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CONTENTS

Safety ..............................................................................................2

Warranty/Introduction...................................................................3

Pump Performance ........................................................................3

Major Components......................................................................3-4

Piping .............................................................................................4

Electrical.........................................................................................5

Installation......................................................................................6

Operation .......................................................................................6

Maintenance ................................................................................7-8

Helpful Hints ..................................................................................8

Troubleshooting Guide ..................................................................9

Repair Parts .............................................................................10-11

INTRODUCTION

We suggest you take a few minutes to read the instructions con-
tained in this manual before installing and using your pump. This
will help you obtain the full benefits of the quality and convenience
built into this equipment. It will also help you avoid any needless
service expense resulting from causes beyond our control which
naturally cannot be covered in our warranty.

1. Read the Owners Manual and Rules for Safe Operation and

Installation Instructions carefully. Failure to follow these Rules
and Instructions could cause serious bodily injury, and/or prop-
erty damage.

2. Check your local electrical wiring codes before installation. If

your local codes are not followed, your pump will not work to
its full rated capacity. If in doubt, contact your local Power
Company.

3. Be certain your pump installation meets all local plumbing,

pump and well codes.

4. While installing the pump, always keep the well covered to pre-

vent leaves and foreign matter from falling into the well and con-
taminating the water and/or causing possible serious damage to
the mechanical operation of the pump.

5. Always test the well water for purity before using. Check with

local health department for testing procedure.

6. Before installing or servicing your pump, BE CERTAIN pump

power source is disconnected.

7. Be sure your pump electrical circuit is properly grounded.

8. Complete pump and piping system MUST be protected against

below freezing temperature. Failure to do so could cause severe
damage and voids the Warranty.

9. Make sure the line voltage and frequency of the electrical circuit

supply agree with the motor wiring. If motor is dual voltage
type, BE SURE it is wired correctly for your power supply.

10. The correct fusing and wiring sizing is essential to proper motor

operation. Recommended fusing and wire size data is in the
manual.

MAJOR COMPONENTS AND WHAT
THEY DO

NOTICE:

Use Teflon tape supplied with the pump for making all

threaded connections to the pump.

Impeller and Jet

Impeller turns with motor shaft, causing water to fly out from its
rim by centrifugal force. Impeller rotation creates a vacuum which
pulls in more water. Part of the water is diverted back to the jet

where it passes through the nozzle and venturi. This creates more

vacuum to draw in more water.

In shallow wells (less than 20 feet deep), the vacuum created at the

pump is enough to pull water to the pump. Therefore, the jet as-

sembly is built into the pump.

Air Volume Control

The air volume control (AVC) maintains the cushion of air in

Standard tanks. 

FULL ONE YEAR WARRANTY ON CRAFTSMAN

®

WELL PUMPS

For one year from the date of purchase, Sears will repair or replace this pump, free of charge, if defective in material or workmanship.

LIMITED WARRANTY ON CRAFTSMAN

®

PROFESSIONAL HYDROGLASS

®

WELL PUMPS

After one year and through three years from the date of purchase, Sears will furnish, free of charge, a replacement part for any defective part.
You pay for labor.

LIMITED WARRANTY ON CRAFTSMAN

®

HYDROGLASS

®

WELL PUMP

After one year and through two years from the date of purchase, Sears will furnish, free of charge, a replacement part for any defective part. 
You pay for labor.
This warranty does not cover repairs or replacement parts necessary because of abuse or negligence including failure to install, adjust and 
operate this pump according to the instructions in the owner’s manual.

LIMITATION OF  LIABILITY

SEARS WILL NOT BE LIABLE FOR LOSS OR DAMAGE TO PROPERTY OR ANY INCIDENTAL OR CONSEQUENTIAL LOSS 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 exclusion may not apply
to you.
WARRANTY SERVICE IS AVAILABLE BY SIMPLY CONTACTING THE NEAREST SEARS SERVICE CENTER/DEPARTMENT IN THE UNITED
STATES.
This warranty applies only while the product is in use in the United States.
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

MAJOR COMPONENTS / PIPING

Summary of Contents for CRAFTSMAN 390.251482

Page 1: ...g 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 Operation Troubleshooting Repair Parts PRINTED IN U S A PROFESSIONAL HYDROGLASS SHALLOW WELL JET PUMP Form No F642 9803 Rev 6 5 98 ...

Page 2: ... burn or cause death Ground pump before connecting to power supply Hazardous pressure Install pressure relief valve in discharge pipe Release all pressure on system before working on any component Periodically inspect pump and system components Wear safety glasses at all times when working on pumps Keep work area clean uncluttered and properly lighted store properly all unused tools and equipment ...

Page 3: ...DO NOTICE Use Teflon tape supplied with the pump for making all threaded connections to the pump Impeller and Jet Impeller turns with motor shaft causing water to fly out from its rim by centrifugal force Impeller rotation creates a vacuum which pulls in more water Part of the water is diverted back to the jet where it passes through the nozzle and venturi This creates more vacuum to draw in more ...

Page 4: ... to guard against power failure is a good idea If you install an engine generator set for emergency backup power for your pump supply the generator set manufacturer with the nameplate data from the pump motor He will then be able to provide a gen erator of the correct size to power your pump Also be sure to add the load from any other accessories such as lights that may be on the same circuit Hori...

Page 5: ...URE 4 Motor wiring connections through Pressure Switch Match motor voltage to line voltage Your Motor Terminal Board under the motor end cover and Pressure Switch look like one of those shown below Convert to 115 Volts as shown Do not change motor wiring if line voltage is 230 Volts or if you have a single voltage motor Connect power supply as shown for your type of switch and your supply voltage ...

Page 6: ...n threaded fittings in the plastic pump If leaks do occur remove the fitting replace the Teflon tape and rewrap with 1 1 2 to 2 turns of Teflon tape and remake the connection 2 Independently support all piping connected to the Hydroglass Pump OPERATION Priming the Pump NEVER run pump dry Running pump without water may overheat unit damaging seals and possibly burning per sons handling pump NEVER r...

Page 7: ...ut side with plastic mallet This will insure proper seating of O Ring and clamp E Assemble base mounting bolts Connect pressure switch tub ing and close draincock F Prime pump and turn on power REMOVING MOTOR FOR SERVICE AND REPLACING SHAFT SEAL If it is necessary to remove motor always replace the shaft seal We suggest you purchase this item U109 6A and have it on hand for future use NOTICE The s...

Page 8: ...le proceed as follows 1 Disassemble pump per instructions on Page 7 2 Turn venturi counterclockwise and remove it The nozzle is now exposed Remove it using a 5 8 hex socket wrench with extension Turn counterclockwise If socket wrench is not avail able insert an ice pick or similar pointed tool carefully into the nozzle This will dislodge debris 3 Flush out the debris by running water through the n...

Page 9: ...plastic pipe where possible otherwise with point 3 immediately limed causing excess friction new steel pipe above 3 Offset piping is too small in size 3 Use larger offset piping Pump pumps water 1 Pressure switch is out of adjustment 1 Adjust or replace pressure switch but does not shut off or contacts are frozen 2 Faucets have been left open 2 Close faucets 3 Jet or impeller is clogged 3 Clean je...

Page 10: ...er 8 J1 39P J1 39P Diffuser 9 U30 542SS U30 542SS Screw 8 32 x 7 8 5 Required 10 C19 54SS C19 54SS Clamp Tank Body 11 U9 201 U9 201 O Ring Venturi 1 3 8 x 1 1 8 x 1 8 12 N32P 66 N32P 66E Venturi 13 N34P 19 N34P 17 Nozzle 14 N76 29P N76 29P Insert 15 J20 18 J20 18 Gasket 16 N176 28PB N176 28PC Tank Body Assembly Front Half Includes Key No 11 12 13 14 15 19 20 and 23 17 U37 673P U37 673P Switch Tube...

Page 11: ...15 16 17 18 19 20 21 22 23 24 25 25A 26 27 28 29 766 1194 To Order Parts in the U S A Call Sears Product Service 1 800 366 7278 To Order Parts outside the U S A Call Your local Sears Service Center or Store 1A L1 L2 1B 1C 1D 1E Wiring omitted for clarity ...

Page 12: ...ll 9 am 5 pm Monday Saturday 1 800 827 6655 M A I N T E N A N C E A G R E E M E N T America s Repair Specialists REPAIRSERVICES America s Repair Specialists REPAIRSERVICES America s Repair Specialists REPAIRSERVICES Sears Roebuck and Co Hoffman Estates IL 60179 U S A OWNER S MANUAL MODEL NO 390 251482 390 251882 The model number of your Shallow Well Jet Pump will be found on the pump body When req...

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