Sears 390.304551 User manual

OWNER’S
MANUAL
MODEL NO.
390.304551
390.304611
390.304691
CAUTION:
Read and Follow
All Safety 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
• Service
• Repair Parts
PRINTED IN U.S.A.
SUBMERSIBLE
SUMP PUMP
Form No. F642-9612 (Rev. 12/6/96)
Model No. 390.304551 - 1/4 HP
CRAFTSMAN Model
No. 390.304611 - 1/3 HP CRAFTSMAN Model No. 390.304691 - 1/3 HP

2
CONTENTS
INTRODUCTION/WARRANTY..........................................2
SAFETY ...............................................................................2
INSTALLATION...................................................................3
ELECTRICAL .......................................................................4
SERVICE..............................................................................5
PARTS...............................................................................6-7
INTRODUCTION
Please read our instructions before you install and use your
new pump; this will help you obtain full value and good ser-
vicefromit. Itwillalso helpyouavoid needlessservicecosts
that result from causes we cannot control and cannot cover
in our warranty.
Carefully read and follow all safety instructions in this
manual or on pump.
This is the safety alert symbol. When you see this sym-
bol on your pump or in this manual, look for one of the
followingsignalwordsandbealerttothepotentialforpersonal
injury!
warnsabout hazards that will cause serious per-
sonal injury, death or major property damage if ignored.
warns about hazards that will or can cause seri-
ouspersonalinjury,deathormajorpropertydamageifignored.
warns about hazards that will or can cause
minor personal injury or property damage if ignored.
The word NOTICE indicates special instructions which are im-
portant but not related to hazards.
Electrically powered sump pumps normally give many years of
trouble-free service when correctly installed, maintained, and
used. However, unusual circumstances (interruption of power
to the pump, dirt/debris in the sump, flooding that exceeds the
pump’s capacity, electrical or mechanical failure in the pump,
etc.)maypreventyour pumpfromfunctioningnormally.To pre-
vent possible water damage due to flooding, consult your local
Sears store about installing a secondary sump pump or a DC
backup sump pump. See “Service”, Page 5, for information
about common sump pump problems and remedies.
1. To avoid risk of serious bodily injury and property damage,
read safety instructions carefully before installing pump.
2. Follow local and/or national plumbing and electrical codes
when installing pump.
3. To avoid fatal shocks, proceed as follows
if pump needs servicing:
A.Disconnect power to pump outlet box before
pulling pump cord plug. After plug is pulled, let pump
cool for 20 minutes before attempting to work on it.
Modern motors are designed to operate at high tempera-
tures.
B. Take extreme care when changing fuses. To reduce
the chance of fatal electrical shocks, DO NOT stand in
water or put your finger in the fuse socket.
C.Ground the electrical outlet box.
D.Use only a Ground Fault Circuit Interrupter (GFCI)
protected grounded outlet for cord plug.
4. Never run pump dry. To do so can damage internal parts,
overheat the pump (which can cause burns to people han-
dling or servicing the pump), and will void the warranty!
5. DO NOT attempt to oil the pump motor. A special oil has
been put into the motor housing at the factory; use of any
otheroilwillvoid thewarrantyandcoulddamage the pump.
6. This pump is recommended for use in permanent installa-
tions only. Pump water only with this pump.
ADDITIONAL INSTALLATION
MATERIALS
SEARS Sump/Utility Pump Hose Kit, Stock No. 27909, con-
taining24'(7.3M) of1-1/4"flexibleplasticpipe, a1-1/4"plas-
tic adapter and a stainless steel clamp.
Check Valve, SEARS Stock No. 2789.
FULL ONE YEAR WARRANTY ON SEARS SUBMERSIBLE SUMP PUMPS
During the first year after the date of purchase, Sears will repair or replace this pump, free of charge, if defective in materials or
workmanship.
This warranty does not cover repairs on replacement parts necessary because of abuse or negligence including failure to in-
stall, adjust and operate this pump according to the instructions in the owner’s manual.
LIMITED WARRANTY ON CRAFTSMAN SUBMERSIBLE SUMP PUMPS
During the second year after the date of purchase, Sears will furnish, free of charge, a replacement part for any defective part.
You pay for labor. LIMITATION OF LIABILITY
SEARSWILLNOTBELIABLEFOR LOSS OR DAMAGE TO PROPERTYORANYINCIDENTALORCONSEQUENTIALLOSS
OR EXPENSE FROM PROPERTY DAMAGE DUE DIRECTLY OR INDIRECTLY FROM THE USE OF THIS PRODUCT.
Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclu-
sion may not apply to you.
WARRANTY SERVICE IS AVAILABLE BY SIMPLY CONTACTING THE NEAREST SEARS SERVICE CENTER/DEPART-
MENT IN THE UNITED STATES of AMERICA. For service outside the U.S.A., contact your local Sears Service Center or store.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
Sears, Roebuck and Co., Dept. 817 WA, Hoffman Estates, IL 60179
RULES FOR SAFE INSTALLATION AND OPERATION

INSTALLATION
THE SUMP
The sump should be located at the lowest place in the base-
ment or area to be drained. Floor drains from other areas in
the basement may be tiled into the sump. Drain tile around
a house foundation can also be tiled into the sump, effec-
tively removing water and relieving pressure from this area.
Asuitable sump can be a 20" or 24" (500-610mm) sewertile.
The minimum size is 12" (305mm) in diameter for Models
390.304551 and 390.304611; 10” (254mm) for Model
390.304691.
A sump cover is desirable to exclude refuse from the sump.
Consult local code for sump cover specifications.
NOTICE: Periodically inspect pump, system components,
and sump for debris and foreign objects. Keep sump free of
all refuse. Perform routine maintenance as required.
PUMP INSTALLATION
Set the pump on the bottom of the sump, making sure that
is 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. Pump should not be installed on
clay, earth, or sand surfaces.
Risk of flooding. If a flexible discharge hose
isused,pump maymovearound insumpwhen motorstarts.
If it moves far enough so that the switch hits the side of the
sump,theswitch maystickand preventpumpfrom starting.
Make sure that pump is secured so that it cannot walk
around in sump.
Hose Kit No. 27909 includes 1-1/4" flexible plastic pipe for
the discharge pipe. Run discharge pipe to the nearest sewer
outlet or other point of disposal. Use the most direct route
and the fewest turns and elbows possible. Make sure that
pump cannot move around in sump pit.
Use teflon tape to seal threads in plastic pipe. Hand tighten
only.
NOTE: To avoid backflow into sump when pump shuts off,
installaSEARS CheckValve,Stock No.2789,in threadeddis-
charge port of pump. Be sure arrow on check valve body
points away from the pump. This Sears check valve is
equippedwithan airbleedhole topreventairlocking pump.
If using any other check valve, drill 1/8” (3.2mm) hole in
dishcharge pipe just above pump body but below check
valve to prevent air locks.
FLOAT SWITCH
INSTALLATION AND OPERATION
(Models 390.304551 and 390.304611;
For Model 390.304691, see Page 7)
The automatic float switch is factory mounted on the pump
and preset for a pumping range of approximately 7". Tether
length is factory preset at 3-1/2" (89mm) (see Figure 3). Do
not change tether length.
Be sure automatic float can swing freely through its entire
arc without interference from pump, piping, sump wall or
any other object.
When sump is dry, the watertight automatic float switch is
hanging in a downward position and the pump is off.
As water comes into the sump, the automatic float switch
rises to an upward position and the pump starts.
Water will continue to be pumped until the float switch is
hanging in the downward position again, when pump will
stop.
Risk of electric shock. Before installation,
check your local electrical codes. To avoid personal injury
when servicing your pump, be sure that the power is dis-
connected from both the pump and the float switch.
To check operation, fill sump with water and observe oper-
ation through one complete cycle.
DO NOT ALLOW PUMP TO RUN DRY
Pump should not be allowed to run dry prior to shutting off.
To do so voids the warranty and could ruin the pump.
3
Sewer Tile
Concrete
Sewer Tile
Sump Cover Basement Floor
1/4" (6mm)
24" Min.
(610mm)
20" to 24"
(500 to 610mm)
20" to 24" Diam.
(500 to 610mm)
FIGURE 1
Foundation
Footing
Drain
Check
Valve
Auto
Float
Switch
Grounded
Electrical
Outlet
Make sure
pump cannot
move in sump
1472 0195
FIGURE 2 – Models 390.304551 and 390.304611
31/2"
(89mm)
FIGURE 3 – Tether Length

ELECTRICAL
ELECTRICAL CONNECTIONS
Risk of electric shock. This pump is sup-
plied with a grounding conductor and grounding-type
attachment plug. To reduce the risk of electric shock,
be certain that it is connected only to a properly
grounded, grounding-type receptacle.
TheSumpPump hasa3-prong electricplug.The thirdprong
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.
A separate 15 amp branch 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
4A). A Circuit Analyzer will tell you by a pattern of lights if
the power, neutral, and ground wires are correctly con-
nectedto your outlet. It can also be used tocheck other out-
lets in your home. A Circuit Analyzer is available in the Sears
Electrical Department.
Grounding Outlet
If your outlet is not grounded, install a copper wire (at least
14 gauge) from the outlet box, as shown in Figure 4B, to a
metal cold water pipe. Use ground clamp on pipe.
IMPORTANT: The cold water pipe you use as a ground
must have metal continuity to electrical ground. If continu-
ity is interrupted by plastic, rubber, or other electrical insu-
lators; such as hoses, fittings, washers or gaskets (including
water meter or pump), a metal bypass must be used. Any
electricallyinsulatedconnector shouldbejumped (asshown
in FIgure 4C), with a length of No. 4 wire clamped securely
at both ends.
Automatic Thermal Overload Protection
This pump motor has a built-in automatic thermal overload
protector. If the motor overheats, the protector will open
and cut off power to the motor before the heat damages it
internally. The overload will reset automatically and the
pumpwillrestart afterthepump coolsdownbelow thedan-
ger point.
DO NOT attempt to work on the pump or
motor if the overload seems to have tripped. The
motor may restart without warning at any time. You
could be injured and the pump damaged if it starts
when you are working on it. Remove all power from
pump before attempting to work on it.
DO NOT attempt to repair 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 re-
quired to power this pump motor. Any additional loads,
such as lights, must be added to the listed load and the gen-
erator sized accordingly.
Pump Minimum Watt
Model HP Rating of Generator
390.304551 1/4 3000
390.304611 1/3 4500
390.304691 1/3 4500
4
UL Listed
Analyzer Outlet
Face Plate Outlet
Outlet
Box
Bare Copper Wire
to Cold Water Pipe
Face
Plate Screw
No. 4
Wire
Clamp
Metal Water Pipe Meter
Clamp
FIGURE 4A
FIGURE 4B
FIGURE 4C

SERVICE
General
Risk of electric shock. When servicing
pump always disconnect power to electrical outlet
and remove pump electric cord from outlet.
1. If pump does not operate:
a. Check for loose plug at electric outlet.
b.Check for blown fuses or tripped circuit breakers at
fuse box/circuit breaker box.
c. Be sure nothing interferes with action of automatic
float switch.
d. If a, b, and c above check OK, plug in a light that you
know works. If it lights, take your pump to Sears for
service. If it doesn’t light, the electrical circuit is faulty;
consult a licensed electrician.
2. Pump starts, but blows fuses/trips circuit breakers:
After disconnecting power to pump, remove it from
sump. Remove the plate from the bottom of the pump
and make sure that the impeller turns freely. Remove any
debris obstructing impeller. If pump still does not oper-
ate correctly, return it to your nearest Sears Service
Department for repairs.
3. Pump runs, but does not empty sump:
a. Clean pump intake screen.
b.Water may be entering sump faster than the pump can
discharge it.
c. Be sure vertical distance from pump discharge outlet
todischargepipeoutletdoesnotexceedspecifications.
See chart below.
d. Be sure discharge pipe is not plugged or frozen.
e. Be sure check valve is operating correctly.
Risk of electric shock. Unplug pump be-
fore attempting to service or remove any component.
1.The motor in the unit is sealed in oil. No additional lubri-
cation is necessary.
2.NOTICE: Disassembly of the motor assembly will void
warranty.Itmightalso cause internalleakageanddamage
to the unit. If motor fails, replace entire pump.
3.Keep inlet screen clean and free of all foreign objects.
Pump Cleaning
1.NOTICE: Attempting to disassemblemotor willvoidwar-
ranty.
2.Tocleanimpeller, remove eightscrewsholdingbaseplate
to motor assembly. Clean/replace impeller as necessary.
To remove impeller, unscrew it from motor shaft.
3.Re-install baseplate and screws.
FLOAT SWITCH REPLACEMENT
(Models 390.304551 and 390.304611;
For Model 390.304691, see Page 7)
NOTICE: Float must be able to swing through its complete
arc without interference from sidewall of sump, plumbing
or any other object.
1. Unplug pump power cord from receptacle.
2. Remove tether clamp screw and slide cord from clamp.
Unscrew tee-handle from pump body.
3. Insert new cord in tether clamp in same location on cord
with respect to float. Install tee-handle in pump and
tighten.
4. Tighten tether clamp screw.
5. Check sump pump operation by filling sump with water
and observing operation through one complete cycle.
Failure to check installation with water
in sump can lead to improper operation, premature
pump failure and flooding.
5
Stock Maximum Dimensions in inches (mm) GPM (L/min.) at Vertical Pumping Distance in Feet (M)
Number HP Amps Length Width Height 5'(1.6) 10'(3) 15'(4.6) 18'(5.5) 20'(6.1)
30455 1/4 8.5 8-1/2"(216) 8-1/2"(216) 9-3/4"(248) 38(144) 27(102) 11(41.6) – –
30461 1/3 13.0 9"(229) 6-1/2"(165) 11-1/2"(292) 50(189) 41(155) 28(106) 15(57) 3(11.4)
30469 1/3 13.0 9"(229) 6-1/2"(165) 11-1/2"(292) 50(189) 41(155) 28(106) 15(57) 3(11.4)
SPECIFICATIONS

6
1473 0195
1
2
3
4
5
6
7
8
9
REPAIR PARTS
Sears Submersible Pump Craftsman Submersible Pump
Model 390.304551 Model 390.304611
Key 30461 Part
No. Part No. Description
1U30-956ZP Baseplate Screw #8 x 1/2 Type A (8 Req.)
2PS4-17P Baseplate
3 RP0000911A Impeller
4 PS1-29P Volute
5 ** Motor Assembly Complete
6 CC0030-13 Cable Clamp
7 U30-955SS Cable Clamp Screw #8 x 5/8 Type A
8 U30-912PS Screw (4 Required)
9 PS17-67 Float Switch
• F642-9612 Owner’s Manual
Key 30455 Part
No. Part No. Description
1U30-956ZP Pump Body Screw #8 x1/2 Type A (7 Req.)
2PS1-30P Lower Pump Body
3 RP0000917 Impeller
4 U30-912PS Screw, Motor Housing (4 Required)
5 PS1-32P Upper Pump Body
6 ** Motor
7 CC0030-13 Cable Clamp
8 U30-955SS Cable Clamp Screw #8 x 5/8 Type A
9 PS17-68 Float Switch
• F642-9612 Owner’s Manual
PARTS LISTPARTS LIST
• Not illustrated ** If motor fails, replace entire pump.• Not illustrated ** If motor fails, replace entire pump.
To Order Parts in the U.S.A., Call
Sears Product Service, 1-800-366-7278 To Order Parts outside the U.S.A., Contact
Your local Sears Service Center or Store
5
6
4
3
2
1
7
8
9
1713 0395
283 1093A
Power Cord
P/N PS17-54
Float Switch
P/N PS217-62
Pump will have either Y-Cord arrangement
(item 9) or Power Cord / Switch arrangement
as shown above.

7
REPAIR PARTS
Vertical Switch Craftsman Submersible Pump
Assembly Model 390.304691
2713 1196
1
2
3
4
5
6
7
8
9
10
10
11
12
14
13
Key 30469 Part
No. Part No. Description
1U30-956ZP Baseplate Screw #8 x 1/2 Type A (8 Req.)
2PS4-17P Baseplate
3 RP0000911A Impeller
4 U30-912PS Screw (4 Required)
5 PS1-29P Volute
6 ** Motor Assembly Complete
7RP0005248 Float Stop
8 PS28-18 Float
9 PS28-17 Rod
10 U30-955SS
Clamp Screw #8 x 5/8 Type A (3 Req.)
11 PS19-18SS Bracket
12 PS30-3 Pin
13 PS17-66 Switch Housing
14 PS17-53 Power Cord and Plug
• F642-9612 Owner’s Manual
PARTS LIST
• Not illustrated ** If motor fails, replace entire pump.
To Order Parts outside the U.S.A., Contact
Your local Sears Service Center or Store
Pin
Float
Rod
1
2
4
5
6
3
018 0893
Make sure pin holds float rod in switch
housing; otherwise pump will not shut off.
To check switch operation, run pump through one com-
plete cycle after installation.
Risk of electrical shock. Can burn or kill.
Plug pump and switch into a grounded electrical outlet
only.
Assembly Sequence

For the repair or replacement parts you need
Call 7 am - 7 pm, 7 days a week
1-800-366-PART
(1-800-366-7278)
For in-home major brand repair service
Call 24 hours a day, 7 days a week
1-800-4-REPAIR
(1-800-473-7247)
For the location of a
Sears Repair Service Center in your area
Call 24 hours a day, 7 days a week
1-800-488-1222
For information on purchasing a Sears
Maintenance Agreement or to inquire
about an existing Agreement
call 9 am - 5 pm, Monday-Saturday
1-800-827-6655
MAINTENANCE
AGREEMENT
America's Repair Specialists
REPAIR SERVICES
America's Repair Specialists
REPAIR SERVICES
America's Repair Specialists
REPAIR SERVICES
OWNER’S
MANUAL
Model No.
390.304551
390.304611
390.304691
The model number of
your Submersible Sump
Pump will be found on a
plate attached to the side
of the motor.
When requesting service
or ordering parts, always
give the following
information:
• Product Type
• Model Number
• Part Number
• Part Description
Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.
SUBMERSIBLE
SUMP PUMP