump, be sure to perform all required maintenance
and preservation procedures.
This pump is equipped with automatic
thermal overload protection which will stop
the pump if overheating occurs. Unplug
the pump and allow it to cool before at-
tempting to service the pump.
When operated in the automatic mode, the pump
will stop and start as the liquid level rises and falls.
For service or extended stopping, unplug both the
pump and float switch from the receptacle.
Storage and Cold Weather Preservation
After stopping the pump, use the rope or chain at-
tached to the lifting handle on the pump to remove
the pump from the sump.
Do not
lift the unit by the
power cable or the discharge piping. Customer in-
stalled equipment such as rigid discharge piping
must
be removed before attempting to lift.
Do not attempt to lift the pump by the
power cable or piping. Attach proper
lifting equipment to the handle on the
pump.
Clean the strainer screen before storage. If the
application involves a lot of mud or sludge, remove
the strainer and clean the impeller before storage.
NOTE
The most common cause of failure to run is hard-
ened mud or sludge in the impeller.
In freezing temperatures, the pump will not freeze
as long as it is submerged in liquid. If the pump
casing is not submerged, or if the liquid begins to
freeze, remove the pump from the sump and allow
