SEARS OWNER'S MANUAL MODEL NO. 390.2.532 I:RRFTIMRN ° CAUTION: Read and Follow All Safety Rulesand Operating Instructions Before First Use of ThisProduct. MULTI-STAGE JET PUMP • Safety Instructions • Installation • Electrical Save ThisManual For Future Reference. • Operation • Maintenance • Repair Parts Sears, Roebuck and Co., Hoffman Estates, IL 60179 PRINTED IN U.S.A. U.S.A. Form No. F642-040T7 (8/6/04) CONTENTS INTRODUCTION/WARRANTY INTRODUCTION .................................. 2 MAJOR COMPONENTS .............................................. PUMP PERFORMANCE ............................................... 3 4 INSTALLATION ........................................................ 4-8 ELECTRICAL ............................................................ OPERATION ........................................................ HELPFUL HINTS / MAINTENANCE ..................... TROUBLESHOOTING 8-9 10-11 11-14 GUIDE .................................. REPAIR PARTS ..................................................... Please read our instructions before installing and using your Deep Well Jet 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 are not covered by our warranty. 15 16-19 RULES FOR SAFE INSTALLATION Carefully read and follow manual or on pump all safety instructions in this This is the safety alert symbol. When you see this symbol on your pump or in this manual, look for one of the following signal words and be alert to the potential for personal injury! ous personal ignored. Warns about hazards injury, death or major property [AWARNING] Warns cause serious personal damage if ignored. [_ CAUTION about that will hazards injury, death cause seri- that will or major damage if or can property ] Warns about hazards that will or can cause minor personal injury or property The word NOTICE which are important damage if ignored. indicates special instructions but not related to hazards. 1. To avoid risk of serious bodily injury and property damage, read safety instructions carefully before installing pump. 2. Follow local and/or national plumbing and electrical codes when installing pump. 3. Keep well covered while installing pump to prevent leaves and other debris from falling into well, contaminating well and possibly damaging pump. AND OPERATION 4. Protect pump and piping system from freezing. Allowing pump or water system to freeze could severely damage pump and voids warranty. [AWARNING] To avoid serious injury and equipment damage, limit system pressure to 100 pounds per square inch (PSI) or below at all times. Over-pressure can cause tank blowup; install relief valve capable of passing full pump volume at 100 PSI. 5. With a new well, test well for purity before use. Consult local Health Department for procedure. [AWARNING_Hazardous voltage. cause death, or start fires. 6. Disconnect electrical power stalling or working on pump. Can shock, source burn, before in- 7. Ground pump with a ground wire nan from grounding lug on motor to a grounded lead in the service panel. 8. Line voltage and frequency of electrical power supply must agree with motor nameplate. 9. Use of fuses or wire smaller than size recommended in owner's manual can cause overheating, possible fires, and will void warranty. 10. This pump is a deep well jet pump. It is not designed or intended for shallow well use. Use in a deep well (more than 25' depth to water). MAJOR COMPONENTS AND WHAT THEY DO Tank and Air Volume Control Adapter The tank serves two functions: The VMS pump is equipped with an adapter flange. This adapter facilitates installation and removal of the pump without disturbing piping. See Pages 6 and 7 for more information. 1. 2. It provides a reservoir of water. Some of this water is drawn offwhencver a house ftxture is opened (so that the pump doesn't need to start every time you open a tap). It maintains a cushion of air under pressure. A standard tank requires an Air Volume Control (AVC) to add air to the tank when needed. See the instructions included with the AVC for details of installation and operation. A Captive Air* tank maintains a constant precharge of air in the tank and does not require an AVC. An annual check on the tank pre-charge pressure is recommended. Impeller The pump's impeller rotates with the motor shaft, causing the water to fly out from its rim by centrifugal force. The rotation of the impeller, along with the motion of the water, creates a vacuum at the center of the impeller (the "eye" of the impeller) which pulis in more water. The Vertical Multi-Stage (VMS) pump has two impellers; the water feeds through them one after the other, with each impeller adding to the pressure. This allows the VMS jet pump to pull water from greater depths and at a higher pressure than a conventional single stage jet pumps. Pressure Relief Valve Under certain conditions, VMS pumps can generate very high pressure. The pressure relief valve is installed to make sure that the pressure in the system does not exceed the pressure which the system can carry safely. The pressure relief valve must be able to pass all the water the pump can produce at the system's rated pressure. Install a relief valve (Sears Stock No. 2729) set to open at 75 PSI. between the pump and the rank. There should be no shutoff valves between the pump and the relief valve. See Figures 11 and 12, Page 8, for more information. Pump Mounting The pump base has three equally spaced 3/4" NPT threaded sockets. These will take threaded pipe for legs, to allow enough room to make piping connections under the pump. In the case of a single pipe installation (see below), the pump can be placed directly over the well, using the offset nipple furnished with the casing adapter to connect the pump to the well head. Piping Jet The jet is a nozzle/ventllri arrangement installed in the well which drives water up to the pump from the well, boosting the water pressure going into the impellers. The jet allows water to be lifted from a greater depth than would be possible with only the impeller eye's vacuum. In order to drive the jet, part of the discharge stream from the pump is diverted back "down the hole" to the jet to help lift water from the well into the pump suction. Pressure Flange Regulator The pressure regulator vert the correct amount most efficient operation. pressure regulator may pump's life (see Page pump's efficiency. is adjusted at installation to diof water back to the jet for the Under certain conditions, the require adjustment during the 10) to restore or maintain the Pressure Switch The pressure switch automatically starts the pump when the pressure in the tank drops to 40 pounds per square inch (PSI) and stops the pump when the tank pressure reaches 60 PSI. When installed on a 'double pipe' jet, one pipe is the pressure or drive pipe; this pipe sends water down into the well to the jet. The other pipe is the suction pipe; this pipe carries water up to the pump suction from the jet. Because of the pressure requirements and depth of multi-stage jet pump installations, use the chart below for pipe selection. When installed on a singe pipe jet, the well casing serves as the drive pipe, carrying water to the jet. The drop pipe inside the well is the suction pipe, carrying water up to the pump from the jet. Use a 'single pipe' system for a 2" or 3" well; use a 'double pipe' system for a 4 _ or larger well. See Pages 6 and 7 for details. Follow instructions packed with jet package to get proper nozzle and venturi combination for your pumping depth. Use 1-1/4" pipe for both suction and drive pipes. A 1" nipple, a 1-1/4"xl" facing bushing, and a 1-1/4 _ coupling are included in the jet package. These must be used with the jet. (See Figure 8, Page 6, for installation details.) PUMP PERFORMANCE Multi-Stage Pump Performance Pump Stock No. 390.2532 1 HP Pump (in gallons per minute) Jet Pkg. No. Discharge Pressure P.S,I, 40 60 70 80 Pumping Depth In Feet 90 100 110 120 140 160 180 2967* 40 60 11.3 10.6 10,0 8.6 8.8 7.5 7,6 6.5 6,5 5.5 5,0 4,8 5,0 4.8 5,0 4.7 4.2 3.9 3,5 2.7 2.0 1.5 29902**t 40 60 11.7 11.0 11.1 9.5 10.2 8.6 9.2 7.8 7.8 6.6 6,4 5.4 5.1 4.7 5.0 4.6 4.5 4,2 4.0 3.4 3.2 2.6 2.1 1.7 29660*** 40 60 11.7 11.O 11.1 9.5 10.2 8.6 9.2 7.8 7.8 6.6 6.4 5.4 5,1 4.7 5.0 4.6 4.5 4.2 4,0 3,4 3.2 2,6 2.1 1.7 210 Use 160 PSI Min. Rating Plastic Pipe. * Jet Package No. 2967- 2" Single Pipe (use 1-1/4" galvanized pipe). ** Jet Package No. 29902 - 3" Single Pipe (use 1-1/4" galvanized pipe). *** Jet Package No. 29660 - 4" Double Pipe. t Must be ordered through Sears Product Service, 1-800-366-7278. INSTALLATION NoAir Leaks in Suction Pipe. _ _amage Pipe Joint Compound Will Plastic. If Air Flows Water Won't Use New Pipe for Best Results. Clean FJow! 1096 0697 From Well Figure I - No Dirt or Scale in Suction Pipe Use Teflon Tape. Figure 4 - Suction 1102 0697 Pipe Must Not Leak ! Figure 2 - Foot Valve Must Work Freely Figure 3 - No Air Pockets in Suction Pipe _,_ Figure 5 - Use Pump On Deep Well Only INSTALLATION NOTICE: For proper performance, pump MUST be matched to ejector and to well depth. Use this pump on wells 25' to 210' deep. 1. Long runs and many fittings increase friction and reduce flow. Locate pump as close to well as possible: use as few elbows and fittings as possible. 2. 3. 4. 5. 6. 7. 8. Piping See Figures Deep Well 6, 7, and 8. NOTICE: Deep well instaUations are either single pipe (2" wells) or double pipe (4" and larger wells). In a double pipe installation, the larger pipe is the suction pipe and the smaller pipe is the drive pipe (very deep wells may use suction and drive pipes of the same diameter). Be sure well is clear of sand. Sand will plug the pump and void the warranty. Protect pump and all piping from freezing. Freezing will split pipe, damage pump and void the warranty. Check locally for frost protection requirements (usually pipe must by 12 _ below frost line and pump must be insulated). Be sure all pipes and foot valve are clean and in good shape. No air pockets in suction pipe. Plastic pipe is ideal for double pipe instaUations. Due to its light weight, it is easy to handle and does not usually require a block and tackle for instaUation and removal. Double Pipe Installation - Plastic Pipe NOTICE: Use Teflon tape on all male threads on plastic pipe and fittings to prevent air leaks in suction piping. No leaks in suction pipe. Use Teflon tape or PlastoJoint stik to seal pipe joints. 1. Inspect ejector to make sure that nozzle turi openings are clean and clear. 2. Inspect NOTICE: openings Match pump to well. IMPORTANT: Flow into well must at least equal flow out through pump! Unions installed near pump and well will aid in servicing. Leave room to use wrenches. pipe for any foreign matter Make sure that no foreign while installing pump. and ven- or obstructions. matter enters pipe 3. Make sure foot valve operates freely: attach to ejector with a close nipple. Use Teflon tape on male threads. . Install nozzle and venturi in deep well ejector. Using Teflon tape on male threads, install special plastic pipe adapter (supplied with ejector) by screwing adapter into 1-1/4" tapped hole in ejector body (see Figures 6 and 8 below). 5. I_, CAUTION]Motor normally operates at high temperature and will be too hot to touch. It is protected from heat damage during operation by an automatic internal cutoff switch. Before handling pump or motor, stop motor and allow it to cool for 20 minutes. Pnming Tee and In The Gasket Gasket Piug Suction: 1-1/4" Ddve: 1-1/4" Pipe Pipe or Plastic Pipe Adapter )e Nipple Pipe or Plastic _Coppling J 1-1/4" pe pe Adapter. (SuPplied with Ejector) 1-1/4x1" Face Ipe Adapter 1' Ni heckValve 1386 1194 trainer 1461 O_g5 Figure 6 - Offset Installation Plastic Pipe Shown Figure 7 - Over the Well Installation Steel Pipe Shown Figure 8 - Jet Assembly With I" and I-I/4" Drive Pipes 5 INSTALLATION 6. Thread a 1" plastic pipe adapter or a 1" nipple into the 1" tapped hole in ejector body (see lfigure 8). 7. Install sufficient plastic pipe in well casing to place ejector at the proper depth. (Your well driller should supply this information.) NOTICE: As a guide, the ejector should be set at least 10 to 20 feet below the lowest water level with pump running, if possible, but always at least five feet from the bottom of the well. 8. 9. Tighten all hose clamps securely on plastic pipe. Use two clamps per joint to prevent air leaks into suction pipe. Clamp screws should be on opposite sides of the pipe. Fill pipes with water to make sure that foot valve and connections do not leak. Install sanitary well seal on top of well casing; use steel nipple through well seal as shown in Figure 6. NOTICE: Align locating lugs on adapter flange pump base so that pump discharge will be aligned piping. 10. Install 1" nipple in one side of adapter flange. threadless coupling down over drive pipe well. Thread adapter flange onto suction pipe well and align nipple and drive pipe. 11. Slide threadless drive pipe. coupling up and secure and with Slide from from nipple to 12. Remove paper backing from adhesive gasket. Apply gasket to adapter flange, making sure that holes line up. 13. Align locating lugs on pump base with locating lugs on adapter flange; attach pump to flange with cap screws provided. 14. See "Discharge Pipe Sizes" for information hag correct discharge pipe size. Steel regard- Piping The special adapter nipple is not used with steel piping. To more safely lower steel piping into the well, build a tripod out of 2x4 lumber. A couple of pipe clamps can also be made of 2x4s secured with 1/2" bolts (see Figure 10B). Always install the coupling at the top end of the pipe joint and install the pipe clamp below the coupling. This will prevent accidentally dropping the pipe into the well if the clamp slips. With steel pipe, be sure all joints are clean and the ends reamed before installing; use teflon tape or pipe joint compound at each joint to prevent leakage. Use a lever hoist (a "come-along") to lower pipe into well (see Figure 10A). As each section of piping is lowered into the well, fill it with water. This will help prime the system and also serves as a check on leaks Pump mounted on Casing Lever Hoist Pipe Clamp - serves as Drive Pipe Waterlevel with pump Pipe Clamp _ _ll_-L Pipe riiing 1Oto20 Feet Figure I 0A - Use tripod pipe into the well and lever hoist to lower Leathers 5 Feet or mere i Figure 9 Figure , I 0B - Pipe clamp detail INSTALLATION which piping Single may occur in the piping is assembled. Pipe Ejector and foot valve as the Discharge b. Leather valve. packer-type c. Turned couplings ejector). d. Well casing ejector). 1. 2. ejector with built-in foot (supplied with packer-type (supplied Model Offset Pipe Sizes Up to 25' Standard Suct. Drive 1-1/4" %1/4" 25' to 100' Suct. Drive 1-1/2" 1-1/4" Drive 2" 2" - Deep Well Tank Connection Add lengths of pipe until the ejector reaches the proper depth. (Your well driller should supply this information.) NOTICE: As a guide, the ejector should be set at least 10 to 20 feet below the lowest water level with pump running, if possible, but always at least 5 feet above the bottom of the well (see Figure 9, Page 7). 4. To properly seat the cup seals, after the ejector is correctly positioned move the assembly up and down slightly. Water pressure in the casing will then soak the cup seals (see Figure 9). They should seal in 2-3 hours after installation. 5. Installation When a standard tank is used, an air volume control (AVC) adds air to the tank when it is needed. See Figure 11 for typical standard tank installation. To connect AVC to pump, thread a 1/8" compression fitting into tapped hole on the front of the pump. Cut tubing to length to reach AVC; assemble to fitting on pump and to AVC on tank. See installation instructions provided with tank and AVC for details. 100' to 300' Suct. Tank The Pressure Tank provides a reservoir of water under pressure and maintains cushion of air pressure to prevent pipe hammering and possible damage to plumbing components. When water is drawn off through house fixtures, the pressure in the tank is lowered and the pressure switch starts the pump. NOTICE: Fill pipe with water as each length is added to be sure foot valve and connections do not leak. 3. When the pump is set away from the points of water use, the discharge pipe size should be increased to reduce pressure losses caused by friction. • Up to 100 ff run: 1" • 100 ft. to 300 ft run: 1-1/4" Pressure When the pump is set more than 25' to one side of the well, increase the horizontal pipe size to reduce friction. Never use pipe smaller than the pump port size. 390,2532 2. with packer-type Lower pipe into casing. Use special turned couplings (included with single pipe ejector package) to increase water flow. Use pipe joint compound sparingly on male couplings threads. Pump If increasing discharge pipe size, install reducer in pump discharge port. Do not increase pipe size by stages. • 300 ft. to 600 ft rim: 1-1/2". adapter Connect ejector to first length of pipe. Use pipe joint compound sparingly on male threads. Horizontal 1. Installation Single pipe installations require (see Figure 9): a. Galvanized steel suction pipe. Pipe Sizes Air Volume Control Sears Stock No. 2761 TANK To Service \ Pump to Tank Piping 1" Discharge _ Regulator Relief Varvs Sears i Stock No. 2729 _._ j With ejector set, install well casing adapter. Remove pipe holder. Align locating lugs and tighten adapter to form seal with well casing. AVC Fitting Air Volume Control Tubing!Fitting _ Sears Stock No. 27881 Well Seal _,55 Figure 7 I I - Pump With Standard Tank b _97t_ PRESSURE Precharged TANK CONNECTION ELECTRICAL Tank Connection Disconnect pump, motor, When a precharged tank is used, no AVC is necessary See Figure 12 for typical precharged tank installation. A precharged tank contains a factory provided air charge. NOTICE: Your pump pressure switch is set for a 4060 PSI range and requires a tank pre-charge of 40 PSI for proper operation (see Figure 13). See tank owner's air charge. An annual check on tank charge is recommended. Motor Switch power pressure before working on switch, or wiring. Settings If 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. NOTICE: line. Remove Never Motor wire a 115 volt motor to a 230 volt End Cover Pressure Regulator Piping Tee and 1" Discharge To Service Figure 2358b0697nc ! 12 - Pump With Relief Valve Captive-Air* Tank Figure 14 - Removing Motor End Cover You will need to remove the motor end cover to change the voltage setting. The illustration above also shows the pressure switch. If the power supply connection still needs to be made, the pressure switch cover will need to be removed. Check Pressure with Tire Gauge Your motor terminal board (located under the motor end cover) should look like one of those below. Plug Type Voltage 10_ Figure 13 - Checking Selector 0_97n¢ Tank Pre-charge Ground Wire ConnsctJon Figure 8 15 - Voltage Pressure Sw=tch Set To 230 Volts, Plug Type ELECTRICAL To change to I 15 volts: 1. Make sure power is off. ranty. The supply voltage must be within motor nameplate voltage. 2. Pull the ping toward you. 3. Move and attach the plug at the 115 volt position. The plug vfdl now cover 2 metal tabs. 4. Reinstall the Motor end cover NOTICE: Dual-voltage motors are factory wired for 230 volts. If necessary, reconnect the motor for 115 volts, as shown. Do not alter the wiring in single voltage motors. 5. Go to Wiring Connections Dial Type Voltage +10% of the Install, ground, wire, and maintain your pump in compliance with the National Electrical Code (NEC) or the Canadian Electrical Code (CEC), as applicable, and with all local codes and ordinances that apply. Consult your local building inspector for code information. below. Selector Connections Motor wires connect here. pply wires connect here. 230 Volt: Connect 2 hot wires (black and red here and cap the wh te neutra wire. t does not matter which wire goes to which screw. 115 Volt: Connect one hot wire (black or red) to one ctfthese screws (i1doesn't matter which one). Connect the white (neutral) wire to the other screw, Cap any remaining black or red wires. on the terminal screws. prevent strain - Connect the green (or bare copper) ground wire to the green ground screw. Figure Figure 16 - Voltage 17 - Pressure Switch Wiring Set To 230 Volts, Dial Type Connection To change to I 15 volts: 1. Make sure power is off. 2. Turn the dial counter-clockwise the dial window. 3. Reinstall the Motor until 115 shows in end cover 4. Go to Wiring Connections below. [_,WARNING]Hazardous voltage. Can shock, burn, or kill. Connect ground wire before connecting power supply wires. Use the wire size (including the ground wire) specified in the wiring chart. If possible, connect the pump to a separate branch circuit with no other appliances on it. IAwARNING] Explosion a gas supply fine. Wiring 31870398 hazard. Do not ground to 1. Connect the ground wire first as shown in Figure 14. The ground wire must be a solid copper wire at least as large as the power supply wires. 2. There must be a solid metal connection between the pressure switch and the motor for motor grounding protection. If the pressure switch is not connected to the motor, connect the green ground screw in the switch to the green ground screw under the motor end cover. Use a solid copper wire at least as large as the power supply wires. 3. Connect the ground wire to a grounded lead in a service panel, to a metal underground water pipe, to a metal wen casing at least ten feet (3M) long, or to a ground electrode provided by the power company or the hydro authority. 4. Connect the power supply wires switch as shown in Figure 17. Connections Fire hazard. a fire or seriously damage Procedure Incorrect the motor to the pressure voltage can cause and voids the war- WIRING MOTOR lip VOLTS MAX. LOAD AMPS 1 115/230 19.2/9.6 CHART - Recommended BRANCH FUSE* I RATING (AMPS) 25/15 Wire and Fuse Sizes DISTANCE IN FEET FROM MOTOR TO METER 0 to 50 10/14 (*)Time delay fuse or circuit breakers are recommended in any motor circuit. 51 to 100 10/12 101 to 200 8/10 201 to 300 6/10 OPERATION Priming The Pump 2. Pressure should increase rapidly to 50 pounds per square inch or more as ejector and pump prime. If so, go to step 4, below. I&WARNING ]Burn hazard. NEVER run pump dry. Running pump without water may cause pump to overheat, damaging seal and possibly causing burns to persons handling pump. Fill pump with water before starting. lf pressure does not build to 50PSI, repeat steps a, b, and c under Step No.1 two or three times to remove entrapped air from the suction pipes. IAWARNING]Risk of explosion and steam burns. NEVER run pump with discharge shut off, which can boil water inside pump body. Steam in pump may cause it to explode and scald anyone near. NOTICE: Open water system pump for the first time. 1. Remove pressure a. Close regulator ]8A). b. Fill pump lSB). faucets before 3. and suction priming - see Figure pipe with water c. Replace pressure gauge, thread; tighten gauge. using Teflon If pressure does not build up after priming several times, check the following: pump a. Suction pipe in the water. b. Suction pipe has no leaks. NOTICE: Air can leak in even where water won't leak out. Make sure all joints are tight. c. Control valve, check valve, or foot valve installed and operating correctly. d. Pump trying to lift water more than rated lift for deep well ejector used (including compensation for horizontal offset). gauge. valve (turn clockwise Start Pinup: (Figure tape on e. Be sure pump is not airlocked. In offset installations, pump suction port should be highest point in suction pipe; there should be no sags in suction pipe (run it straight and at a slight angle upward from well head to pump). NOTICE: If a priming tee and plug have been installed for a long horizontal rim, be sure to fill suction pipe through this tee and replace plug. (Don't forget to teflon tape the plug.) 2360a 0697 1030a 0697 A - Close Regulator I Figure Pump 18 - Priming B - Fill Pump With Water 10 l_ C - Start Pump i D - Adjust Regulator OPERATION 4. 5. 6. 7. HELPFUL Once unit has primed and pressure stabilized, slowly open (turn counterclockwise - Figure 19A, regulator valve until pressure falters (pressure gauge needle flutters; pump may become noisy- see Figure 1913). At this point, close (turn clockwise) regulator valve slightly until pressure stabilizes. This setting provides maximum flow (Figure 19C). Pump may draw well down far enough at this point to lose its prime. If so, close regulator valve until pressure is stable throughout pumping cycle. Close faucets and allow pump to pressurize tank and shut off. How HINTS To Handle / MAINTENANCE A Gaseous Well In some areas well water contains gases which must be allowed to escape before the water is used. To deliver gas-free water suspend a pipe, closed at the bottom and open at the top, so that it surrounds the suction pipe inlet. (See Figure 20). Since the gases rise in the well casing, the water sucked down through the pipe and into the suction pump is free of gas. This type of weil must be vented to the outside of any enclosure. Air Control Check system by alternately opening and closing faucets in the system. With faucets open, pressure will drop until pump starts; with faucets closed, pressure will build up until pump shuts off. There are conditions of deep well operation when the regulator valve may be completely open without any faltering of pressure. In this case, operate pump with regulator valve open. In Flowing Wells Flowing wells or wells with little or no drawdown, could create a special problem in air control in the operation of your standard tank system. In such cases, a pre-charged tank (which needs no air control) is recommended. Gases rise to surface Figure 19A - Open Regulator wire to hold pipe sleeve Valve pipe valve sleeve cap Figure 19B - Watch for Pressure Gauge to Flutter Figure 20 - Gas/Air Figure 19C - Close Regulator Pressure Stabilizes Valve until 11 Control in Well MAINTENANCE Using the Compound Gauge Pump Diassembly If the pump or system seems to be operating inefficiently, the compound gauge can sometimes help determine the problem. A compound gauge is a combination vacuum and pressure gauge which will indicate (1) receding water level in the well, (2) leakage in the suction line or in the pump, or (3) clogged impeller. To use, install the gauge in the air volume control (AVC) port in the base of the pump. Open all shutoff valves between pump and household piping. Tighten regulator screw as far as possible. After running pump a few minutes to eliminate all air from pipes, loosen regulator screw until compound gauge shows 15" of vacuum. This setting indicates that the pressure regulator is set for delivery of the highest volume of water possible. Let the pump run a few minutes; if the water level in the well is falling, the vacuum vdll increase. If necessary, reduce the regulator setting to bring the vacuum reading back to 15 ". If the pump does not develop 15" of vacuum according the gauge, you may have air leaks in the suction line or a clogged impeller. Cleaning the Deep Well 1. Pull disconnect switch. from pressure switch. 2. Remove the two cap screws holding the pump to the flange adapter. Don't disturb the piping in the well. 3. Remove surfaces , 5. the flange clean. Disconnect adapter gasket power and scrape lines the Leaving the tubing in place, unscrew and remove the straight barbed fitting at the pressure switch. Draw a line down the side of the pump with a marker to help alignment during reassembly. Mark the pump from the motor to the base volute (see Figure 21). Jet 1. Disconnect power. 2. 3. 4. Disconnect piping and well seal or casing adapter. Vc_tthdraw jet assembly from the well. Unscrew and remove the venturi. Remove the nozzle with a socket wrench and clean. 5. Replace all parts, reprime, Figure 21 6. and turn on power. Turn the pump upside down on the bench and block it. Remove the four cap screws from the base. With a mallet, tap upward on the base to loosen it. Lift the base off of the intermediate volute (see Figure 22). Figure 22 7. 12 To reduce the chance your foot, lay it down won't roll. of dropping the pump onto on the bench; block it so it MAINTENANCE . 1 I. Remove the intermediate volute peller spacer off of the shaft. Hold the motor shaft with pliers or vice grips fllrough the opening in the pump adapter. Unscrew the impeller nut off the end of the shaft (see Figure 23). and slide the im- 12. Remove the impeller. Don't disturb the shaft keys ff you arc only replacing the seal. 13. Rotate the seal spring retainer cup so that the slot lines up with the shaft keys; remove the cup and spring. 14. Remove the two cap screws holding the adapter bracket to the motor. 15. With two screwdrivers on opposite sides of the pump, carefully pry the pump adapter away from the motor. This vdll pull the seal off of the motor shaft. Use caution to make sure that the ceramic seal does not dig into the sbaft and scratch the shaft's sealing surface. Figure 23 9. Installation The impellers are keyed to the shaft and do not unscrew. Insert two screw drivers on opposite sides under the exposed impeller and pry the impeller off (Figure 24) to remove it. Of New Seal 1. Clean all gasket surfaces thoroughly before reassembly. Clean the seal bore cavity in the pump adapter. 2. Wet the rubber seat ring with soapy water and push the stationary part of the seal into the seal bore cavity. Use a piece of 1" pipe pressing on a cardboard washer (to prevent damaging seal surface) as a press. Make sure that the seal half is fully seated in the seal bore cavity Remove the cardboard once the seal is in place. Make sure that the shaft keys are in place on the shaft. If they are not, squeeze them in place now with slip joint pliers. Do not tap tbem or bit them with a hammer; you could bend the shaft (see Figure 26). When the keys are correctly installed, the adapter will pass over the keys without interference. 3. Figure 24 10. Carefully tap a small screwdriver chisel in between the intermediate or thin bladed volute and the pump adapter in two or three places around the pump to separate the castings (Figure 25). Do not mar the sealing surfaces; do not break pieces out of the adapter or volute - the castings are easily damaged. ! Use pliers with care no hammers. Figure 26 Figure 25 13 HAINTENANCE , Carefully slide the adapter over the shaft (see Figure 27). Do not damage the shaft sealing surface; it is highly polished and any slight scratches or nicks will ruin it. 9. 10. Make sure the second shaft key is in place and install the second impeller. Twist the impeller to make sure that the shaft key is still in place. Hold the motor shaft with slip-joint pliers or vice-grips and install and tighten the impeller locknut. Tightening the lock nut automatically spaces the impeller correctly. Do not overtighten. Align Marks_ 11. Install the base volute gasket. Make sure thegasket is rl_ht side up so that the waterpassage holes line up with the water passages in the volutes. Install the base volute, using the alignment marks made before disassembly. Make sure that the pump discharge will correctly meet the the piping when the pump is reinstalled. 12. Insert the four base capscrews and tighten evenly (see Figure 29). These should be easy to install ff everything is correctly aligned. If not, don't force them," go hack over your work and find and correct the misalignment. Figure 27 5. 6. Install the intermediate volute, aligning it with the mark made before disassembly. Use the long cap screws to check this alignment. It cannot be stressed too strongly that all bolt holes and water passages of all gaskets and volutes MUST line up with each other, or the pump will not be assembled correctly. Using the alignment marks made before disassembiT, line up the adapter with the motor and bolt the adapter in place. Tighten the cap screws evenly. Push the shaft seal and seal spring onto the shaft, after making sure that the seal faces and shaft are clean. Take care that the shaft shoulder does not damage the carbon seal face. Follow the seal spring with the spring holder; compress the spring and give the spring holder a quarter turn to lock it under the first shaft key (see Figure 28). Bolts should be easy to insert. Make sure all marks line up. Figure 29 13. Reinstall the pressure sure tube. Figure 28 7. Slide the first impeller onto the shaft; follow it with the impeller spacer. Twist the impeller on the shaft to make sure that the shaft key is still in place and the impeller is locked to the shaft (the shaft should turn with the impeller). 8. Install a new volute gasket, lining up the bolt holes with the bolt holes in the adapter. Make sure the gasket is right side up so that the waterpassage holes line up with the water passages in the volutes. switch barb fitting and pres- 14. Reinstall the pump on the adapter flange (use a new gasket) and reconnect the wiring and grounding. Pump is now ready for operation. 14 TROUBLESHOOTING SYMPTOM POSSIBLE CAUSE(S) CHART CORRECTIVE ACTION Motor will not run 1. 2. 3. 4. Disconnect switch is off Fuse is blown Starting switch is defective Wires at motor are loose, disconnected, or wired incorrectly 5. Pressure switch contacts are dirty 6. Wrong voltage 1. 2. 3. 4. Motor runs hot and overload kicks off 1. Motor is wired incorrectly 2. Voltage is too low 1. Refer to instructions on wiring 2. Check with power company. Install heavier wiring if wire size is too small. See wiring instructions. 3. See section below on too frequent cycling 3. Pump cycles too frequently Motor runs but no water is delivered *(Note: Check )rime before looking for other causes. Unscrew pressure gauge and see if there is water in priming hole) "1. Pump in a new installation did not pick up prime through: a. Improper priming b. Air leaks c. Leaking foot valve *2. Pump has lost its prime through: a. Air leaks b. Water level below suction of pump Ejector or impeller is plugged 4. Check valve or foot valve is stuck in closed position 5. Pipes are frozen 3. 6. Foot valve and/or strainer are buried in sand or mud Be sure switch is on Replace fuse Replace starting switch Refer to instructions on wiring. Check and tighten all wiring. 5. Clean by sliding piece of plain paper between contacts 6. Make sure motor voltage exactly matches power supply voltage. 1. In new installation a. Re-prime according to instructions b. Check all connections on suction line, air volume control, and ejector c. Replace foot valve 2, In installation already in use: a. Check all connections on suction line, air volume control, ejector and shaft seal b. Lower suction line into water and re-prime. If receding water level in a shallow well operation exceeds suction lift, a deep well pump is needed. 3, Clean ejector or impeller; see Maintenance 4. Replace check valve or foot valve 5. Thaw pipes. Bury pipes below frost line. Heat pit or pump house. 6. Raise foot valve and/or strainer above well bottom Pump does not deliver water to full capacity (Also check point 3 immediately above) 1. Water level in well is lower than estimated 2. Steel piping (if used) is corroded or limed, causing excess friction 3. Offset piping is too small in size 1. Lower ejector in weir 2. Replace with plastic pipe where possible, otherwise with new steel pipe Pump pumps water but does not shut off 1. Pressure switch is out of adjustment or contacts are "frozen" 2. Faucets have been left open 3. Ejector or impeller is clogged 4. Water level in well is lower than estimated 5. Wrong voltage 1. Adjust or replace pressure switch Pump cycles too frequently Air spurts from faucets 3, Use larger offset piping 2. Close faucets 3. Clean ejector or impeller 4. Check possibility of using a deep well jet pump 5. Make sure motor voltage exactly matches power supply voltage. 1. Standard pressure tank is waterlogged and has no air cushion 2. Pipes leak 3. Faucets or valves are open 4. Foot valve leaks 5. Pressure switch is out of adjustment 6. Air charge too low in Captive Air _ tank 1. Drain tank to air volume control tapping. Check air volume control for defects. Check for air leaks at any connection. 2. Check connections 3. Close faucets or valves 4. Replace foot valve 5. Adjust or replace pressure switch 6, Disconnect electrical power and open faucets until all pressure is relieved. Using automobile tire pressure gauge, check air pressure in tank at the valve stem located at top of tank. If less than the pressure switch cut-in setting, pump air into tank from outside source until the air pressure is the same as cut-in setting of switch. Check air valve for leaks, using soapy solution, and replace core if necessary. 1. 2. 3. 4. 1. 2. 3. 4. As soon as pump picks up prime, all air will be ejected Check suction piping Change installation, see Maintenance Lower foot valve if possible, otherwise restrict discharge side of pump Pump is picking up prime Leak in suction side of pump Well is gaseous Intermittent overpumping of well 15 REPAIR PARTS Multi-Stage Jet Pump 2 3 4 - -14C --12 @--11 /_ 17 18 I 1281 0994 Repair Parts List - Multi-Stage Key No. 1"* 2 3 4 5 6 7 8 9 10 11 12 13 14 14A 14B 14C 15 16 17 18 Part Number J218-600C L43-5C U36-112ZP U217-1228 U37-672P J212-24A L2-16A U30-75ZP U65-15SS U109-99 J24-11 J105-76P J43-23 J101-26 J20-11 J23-10 J23-11 U36-175D J101-33 U78-57CT Jet Part Description Motor Connector Locknut - 1/2" Pressure Switch Switch Tube - 14-1/2" Pressure Regulator Assembly Adapter Capscrew - 3/8"-16x1-1/4" Lg. (2 Req.) Shaft Key (2 Req.) Seal - Shaft Spring Holder Impeller (2 Req.) Spacer- Impeller Intermediate Volute w/Wear Rings Gasket (2 Req.) Wear Ring (2 Req.) Wear Ring Impeller Nut Base Volute w/Wear Ring Pipe Plug - 1/4" NPT Capscrew - 3/8"-16x4-1/4" Lg. (4 Req.) • Standardhardware item; may be purchasedlocally. *• Notmailable; specify freightor express. For repair or service to motors, always give the Motor Model number and any other data found on the motor model plate. This is a repair parts list, not a packing list. Please order by part number - not by key number. REPAIR PARTS Pressure Regulator 7 I Call Sears Product Service, To Order Parts, 1-800.366-7278 Repair Parts List - Pressure Regulator Key No, 1 1A 1B 2 2A 2B 2C 2D 2E 2F 3 4 5 6 7 8 9 10 Part Number Jl12-14 U111-212T J66-16 J220-16B J42-5 J62-9 J20-16 J43-31 U43-23ZP U36-36ZP U78-107DT U239-3 J24-13 J61-5 J52-9 U30-69FTZP U36-205ZP Part Description Pressure Regulator Body w/Seat Barbed Fitting - Elbow Valve Seat Diaphragm Assembly Regulator Guide Stem Diaphragm Spring Follower Lock Washer Nut 1/4-20 Reducer Bushing 1/2xl/8 NPT Pressure Gauge 0-100_f Spring Spring Guide Bonnet Capscrew 5/16-18x3/4" Lg. (4 Req.) Adjusting Screw 5/16-18x2" Locknut 5/16-18 * Standard hardware item; may be purchased locally. For repair or serviceto motors,always givethe Motor Model number and any other data found on the motor model plate, This is a repair parts list, not a packing part number - not by key number, ]7 list. Please order by I REPAIR PARTS Vertical Casing Adapters and Adapter Flanges for Multi-Stage Jet Pump To Order Parts, Call Sears Product Service, 1-800-366-7278 ! 6 489 0194 _ g_ O Adapter Flange Casing Adapter Repair Parts List - Adapter Flange Key No. Part Number 1 2 3 J20-12 J2-17B Part Description Adapter Gasket Adapter- 1-1/4"x1-1-1/4" NPT 1/2-13 x1-1/4" Long Capscrew (2 Req.) * Standard Hardware Item, may be purchasedlocally. Repair Parts List - Casing Adapters Key No. 1 2 3 4 5 6 7 8 9 J216-13 2" U30-282ZP J16-19ZZP J21-19 J21-18 J51-1ZZP U30-277ZP J21-17 J16-2077p U36-38ZP J216-14 3" U30-282ZP J16-23ZZ J21-19 J21-18 J51-3ZZ U30-277ZP J21-21 J 16-24ZZP U36-38ZP Part Description 3/8-16x5" Long Machine Bolt (2 Req.) Upper Flange Seal Ring - Drive Pipe Seal Ring - Suction Pipe Casing Adapter Body 3/8-16x2-1/2" Hex Hd. Bolt (3 Req.) Seal Ring - Lower Lower Flange 3/8" Hex Nut (3 Req.) 18 9 REPAIR PARTS Jet Packages 4" Double Pipe Jets 2" and 3" Single Pipe Jets @ Suction Pipe Drive Pipe: Adapter ipple 12 Well .Drop Pipe 1 • PipeAdapter "*--3 1361 1094 Repair Parts List - Jet Packages 13801 o94 Key No. t 1 2 3 4 5 6 7 8 9 10 11 12 2967 2" Single Pipe Jets J32P-24 J32P-18 J34P-42 J40-24 J57-1 J43-14P Pt22-10B J66-13 Ul1-1 J37-4 29902 3"Single Pipe Jets 29660 4" Double Pipe Jets J32P-24 J32P-18 J34P-42 J40-25 J57-3 J43-16 J43-20C J161-3 J66-14 J32P-24 J32P-18 J34P-42 N40-92 Venturi Venturi Nozzle N212-12P J37-4 L8-1P U11-104P m J216-13 U37-116GP Part Description J216-14 U37-116GP Jet Body Packer Leathers (2 Req) Spacer Washer Check Valve Valve Seat Turned Coupling (11 included) 1" NPT Offset Nipple Strainer Plastic Pipe Adapter Casing Adapter 1" x 6" T.O.E. Nipple • Not illL strated. Venturi Selection Chart Max, Depth with Jet Package No. Pump Model HP 390.2532 1 ]£ 2967 29902 29660 Venturi Installed 2" Single Pipe 3" Single Pipe 4" Double Pipe J32P-24 J32P-18 90' 180' 100' 210' 100' 210' OWNER'S MANUAL CRAFTSMAN+ MULTI-STAGE JET PUMP Model No. 390.2532 Forthe repair or replacementpartsyou need Call 7 am - 7 pm, 7 daysa week 1-800-366-PART (1-800-360-7278) Forin-homemajorbrandrepair service Call24 hoursa day,7 days a week 1-800-4-REPAIR (1-800-473-7247) The model number of your Multi-Stage 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 Forthe location of a SearsRepairService Centerin yourarea Call24 hours a day,7 daysa week 1-800-488-1222 ForInformation on purchasingu Sears MaintenanceAgreementor to inquire aboutan existingAgreement call 9 am - 5 pm, Monday-Saturday A 1-800-827-6655 SEARS America's Repair Specialists Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.