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CRAFTSMAN 390.253251 Owner's Manual

Multi-stage jet pump.
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Read and Follow
All Safety Rulesand
Operating Instructions
Before First Use of
This Product.
Save ThisManual For
Future Reference.
• Safety Instructior_
• Installation
• Electrical
• Operation
• Maintenance
• Repair Parts
Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.
Form No,
(Rev. 716/98)


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   Summary of Contents for CRAFTSMAN 390.253251

  • Page 1

    SEARS OWNER'S MANUAL MODEL NO. 390.253251 CRRFTSMRN° CAUTION: MULTI-STAGE JET PUMP Read and Follow All Safety Rulesand Operating Instructions • Safety Instructior_ Before First Use of • Installation This Product. • Electrical Save ThisManual For • Operation Future Reference. • Maintenance •...

  • Page 2

    CONTENTS INTRODUCTION INTRODUCTION/WARRANTY ........Please read our instructions before installing and using MAJOR COMPONENTS ..........your Deep Well Jet Pump. This will help you obtain full benefits of the quality and convenience built into PUMP PERFORMANCE ..........this equipment. It will also help you avoid any needless INSTALLATION ............

  • Page 3

    MAJOR COMPONENTS AND WHAT THEY DO Tank and Air Volume Control Adapter Flange The tank serves two functions: The VMS pump is equipped with an adapter flange. This adapter facilitates installation and removal of the It provides a reservoir of water. Some of this water pump without disturbing...

  • Page 4

    PUMP PERFORMANCE Multi-Stage Pump Pump Performance (in gallons per minute) Pump Discharge Pumping Depth In Feet Stock Pkg. Pressure P.S.I. 11.3 10.0 29670* 10.6 390.253251 11.7 11.1 10.2 29902"*t 11.0 11.7 11.1 10.2 29660*** 11.0 Use 160 PSI Min. Rating Plastic Pipe.

  • Page 5

    INSTALLATION Do not use on shallow wells! (25 feet or less in depth) !1:T ,hltl Deep well is more Use New Pipe for Best Results. than 25' (7.6M) to water with pump running. Clean Rowl Well _ 1O960697 From Casing _ Well Foot - -._._ Figure I - No Dirt or Scale in Suction Pipe...

  • Page 6

    DEEP WELL INSTALLATION FOR DOUBLE PIPE Priming Gasket Tee and Gasket Suction: 1-1/4" Coupling Drive: Pipe or Plastic Seal 1-1/4" Pipe Pipe Adapter orPipe Plastic 1" Plastic Drive Pipe Drive Pipe 1-1/4" 1-1/4" Plastic Suction Pipe Plastic Pipe 1-1/4x1" Adapter. (Supplied with Ejector) Face Bushinc 1"...

  • Page 7

    DEEP WELL INSTALLATION FOR SINGLE PIPE Pump mounted on Casing Adapter "%_ Pipe Clamp Water level serves Pipe Clamp. with pump Drive Pipe Pipe Figure I 0A - Use tripod and lever hoist to lower pipe into the well 10 to 20 Feet Leathers 5 Feet or more...

  • Page 8

    PRESSURE TANK CONNECTION Air Volume Control lANK To Service Sears Stock No. 2761 _"_ " TANK _._lb Pressure f_"-tax _, J Regulator Pump to Tank Piping I1._. I_ (J_ 1" Discharge --_ _"_- ,_j/j Relief Valve Sears._-*_!_ Stock No. 27229 _j_-,_._ "v,,,.Pressure AVC Fitting...

  • Page 9

    ELECTRICAL Disconnect power before working on pump, motor, pressure switch, or wiring. Your Motor Terminal Board (under the motor end cover) ff line voltage is 230 Volts or if you have a single voltage and Pressure Switch look like one of those shown below, motor.

  • Page 10

    ELECTRICAL / OPERATION WIRING CHART - Recommended Wire and Fuse Sizes MOTOR MAX. LOAD BRANCH FUSE* DISTANCE IN FEET FROM MOTOR TO METER VOLTS AMPS RATING (AMPS) 0to50 51 to 100 101to200 I 201 to300 115/230 19.2/9.6 25/I 5 10/14 10/12 8/10 6/10...

  • Page 11

    OPERATION I MAINTENANCE There are conditions of deep well operation when Using the Compound Gauge the regulator valve may be completely open with- If the pump or system seems to be operating ineffi- out any faltering of pressure. In this case, operate ciently, the compound gauge can sometimes help de-...

  • Page 12

    MAINTENANCE Hold the motor shaft with pliers or vice grips Pump Diassembly through the opening in the pump adapter. Unscrew Pull disconnect switch. Disconnect power lines the impeller nut off the end of the shaft (see Figure from pressure switch. 20).

  • Page 13

    MAINTENANCE 11. Remove the intermediate volute and slide the im- Carefully slide the adapter over the shaft (see Figure 24). Do not damage the shaft sealing surface; peller spacer off of the shaft. it is highly polished and any slight scratches or nicks 12.

  • Page 14

    MAINTENANCE Install the intermediate volute, aligning it with the 12. Insert the four base capscrews and tighten evenly mark made before disassembly. Use the long cap (see Figure 26). These should be easy to install if ev- screws to check this alignment.

  • Page 15

    TROUBLESHOOTING CHART SYMPTOM POSSIBLE CAUSE(S) CORRECTIVE ACTION 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, discon- 4.

  • Page 16

    REPAIR PARTS Multi-Stage Jet Pump .14C --12 _--18 1281 0994 Pressure Regulator 2O8O1095...

  • Page 17

    REPAIR PARTS Repair Parts List - Multi-Stage Part Part Number Description J218-600C Motor L43-5C Connector U36-112ZP Locknut- 1t2" U217-1228 Pressure Switch U37-672P Switch Tube - 14-1/2" J212-24A Pressure Regulator Assembly L2-16 Adapter U30-75ZP Capscrew - 3/8"-16x1-1/4" Lg. (2 Req.) U65-15SS Shaft Key (2 Req.) U 109-99 Seal- Shaft...

  • Page 18

    REPAIR PARTS Vertical Casing Adapters and Adapter Flanges To Order Parts, for Multi-Stage Jet Pump Call Sears Product Service, 1-800-366-7278 489 0194 Adapter Flange Casing Adapter Repair Parts List - Adapter Flange Part Number Part Description J20-12 Adapter Gasket J2-17B Adapter- 1-1/4")(1-1-1/4"...

  • Page 19

    REPAIR PARTS Jet Packages 2" and 3" Single Pipe Jets 4" Double Pipe Jets Suction Pipe Drive Seal pple Well Pipe Adapter 1_11094 Repair Parts List- Jet Packages 1_o 10Q4 29670 29902 29660 4" Double Part 2" Single 3" Single Pipe Jets Pipe Jets Description...

  • Page 20

    OWNER'S CRRFTSHRN ° MANUAL MULTI-STAG JET PUMP Model No. 390.25325ol Forthe repair or replacementparts youneed Call7 am - 7 pro,7 daysa week 1-8OO-366-PART (1-800-366-7278) Forin-lwmemajorbrandrepairservice Call24 hoursa day,7 daysa week 1-8OO-4-REPAIR (1-800-473-7247) The modelnumberof your Multi-Stage Jet Fw the locationof a Pumpwill be found on SearsRepairServiceCenterin yourarea the pump body.

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