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INSTALLATION / OPERATION / ELECTRICAL

PUMP INSTALLATION

Set the pump on the bottom of the sump, making sure that
it sits solidly and is level. Be sure there is enough space
around the pump to allow the switch free movement as the
sump water level changes. Do not install the pump on clay,
earth, or sand surface.

Risk of flooding. If a flexible discharge

hose is used, pump may move around in sump when
motor starts. 

If it moves far enough so that the switch hits

the side of the sump, the switch may stick and prevent
pump from starting. Make sure that pump is secured so that
it cannot walk around in sump.

Hose Kit No. 27909 can be used as the discharge pipe. Run
the discharge pipe to the nearest sewer outlet or other point
of disposal. Use the most direct route and the fewest turns
and elbows possible.
Use Teflon tape to seal threads in plastic pipe. Hand tighten
only.

NOTE:

To avoid backflow into sump when pump shuts off,

install a Check Valve, SEARS Stock No. 2789, in threaded dis-
charge port of pump. A SEARS No. 2789 Check Valve is con-
structed with an anti-airlock hole. If you use a SEARS No. 2792
or any other check valve, drill a 1/8” hole in the discharge pipe
just above the pump discharge port and below the Check
Valve to prevent pump from airlocking.
Make sure the air-bleed hole is down inside the sump so that
it does not run water on the basement floor when the pump
is running.

AUTOMATIC FLOAT SWITCH
INSTALLATION AND OPERATION

Your SEARS Model 390.305001 and 390.305002 Submer-
sible Drainers come with the automatic float switch
mounted on the motor housing ready for operation. Tether
length is factory set at 3" (76mm). Do not change tether
length. See Page 7 for vertical float switch instructions.

Risk of electric shock. Always disconnect

the pump and switch from the electrical power source
before doing any maintenance! 

Follow instructions below to install pump with factory
mounted switch:

1. Be sure automatic float can swing freely through its entire

arc without interference from pump, piping, sump wall
or any other object.

2. Plug the automatic switch cord into a properly grounded

outlet (see “Electrical Connections”, Page 4). Plug the
pump power cord into the back of the  switch plug.

3. Test the installation by adding water to the sump pit until

pump operates normally as follows:
A. When sump is dry, the watertight automatic float

switch is hanging in a downward position and the
pump is off.

B. As water comes into the sump, the automatic float

switch rises to an upward position and the pump starts.

C. Water will continue to be pumped until the float switch

is hanging in the downward position again, when
pump will stop.

DO NOT ALLOW PUMP TO RUN DRY!
Be sure to leave at least 5" (127mm) of water above
pump base plate when pump stops. Running pump
dry could ruin the pump and will void the warranty. 

ELECTRICAL CONNECTIONS

The Sump Pump has a 3-prong electric plug. The third prong
is used to ground the pump to prevent possible fatal shock.
The third prong should never be removed. Your electrical
outlet should be the 3-prong, polarized type with an inter-
nal ground.
An individual branch 15 amp electrical circuit is recom-
mended. 

DO NOT USE AN EXTENSION CORD.

Testing for Ground

For your safety, check your outlet for ground using an
Underwriters Laboratory Listed Circuit Analyzer (Figure 3A).
A Circuit Analyzer will tell you by a pattern of lights if the
power, neutral, and ground wires are correctly connected
to your outlet. It can also be used to check other outlets in
your home. A Circuit Analyzer is available in the Sears
Electrical Department.

4

UL Listed
Analyzer

Outlet

665 0194

Figure 3A

3"

(76 mm)

Figure 2

Switch tether is  factory set at 3" (76mm).

NOTICE:

Do not change tether length.

Summary of Contents for Craftsman 390.305001

Page 1: ... Rules and Operating Instructions Before First Use of This Product Save This Manual For Future Reference Sears Roebuck and Co Hoffman Estates IL 60179 U S A Safety Instructions Installation Electrical Maintenance Repair Parts PROFESSIONAL SUBMERSIBLE SUMP PUMP Form No CR907 8 20 10 ...

Page 2: ...age due to flooding consult your local Sears store about installing a secondary sump pump or a DC backup sump pump See Service Page 6 for information about common sump pump problems and remedies 1 To avoid risk of serious bodily injury and property dam age read safety instructions carefully before installing pump 2 Follow local and or national plumbing and electrical codes when installing pump 3 T...

Page 3: ...cing This pump has not been investigated for use in swimming pool areas This pump is supplied with a grounding conductor and grounding type attachment plug Be certain that it is connected only to a properly grounded ground ing type receptacle Where a 2 prong wall receptacle is encountered it must be replaced with a properly grounded 3 prong receptacle installed in accordance with the National Elec...

Page 4: ...the pump and switch from the electrical power source before doing any maintenance Follow instructions below to install pump with factory mounted switch 1 Be sure automatic float can swing freely through its entire arc without interference from pump piping sump wall or any other object 2 Plug the automatic switch cord into a properly grounded outlet see Electrical Connections Page 4 Plug the pump p...

Page 5: ...air a non operational sump pump Take it to Sears for service by a qualified technician Generator Sizing Below is the minimum Engine Generator Watt rating required to power this pump motor Any additional loads such as lights must be added to the listed load and the generator sized ac cordingly Generators are available at all Sears Stores Pump Minimum Watt Model HP Rating of Generator 390 305001 390...

Page 6: ...take screen b Water may be entering sump faster than the pump can discharge it c Be sure vertical distance from pump discharge outlet to discharge pipe outlet does not exceed maximum vertical pumping distance shown in Specifications below d Be sure discharge pipe is not plugged or frozen TEATHERED SWITCH REPLACEMENT NOTICE Teathered float must be able to swing through its complete arc without inte...

Page 7: ...n Part Number 1 Switch PS117 144P 2 Screw U30 955PS 3 Cord Clip CC0030 13 4 Power Cord PS117 54 TSU 5 Motor Housing 6 Upper Volute PS1 28P 7 Screws U30 920SS 3 Req 8 Impeller PS5 22P 9 Volute Gasket PS20 19 10 Base Plate PS3 29P 11 Cap Screws U30 934ZP 8 Req REPAIR PARTS LIST Quantity ONE unless otherwise noted Not illustrated If motor fails replace entire pump 7 5 4 1 2 3 8 9 10 11 6 ...

Page 8: ...self For Sears professional installation of home appliances and items like garage door openers and water heaters 1 800 4 MY HOME 1 800 469 4663 Call anytime day or night U S A and Canada www sears com www sears ca Our Home For repair of carry in items like vacuums lawn equipment and electronics call or go on line for the location of your nearest Sears Parts Repair Center 1 800 488 1222 Call anytim...

Page 9: ...as instrucciones antes de comenzar la instalación Conservar este Manual para referencia futura Sears Roebuck and Co Hoffman Estates IL 60179 U S A Instrucciones seguridad Instalación Electricidad Mantenimiento Repuestos BOMBA PROFESIONAL SUMERGIBLE DE SUMIDERO Formulario N CR907 8 20 10 ...

Page 10: ...ecundaria o una bomba de sumidero de reserva operada a batería Consulte la sección Servicio Página 6 para información sobre problemas comunes de la bomba de sumidero y soluciones 1 Antes de instalar la bomba leer cuidadosamente las instruc ciones de seguridad a fín de evitar daños materiales o lesiones personales graves 2 Al instalar la bomba respetar todos los códigos eléctricos locales y o nacio...

Page 11: ...a tierra Asegúrese de que sea conec tada solamente a un tomacorrientes debidamente puesto a tierra Si el tomacorrientes sirve solamente para enchufes de dos clavijas debe ser reemplazado por un tomacorrientes para enchufes de tres clavijas debidamente puesto a tierra insta lado de acuerdo con el Código Eléctrico Nacional y los códi gos y reglamentos locales 15 Proteger el cordón eléctrico de ser d...

Page 12: ...léctrica antes de efectuar algún trabajo de mantenimiento Seguir las instrucciones que se indican a continuación para in stalar la bomba provista con interruptor montado en la fábrica 1 Asegurarse de que el flotador automático pueda desplazarse libremente a través de todo su arco sin interferencia de la bomba de la tubería de la pared del sumidero o de cualquier otro objeto 2 Enchufar el cordón de...

Page 13: ...to cuando se está trabajando en ella NO intente reparar una bomba de agua que no funcione Llévela a Sears para que sea reparada por un técnico calificado Determinación de la Potencia del Generador A continuación se indica la potencia nominal mínima en Watts requerida por el Generador para alimentar el motor de esta bomba Cualquier carga adicional tales como luces se deben agregar a las cargas ante...

Page 14: ... bomba b El agua le puede estar entrando al sumidero en forma más rápida que como puede descargarla la bomba c Be sure vertical distance from pump discharge outlet to dis charge pipe outlet does not exceed maximum vertical pumping distance shown in Specifications below d Asegurarse de que la tubería de descarga no esté obstruida o congelada REEMPLAZO DEL CONMUTADOR ANCLADO AVISO El interruptor de ...

Page 15: ... contrario No se ilustra Si falla el motor reemplace toda la bomba Clave Descripción No de la pieza No de repuesto 1 Conmutador PS117 144P 2 Tornillo U30 955PS 3 Clip del cordón CC0030 13 4 Cordón eléctrico PS117 54 TSU 5 Caja del motor 6 Voluta superior PS1 28P 7 Tornillos U30 920SS 3 req 8 Impulsor PS5 22P 9 Empaquetadura de la voluta PS20 19 10 Placa de base PS3 29P 11 Tornillo prisioneros U30 ...

Page 16: ...self For Sears professional installation of home appliances and items like garage door openers and water heaters 1 800 4 MY HOME 1 800 469 4663 Call anytime day or night U S A and Canada www sears com www sears ca Our Home For repair of carry in items like vacuums lawn equipment and electronics call or go on line for the location of your nearest Sears Parts Repair Center 1 800 488 1222 Call anytim...

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