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Craftsman 390.2521 Owner's Manual

Professional 1/2 hp shallow well water system.
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SEARS
OWNER'S
MANUAL
MODEL NO.
390.2521
CAUTION:
Read and Follow
All Safety Rulesand
Operating Instructions
Before First Use of
This Product.
Save This Manual For
Future Reference.
I:RI:IFTSMI:IN°
PROFESSIONAL
1/2 HP SHALLOW WELL
WATER SYSTEM
• Safety Instructions
• Installation
• Electrical
• Maintenance
• Repair Parts
Sears, Roebuck and Co., Hoffman Estates, IL 60179
U.S.A.
PRINTED
IN USA
Form No
F642-04075 (8/3/o4)

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   Summary of Contents for Craftsman 390.2521

  • Page 1

    Read and Follow All Safety Rulesand Operating Instructions Before First Use of This Product. Save This Manual For Future Reference. Sears, Roebuck and Co., Hoffman Estates, IL 60179 PRINTED IN USA I:RI:IFTSMI:IN° PROFESSIONAL 1/2 HP SHALLOW WELL WATER SYSTEM • Safety Instructions •...

  • Page 2

    MAINTEN?O,rCE HELPFUL HINTS TROUBLESHOOTING GUIDE REPAIR P.M/TS FULL Forone year from the date of purclmse, Sears w it1repalror replacewed pump, _ee of charge, ffdefecove _ _ UMITED WARRANTY After one yezr and throughthree years from dxedate ofp_ FULL FIVE YEAR Forf_'e yearnfrom date o_purctm_ Sears wdI repair_ replace die tank,free of c_, Tlm _xwamy does not cover repairs or replacementpartsnece-_a_-becauseof abuse or negligence, including_a_uretoin.staR, a d/ttst and olxtat¢...

  • Page 3

    TABLE I - Pump Performance NOTE: This system is designed for pumping depths of 20 feet or Jess. Pump Model Description 390.2521 1/2 HP S.W Jet BASIC TOOLS Plastic Pipe Installation Tools Pipe Wrenches Screwdriver Knife or Saw to Cut Plastic Pipe...

  • Page 4

    INSTALLATION Piping in the Well The Shallow Well Water System can be installed well, drilled well or with a driven point. well, a foot valve and strainer should priming. It should be installed five to ten feet below est level to which the water vdll drop while the pump erating (pumping...

  • Page 5

    1-1/4" 1-1/2" Up to 25 Ft. 25 to 50 Ft. Discharge Pipe Sizes When the pttmp is some distance from the house or point of water use, the discharge pipe size should be increased to reduce pressure losses caused by friction. 1"...

  • Page 6

    Disconnect power Motor Switch Settings ff the motor can operate at either 115 or 230 volts, it is set at the factory to 230 volts. Do not change motor voltage setting if line voltage is 230 volts, or if you have a single voltage motor.

  • Page 7

    NOTICE: Dual-voltage motors are factory volts. If necessary, reconnect the motor shown. Do not alter the wiring in single voltage Install, ground, wire, and maintain your pump ance with National Electrical Canadian Electrical Code (CEC), as applicable, local codes and ordinances that apply.

  • Page 8

    Lubrication It is not necessary to lubricate the pump motor beatings are lubricated for life. The mechanical seal in the pump is water lubricated and self-adjusting. Draining for Winter &WARNING] Risk of electric shock. before working on unit. Pump should be drained whenever it is disconnected...

  • Page 9

    ASSEMBLY OF PUMP AWARNING] Risk of electric shock. disconnect power before attempting pump or motor. Your Sears pmlap is designed for ease in servicing. repair or replacement of the motor pump and piping do not need to be disconnected turbed.

  • Page 10

    MAINTENANCE B. Wet outer edge of "O" Ring with detergent C. With finger pressure press into cavity. See Figure 9A. Polished inside of pump. If seat vdll not locate properly, cardboard washer over polished 3/4" standard pipe for pressing Figure 9A Figure 9B D.

  • Page 11

    TROUBLESHOOTING TROUBLE POSSIBLE Motor will not run 1. Disconnect switch is off 2. Fuse is blown 3. Starting switch is defective 4. Wires at motor are loose, disconnected, or wired incorrectly *5. Motor is wired incorrectry 6. Pressure switch contacts are dirty Motor runs hot and "1.

  • Page 12

    REPAIR PARTS Pump Only- Model 390.2521 16 17 26 _25 587 1193...

  • Page 13

    REPAIR PARTS Model 390.2521 1/2 HP J218-953C 1_-_ - 17351 -OOO9 WC78-41T L176-47P U9-399 U 109-6A J105-4OPE J1-39P C19-54SS U9-201 N32P-66 N34P-19 N76-29P J20-18 N 176-28PB N76-28P U37-673P U111-212T U9-226 N166-5P 21" U212-68T U30-742SS U30-542SS C4-42P 26A* C35-11 2782 L43-5C * Standard hardware item, may be purchased locally.

  • Page 14

    U31-446P U74-37H U19-55SS 6-i- • Not illustrated. i Standard hardware item, may be purchased locally. REPAIR PARTS Tank Only - Model 390.2521 REPAIR PARTS Qty. Used Tank Assembly (Includes Diaphragm, Elbow, Valve, Nuts, Washers, & Inlet Flange) Bag - Vinyl...

  • Page 16

    • Product Type • Model Number • Part Number • Part Description Sears, Roebuck and Co., Hoffman Estates, IL 60179 I:RRFTSMRN° PROFESSIONAL 1/2 HP SHALLOW WELL WATER SYSTEM For the repair or replacementpartsyou need Call7 am - 7 pm, 7 days a week...

Comments to this Manuals

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  • Jose Feb 16, 2016 05:46:
    Very helpful , the printing is not to clear ,I found the informatio​n I need .........W​iring diagrams would help,
  • Raul Nov 04, 2015 07:18:
    I want to know how to set preassure level on pump
  • Raul Nov 04, 2015 07:07:
    I want to know how to made ajutment to pressure setting on the pump.