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Craftsman 390.251883 manual

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Table of contents for the manual

  • Page 1

    SEARS OWNER'S MANUAL MODEL NO. 390.251483 390.251883 CAUTION: Readand Follow All SafetyRules and Operating Instructions Before First Use of This Product. Save This Manual For Future Reference. CRRFTSMRN ° PROFESSIONAL "HYDROGLASS ''® SHALLOW WELL JET PUMP • Safety Instructions • Installation • Operation • Troubleshooti[...]

  • Page 2

    READ AND FOLLOW SAFETY INSTRUCTIONS! This is the ,safety alert symbol. When you see this sTmbol on your pump or in this manual, look for one of the following signal words and be alert to the potemial for personal injury: DANGER warns about hazards that will cause serious personal injury, death or major property damage L _ignored. WARNING warns abou[...]

  • Page 3

    CONTENTS Safety .............................................................................................. 2 Warranty/Introduction ................................................................... 3 Pump Performance ........................................................................ 3 Major Components ....................................[...]

  • Page 4

    MAJOR COMPONENTS / PIPING Pressure Switch The pressure switch provides automatic control. MODEL NO. PUMP STARTS AT PUMP STOPS AT 390.251483 40 PSI 60 PSI 390.251883 40 PSI 60 PSI Tank The tank serves two functions. It provides a reservoir of water, some of which can be drawn through the house fixture before the pump must start. It maintains a cushi[...]

  • Page 5

    ELECTRICAL ,_ Disconnect power before working on pump, motor, pressure switch, or wiring. Your Motor Terminal Board (under the motor end cover) and 230 Volts or if you have a single voltage motor. Connect power Pressure Switch look like one of those shown below. Convert to supply as shown for your type of switch and your supply voltage. 115 Volts a[...]

  • Page 6

    INSTALLATION / OPERATION INSTALLATION SEARS jet pumps should be used with Captive Air® Tanks (See Figure 5). TO SERVICE PRIMING PLUG PRESSURE t JET BUIL_I N pLASTIC pIPE* PLASlqC PiPE PUMP TO T ANK SIDE VIEW ta.kfiffingskiL FIGURE 5 For mounting pump to tank, purchase tank fittings Kit No. 2788. SEARS Captive Air* Tanks are pre-charged at the fact[...]

  • Page 7

    SERVICE MAINTAINING YOUR PUMP Lubrication It is not necessary to lubricate the pump or its motor• The motor bearings are lubricated for life. The mechanical shaft seal in the pump is water lubricated and selt:adjusting. Draining for Winter When the pump is to be disconnected from service, or is in dan- ger of freezing, it must be drained. The pum[...]

  • Page 8

    SERVICE C. With finger pressure press seat firmly and squarely into cav- ity. See Figure IOA. Polished face of seat faces inside of pump. If seat will not locate properly, pLAce cardboard washer over polished face and use piece of 3/4" standard pipe for press- ing purposes. See Figure'10B. FIGURE lOB 4830194 D. Dispose of cardboard washer[...]

  • Page 9

    TROUBLESHOOTING CHART PROBLEM 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. Refer to instructions on wiring. disconnected, or wired incorrectly. . Check and tighten all [...]

  • Page 10

    REPAIR PARTS 1/2 HP 3/4 HP Key Model Model Part No. 390.251483 390.251883 Description .* I** 2 3* 3A 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21" 22 23 24 25* 25A 26 27 28 29 J218-953C 17351-0009 U78-107PT WC78-41T J218-954C 17351-0009 U78-107PT WC78-41T Motor - 1/2 HP - 115/230V - 60 Cycle Motor - 3/4 HP - 115/230V - 60 Cycle Water Slinge[...]

  • Page 11

    REPAIR PARTS 27 29 28 1 / 2 3 3A 26 11 14 23 7661194 8 9 / 19 / 10 20 ]1[...]

  • Page 12

    SEARS OWNER'S MANUAL MODEL NO. 390.251483 390.251883 The model number of your Shallow Well Jet Pump will be found on the pump body. When requesting service or ordering parts, always give the following information: • Product Type • Model Number • Part Number • Part Description CRAFTSMAN* PROFESSIONAL ".HYDROGLASS ''® SHA[...]