INTRODUCTION
Little Giant Submersible 10SH Series Sewage Ejector Pumps are recommended for use in basins or lift
stations and suitable for pumping sewage, effluent, wastewater and other non-explosive, non-corrosive
liquids. The 10SH Series Sewage Ejector Pumps have 1-1/4" spherical solids handling capability.
Automatic operation can be achieved with the use of the RFS Remote Float Switch. Other accessories
such as basins, check valves and covers are also available.
UNPACKING
Little Giant pumps are carefully packaged, inspected and tested to insure safe operation and delivery.
When you receive your pump, examine it carefully to determine that there are no broken or damaged parts
that may have occurred during shipment. If damage has occurred, make notation and notify the firm from
which you purchased the pump and they will assist you in replacement or repair, if required.
SPeCIfICAtIoNS
Discharge:
10SH Series 2" NPT vertical
Intake:
10SH Series 1.75" diameter opening
Housing:
Cast iron
Volute:
Cast iron
Impeller:
Vortex design nylon, with pressure relief vanes
Motor:
Split phase induction, 1750 RPM, with automatic reset thermal overload protection
Hardware:
300 Series stainless steel
Bearing:
Double shielded ball
Shaft Seal:
Mechanical, spring loaded, stationary carbon with Nitrile boot and rotating ceramic seat
Power Cord: 16 AWG 3-conductor copper stranded
Cooling:
The motor housing contains a cooling oil to provide cooling for the motor and to lubricate
bearings and seals. These pumps are capable of operating with the motor housing partially
exposed for extended periods of time, providing sufficient motor cooling and bearing
lubrication. However, for the best cooling and longest motor life, the liquid level being
pumped should normally be above the top of the cast iron motor housing.
SAfetY GUIDeLINeS
WARNING: RISK of eLeCtRIC SHoCK. this pump is supplied with a grounding conductor and/or
grounding type attachment plug. to reduce the risk of electric shock, be certain that it is connected
to a properly grounded grounding type receptacle.
Your pump is equipped with a 3-prong electrical plug. The third prong is to ground the pump to prevent
possible electrical shock hazard. Do not remove the third prong from the plug. A separate branch circuit
is recommended. Do not use an extension cord.
When a pump is in a basin, etc., do not touch motor, pipes or water until unit is unplugged or shut off. If
shut-off box is not accessible, call the electric company to shut off service to the house, or call your local
fire department for instructions. Failure to follow this warning can result in fatal electrical shock.
The flexible PVC jacketed cord assembly mounted to the pump must not be modified in any way, with the
exception of shortening the cord to fit into a control panel. Any splice between the pump and the control
panel must be made within a junction box and mounted outside of the basin, and comply with the National
Electrical Code. Do not use the power cord for lifting the pump.
The pump motor is equipped with an automatic resetting thermal protector and may restart unexpectedly.
Protector tripping is an indication of motor overloading as a result of operating the pump at low heads (low
discharge restriction), excessively high or low voltage, inadequate wiring, incorrect motor connections, or
a defective motor or pump.
1. Read all instructions and Safety Guidelines thoroughly. Failure to follow the guidelines and instructions
could result in serious bodily injury and/or property damage.
2. DO NOT USE TO PUMP FLAMMABLE OR EXPLOSIVE FLUIDS SUCH AS GASOLINE, FUEL OIL,
KEROSENE, ETC. DO NOT USE IN EXPLOSIVE ATMOSPHERES OR HAZARDOUS LOCATIONS
AS CLASSIFIED BY NEC, ANSI/NFPA70. FAILURE TO FOLLOW THIS WARNING CAN RESULT IN
PERSONAL INJURY AND/OR PROPERTY DAMAGE.
3. During normal operation the pump is immersed in water. Also, during rain storms, water may be present
in the surrounding area of the pump. Caution must be used to prevent bodily injury when working near
the pump:
a. The plug must be removed from the receptacle prior to touching, servicing or repairing the pump.
b. To minimize possible fatal electrical shock hazard, extreme care should be used when changing
fuses. Do not stand in water while changing fuses or insert your finger into the fuse socket.
4. Do not run the pump in a dry basin. If the pump is run in a dry basin, the surface temperature of the
pump will rise to a high level. This high level could cause skin burns if the pump is touched and will
cause serious damage to your pump.
5. Do not oil the motor. The pump housing is sealed. A high grade dielectric oil devoid of water has been
put into the motor housing at the factory. Use of other oil could cause serious electric shock and/or
permanent damage to the pump.
6. This pump’s motor housing is filled with a dielectric lubricant at the factory for optimum motor heat
transfer and lifetime lubrication of the bearings. Use of any other lubricant could cause damage and
void the warranty. This lubricant is non-toxic; however, if it escapes the motor housing, it should be
removed from the surface quickly by placing newspapers or other absorbent material on the water
surface to soak it up, so aquatic life is undisturbed.
INStALLAtIoN
Pump must be installed in a suitable gas tight basin which is at least 18" in diameter and 30" deep, and
vented in accordance with local plumbing codes.
10SH Series Sewage Pumps feature a 2" female NPT discharge.
Pump can be installed with ABS, PVC, polyethylene or galvanized steel pipe. Proper adapters are required
to connect plastic pipe to pump.
Pump must be placed on a hard level surface. Never place pump directly on clay, earth or gravel surfaces.
A check valve must be used in the discharge line to prevent backflow of liquid into the basin. The check
valve should be a free flow valve that will easily pass solids.
CAUtIoN: For best performance of check valves, when handling solids install in a horizontal position or at
an angle of no more than 45°. Do not install check valve in a vertical position as solids may settle in valve
and prevent opening on start-up.
When a check valve is used drill a 3/16" hole in the discharge pipe approximately 1" to 2" above the pump
discharge connection and below check valve to prevent air locking of the pump.
WIRING
Check local electrical and building codes before installation. The installation must be in accordance with
their regulations as well as the most recent National Electrical Code (NEC).
To conform to the National Electrical Code all pumps must be wired with 14 AWG or larger wire. For runs
to 250', 14 AWG wire is sufficient. For longer runs, consult a qualified electrician or the factory.
Pump should be connected or wired to its own circuit with no other outlets or equipment in the circuit line.
Fuses and circuit breaker should be of ample capacity in the electrical circuit. See chart below.
H.P.
VOLTAGE
FUSE OR CIRCUIT
BREAKER AMPS
1/2
115
20
1/2
230
15
ReMote fLoAt
SWItCH LeVeL
CoNtRoL
The RFS series pumps are equipped with a remote float switch level control. This level control is sealed in
a polypropylene float cylinder. For automatic operation, the pump must be plugged or wired into a remote
float switch. Pump will run continuously if plugged directly into an electrical outlet.
When the level rises in the basin, the cylinder floats up with the level. When the cylinder position is at an
angle of about 45° the switch activates and starts the pump motor.
As the level draws down, the cylinder floats down and when it is again at an angle of about 45°, the switch
deactivates, and the pump motor stops.
NOTE: BE CERTAIN PUMP IS SECURE IN BASIN AND CYLINDER FLOATS UNOBSTRUCTED WITHOUT
TOUCHING THE BASIN WALLS OR PLUMBING.
ReMote fLoAt SWItCH INStALLAtIoN
1. The float switch consists of three parts:
a. switch
b. cord clamp
c. clamp screw
Note: If screw is lost, use a #10-16 x 1/2" long tapping screw.
2. Attach cord clamp to pump cover as shown in Figure 3. The clamp must be positioned as shown to
allow free operation of float. Be sure to locate pump and switch power cords away from switch float.
3. A 3-1/2" tether length is recommended. When a tether length of 3-1/2" is used, a minimum basin
diameter of 18" is recommended. The tether length is measured as shown in Figure 3.
4. After desired tether length is established hand tighten clamp screw.
5. TESTING: Without water in basin plug pump power cord into switch in-line-plug. Plug switch into
outlet. Lift float and watch for pump to operate. Do not run pump for more than 5 seconds.
oPeRAtIoN
teStING PUMP oPeRAtIoN
RfS SeRIeS SeWAGe eJeCtoR PUMPS
1. These pumps are equipped with a remote float switch.
2. These pumps are installed in a basin with a sealed cover, so switch operation cannot be observed.
The sump cover usually will have a spare hole that is plugged with a rubber plug. This plug can be
removed and switch operation can be observed.
3. Plug power cord and remote float switch power cord into a grounded receptacle with voltage consistent
with pump voltage as indicated on pump nameplate.
4. Run water into basin until pump starts.
5. Be sure gate valve in discharge line is open.
6. Allow pump to operate through several on-off cycles.
MANUAL SeWAGe eJeCtoR PUMPS
The pump cord for these pumps can be plugged directly into a properly grounded receptacle with voltage
consistent with pump nameplate for continuous pump operation.
CAUtIoN: This type of operation should be used only for emergency use or when a large volume of water
is to be pumped. Pump must not be allowed to run dry. If pump is run dry, it may damage pump and void
the warranty.
MAINteNANCe AND SeRVICe
If pump does not operate properly, consult the Troubleshooting Chart. If trouble can not be located with
these steps shown, consult your pump dealer or take pump to a Little Giant authorized service center.
CAUtIoN: When working on pump or switch, always unplug pump power cord in addition to removing
fuse or shutting off circuit breaker before working on pump.
CLeANING IMPeLLeR AND VoLUte
1. Remove screws that hold volute to motor housing.
2. Remove volute and clean impeller and volute passage. Do not use strong solvents on impeller.
3. Be sure impeller turns freely after cleaning.
4. WARNING: DO NOT REMOVE IMPELLER. REMOVAL OF IMPELLER REQUIRES SPECIAL TOOLS
AND IS TO BE DONE ONLY BY AN AUTHORIZED SERVICE CENTER.DO NOT REMOVE MOTOR
HOUSING COVER. WARRANTY IS VOID IF MOTOR HOUSING COVER, IMPELLER OR SEALS HAVE
BEEN REMOVED.
ANY REPAIR ON MOTOR MUST BE DONE BY AN AUTHORIZED LITTLE GIANT SERVICE CENTER.
10SH-CIM
10SH-CIA-RfS
figure 1.
Model No.
Catalog No.
Listing(s)
HP
Volts
Solids Size
(dia. in.)
Amps/
Watts
GPM @ Head
Shut Off
P.S.I.
Power Cord
(ft.)
Wt.
(lbs.)
Dimensions
(H x L x W in In.)
10'
15'
20'
25'
10SH-CIM
511420
UL/CSA
1/2
115
1-1/4"
11/900
100
80
55
20
28'
12.1
15
41.5
12.00 x 10.3 x 8.25
10SH-CIM
511480
UL/CSA
1/2
208-240
1-1/4"
5.5/900
100
80
55
20
28'
12.1
15
41.5
12.00 x 10.3 x 8.25
10SH-CIA-RFS
511520
UL/CSA
1/2
115
1-1/4"
11/900
100
80
55
20
28'
12.1
15
41.5
12.00 x 10.3 x 8.25
figure 2.
Little Giant
P. O. Box 12010
Oklahoma City, OK 73157-2010
405.947.2511 • Fax: 405.947.8720
www.LittleGiant.com
