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Power-Flo Pumps & Systems • 877-24PUMPS • www.powerflopumps.com
Receiving & Installation
Receiving Inspection
Upon receiving the pump, it should be
inspected for damage or shortages.
If damage has occurred, file a claim
immediately with the company that
delivered the pump. If the manual is
removed from the packaging, do not
lose or misplace.
Storage
Any product that is stored for a period
longer than six (6) months from the
date of purchase should be bench
tested prior to installation. A bench
test consists of, checking the impeller
to assure it is free turning and a run
test to assure the motor (and switch
if provided) operate properly. Do not
pump out of liquid.
Controls
The Cutter pump series require a
separate approved pump control device
or panel for automatic operation. Be
sure the electrical specification of the
control selected properly match the
electrical specifications of the pump.
Location
The Cutter pumps are designed for use
in sump and lift station applications
where water, effluent, and/or raw
sewage laden with unscreened solids
are present. The cutting mechanism is
designed to “cut” hard to handle solids
such as linen, gloves, cloth, rubber,
plastic and other items into small
passable filaments. The cutter pumps
are typically used in tough installations
such as hospitals, prisons, hotels, retail
stores, highway rest areas, etc., where
unwanted items are disposed of that
could clog a standard sewage pump.
This pump is designed to pump,
nonexplosive and noncorrosive
liquids and shall NOT be
installed in locations classified
as hazardous in accordance
with the National Electrical
Code (NEC) ANSI/NFPA 70 or
Canadian Electric Code (CEC).
Submergence
The pump should always be operated in
the submerged condition. The minimum
sump liquid level should never be less than
above the pump’s volute (See Figure 1).
The cutter pumps are NOT designed to run
dry. The casing MUST be submerged.
Installation
The cutter pumps can be installed in a
wet well utilizing a slide rail assembly.
The use of a slide rail assembly provides
ease of installation and removal of the
pump without requiring personnel to
enter the wet well.
The sump or basin shall be sealed
and vented in accordance with local
plumbing codes.
The pump should never be installed
in a trench, ditch, or hole with a dirt
bottom. The suction will become
plugged. The installation should be
at a sufficient depth to ensure that all
plumbing is below the frost line. If this
is not feasible, remove the check valve
and size the basin to accommodate the
additional backflow volume.
Discharge Piping
Discharge piping should be as short as
possible and sized no smaller than the
pump discharge.
Do not reduce the
discharge pipe size below that which
is provided on the pump.
Both a check valve and a shut-off valve
are recommended for each pump. The
check valve is used to prevent backflow
into the sump. The shut-off valve is
used to manually stop system flow
during pump servicing.
Liquid Level Controls
The level control(s) should be mounted
on the discharge piping, a cable rack
or float pole. The level control should
have adequate clearance so it cannot
hang up in it’s swing and that the pump
is completely submerged when the
level control is in the “Off” mode. By
adjusting the cord tether the control
level can be changed. One cycle of
operation should be observed, so that any
potential problems can be corrected.
It is recommended that the level control
float should be set to insure that the liquid
in the sump never drops below the top of
the motor housing or a minimum level of
just above the pump’s volute.
Bottom of Floor
13”
PF4SCC, 4SCD, 4SCE, 4SCF
Submersible Cutter Pumps
Recommended
Submergence Level
Minimum
Submergence Level
Figure 1
