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Sears 390.250095 Owner's Manual

1/2 hp shallow well water system
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OWNER'S
MANUAL
MODEL NO.
390.250095
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.
PRINTED IN U.S.A.
1/2 HP SHALLOW WELL
WATER SYSTEM
• Safety Instructions
• Installation
• Electrical
• Maintenance
• Repair Parts
F642-9608
Form No.
(Rev. 7/16/97)

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Summary of Contents for Sears 390.250095

  • Page 1 Before First Use of • Safety Instructions This Product. • Installation Save This Manual For • Electrical Future Reference. • Maintenance • Repair Parts Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A. PRINTED IN U.S.A. F642-9608 Form No. (Rev. 7/16/97)

  • Page 2: Table Of Contents

    ® 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 well pump according to the instructions in the owners manual.

  • Page 3: Pump Performance

    Pump Performance (In Gallons per Minute) NOTE: This system is designed for pumping depths of 20 feet or less. Pumping Depth in Feet Pump Discharge Model Description Suct. Disch. Pressure PSI 5’ 10’ 15’ 20’ 390.250095 1/2 HP S.W. Jet 1-1/4” 3/4”...

  • Page 4: Major Components

    INSTALLATION WHAT THEY DO Piping in the Well The Sears 1/2 HP Shallow Well Water System can be in- Impeller and Jet stalled on a dug well, cased well or with a driven point. Impeller turns with motor shaft, causing water to fly In a dug or cased well, a foot valve and strainer should out from its rim by centrifugal force.
  • Page 5 INSTALLATION 1. Wrap male pipe threads being attached to pump In areas where the temperature is high for long peri- with one or two layers of Teflon tape. Cover entire ods of time, the tank pre-charge pressure may increase. threaded portion of pipe. This may reduce the tank drawdown (amount of water available per cycle).

  • Page 6: Electrical

    ELECTRICAL Risk of serious or fatal Disconnect power at service panel electrical shock. before connecting pressure switch. Connect motor ground Motor wires are connected wire before connecting to these two To convert from brass screws. 230 to 115 Volts: power supply wires. Move white wire w/black tracer Do not ground to a gas sup-...

  • Page 7: Maintenance

    ELECTRICAL Table II Wiring Chart Recommended Wire and Fuse Sizes Distance in Feet from Motor to Meter Branch 0’ 101’ 201’ 301’ 401’ Max. Fuse* Motor Load Rating 100’ 200’ 300’ 400’ 500’ Horsepower Volts Amps. Amps Wire Size MAINTENANCE Lubrication B.
  • Page 8 A. Remove screws holding diffuser. Your SEARS pump is designed for ease in servicing. Should B. Loosen two screws and remove motor canopy from repair or replacement of the motor or seal be needed, the motor (Key No.
  • Page 9 MAINTENANCE 3. Remove seal plate from motor by inserting two screw- drivers between the seal plate and the motor flange. Pry seal plate off motor flange. This will force rotating portion of seal off shaft. NOTE: Be sure you do not scratch shaft! See Figures 5 &...
  • Page 10 MAINTENANCE I. Screw impeller on shaft (clockwise) while holding shaft with 7/16” open end wrench on shaft flats. This will automatically locate seal in place. See Figure 9. Figure 11 Installing Copper Insert Figure 9 NOTE: If the copper insert (Key No. 4, Page 12) moves or shifts during seal removal, it should be removed and rein- J.

  • Page 11: Helpful Hints

    MAINTENANCE / HELPFUL HINTS Cleaning Shallow Well Jet To remove debris from venturi or nozzle, proceed as fol- Wipe on small amount of non-hardening Permatex lows: on this surface 1. Disassemble pump per instructions on Page 8. 2. Turn venturi counterclockwise and remove it. The noz- zle is now exposed.

  • Page 12: Repair Parts

    REPAIR PARTS SEARS 1/2 HP SHALLOW WELL WATER SYSTEM (Pump Only) Model 390.250095 Wiring omitted for clarity Port 2305 0296 To Order Parts in the U.S.A., Call To Order Parts outside the U.S.A., Call Sears Product Service, 1-800-366-7278 Your local Sears Service Center or Store...
  • Page 13 REPAIR PARTS Model 390.250095 1/2 HP Qty. Part Number Used Description J218-953C Motor - 115/230V U18-1103 Overload U18-1180 Terminal Board U18-1098 Contactor U18-128 Governor C69-2 Water Slinger N203-12P Seal Plate Assembly J3-2 Seal Plate Insert U9-390 O-Ring 2784 Shaft Seal...
  • Page 14 REPAIR PARTS SEARS 1/2 HP SHALLOW WELL WATER SYSTEM (Tank Only) Model 390.250095 2433 0596 REPAIR PARTS Model 390.250095 1/2 HP Qty. Used Description Part Number U231-285-S Tank Assembly (Includes Diaphragm, Valve, Nuts, & Inlet Flange) • U20-7 Bag - Vinyl •...
  • Page 15 TROUBLESHOOTING GUIDE TROUBLE POSSIBLE CAUSES REMEDIES Motor will not run 1. Disconnect switch is off 1. Be sure switch is on 2. Fuse is blown 2. Replace fuse 3. Starting switch is defective 3. Replace starting switch 4. Wires at motor are loose, 4.
  • Page 16 Maintenance Agreement or to inquire about an existing Agreement call 9 am - 5 pm, Monday-Saturday • Product Type 1-800-827-6655 • Model Number • Part Number • Part Description REPAIR SERVICES America's Repair Specialists Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.

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