CRAFTSMAN Pump Manual 98080369
User Manual: CRAFTSMAN CRAFTSMAN Pump Manual CRAFTSMAN Pump Owner's Manual, CRAFTSMAN Pump installation guides
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SEARS OWNER'S MANUAL MODEL NO. 390.253251 CRRFTSMRN° CAUTION: Read and Follow All Safety Rulesand Operating Instructions Before First Use of This Product. MULTI-STAGE JET PUMP • Safety Instructior_ • 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, F642-9807 (Rev. 716/98) CONTENTS INTRODUCTION/WARRANTY INTRODUCTION .................................. 2 MAJOR COMPONENTS .............................................. PUMP PERFORMANCE ............................................... 3 4 INSTALLATION ........................................................ ELECTRICAL .......................................................... 5-8 9-10 OPERATION ........................................................ HELPFUL HINTS / MAINTENANCE ..................... TROUBLESHOOTING 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 all safety instructions manual or on pump 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! Warns about ous personal ignored. cause serious personal damage if ignored. CAUTION that will cause seri- injury, death or major property I'A_WARNINGIWarns IA hazards ] Warns cause ",_or_er_sona_l nored. The worcr'NOTICE whick are.important about hazards injury, death about _iUry hazards that damage will if or can or major property that or property will or can damage if ig- - 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 cal codes when installing pump. and electri- 3. Keep well covered while installing pump to prevent leaves and other debris from falling into well, con, taminating 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. IAWARNING[ 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. IAwARNING [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 run 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 Tank and Air Volume AND WHAT Control Adapter The tank serves two functions: 1. 2. 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. 27229) set to open at 75 PSI. between the pump and the tank. There should be no shutoff valves between the pump and the relief valve. See Figures 11 and 12, Page 8, for more information. stallation and operation. A Captive _ 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 wit_ the motor shaft, causing the water to fly-__md_y 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 pulls in more water. 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. The Vertical Multi-Stage O/MS) 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. 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 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. Jet The jet is a nozzle/venturi 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. 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. Pressure Regulator Pressure Flange 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. It provides a reservoir of water. Some of this water is drawn offwhenever a house fixture 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 (AVLO to add air to the tank when needed. See the instructions included with the AVC for details of in- The pressure regulator vert the correct amount most efficient operation. pressure regulator may pump's life (see Page pump's efficiency. THEY DO 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. is adjusted at installation to diofwater back to the jet for the Under certain conditions, the require adjustment during the 10) to restore or maintain the 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.) 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. 3 PUMP PERFORMANCE Multi-Stage Pump Performance Pump Stock No. 390.253251 1HP (in gallons per minute) Jet Pkg. No. Discharge Pressure P.S.I. 40 60 70 80 29670* 4O 60 11.3 10.6 10.0 8.6 8.8 7.5 7.6 6.5 29902"*t 4O 60 11.7 11.0 11.1 9.5 10.2 8.6 29660*** 40 60 11.7 11.0 11.1 9.5 10.2 8.6 Use 160 PSI Min. Rating Plastic Pump Pumping Depth In Feet 1_ 110 120 140 1_ 1_ 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 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 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 Pipe. * Jet Package No. 29670 - 2" Single Pipe (use 1-1/4" galvanized pipe). ** Jet Package *** Jet Package No. 29902 No. :59__ 3" S_ingle Pipe (use 1-1/4" galvanized Pipe. pipe). 1 Must be ordered through Sears Product Service, 1-800-366-7278. 4 210 INSTALLATION Do not use on shallow wells! (25 feet or less in depth) !1:T ,hltl Use New Pipe for Best Results. , t Deep well is more than 25' (7.6M) to water with pump running. Clean Rowl Well _ 1 ) 1O960697 From Well Casing _ Foot--._._ Valve _'I _I Figure I - No Dirt or Scale in Suction Pipe 822b 0697 Strainer_ Figure 5 - Use Pump On Deep Well Only NOTICE: For proper performance, pump MUST be matched to ejector and to well depth. Use this pump on wells 25' to 210' deep. 1. 1100 0697 Figure 2 - Foot Valve Must Work 2. Freely 3. 4. If Air Pockets Fon'n, Water Won't Flow. Keep Pipe Straight and Angled up to Pump. 5. 6. No air pockets in suction pipe. No leaks in suction pipe. Use Teflon tape or PlastoJoint Stik to seal pipe joints. 7. 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. 1t01 _1_7 Figure 3 - No Air Pockets in Suction Pipe No Air Leaks in Suction Pipe. 8. Pipe Joint Compound Will _Plastic. If Air Flows Water Won't Use Teflon Tape. !:igure 4 - Suction Pipe Must Not Leak 1102 0697 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. 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. IA CAUTION I 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. DEEP WELL INSTALLATION FOR DOUBLE PIPE Priming Tee and I Gasket Gasket Suction: 1-1/4" Coupling Drive: 1-1/4" Pipe Seal orPipe Plastic --- 1" Plastic Drive Pipe 1-1/4" Cou Plastic Pipe Adapter. (Supplied with Ejector) 1" Plastic Pipe Adapter -- Ejector Assembly J Drive Pipe 1-1/4" Plastic Suction Pipe -- Pipe or Plastic Pipe Adapter 1-1/4x1" Face Bushinc 1" Nipple 1386 1194 1461 Figure 6 - Offset Installation Plastic Pipe Shown Piping In The Figure 7 - Over the Well Installation Steel Pipe Shown Deep Well the 1" tapped 7. See Figures 6, 7, and 8. NOTICE: Deep well installations 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). Plastic pipe is ideal for double pipe installations. Due to its light weight, it is easy to handle and does not usually require a block and tackle for installation and removal. Double Pipe Installation 0195 - Plastic hole in ejector body (see Figure 8). 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. Tighten all hose clamps securely on plastic pipe. Use two damps 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. 9. Install sanitary well seal on top of well casing; use steel nipple through well seal as shown in Figure 6. Pipe NOTICE: Use Teflon tape on all male threads on plastic pipe and fittings to prevent air leaks in suction piping. Figure 8 - Jet Assembly With I" and I - I/4" Drive Pipes and ven- NOTICE: Align locating lugs on adapter flange and pump base so that pump discharge will be aligned with piping. 2. Inspect pipe for any foreign matter or obstructions. NOTICE: Make sure that no foreign matter enters pipe openings while installing pump. 3. Make sure foot valve operates freely: attach to ejector with a close nipple. Use Teflon tape on male threads. 10. Install 1" nipple in one side of adapter flange. Slide threadiess coupling down over drive pipe from well. Thread adapter flange onto suction pipe from well and align nipple and drive pipe. 11. Slide threadless coupling up and secure nipple to drive pipe. 4. Install nozzle 5. 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, above). 12. Remove paper backing from adhesive gasket. Apply gasket to adapter flange, making sure that holes line up. 1. 6, Inspect ejector to make sure that nozzle turi openings are dean and clear. Thread and venturi in deep well ejector. a 1" plastic pipe adapter or a 1" nipple into 13. Align locating lugs on pump base with locating lugs on adapter flange; attach pump to flange with cap screws provided. DEEP WELL INSTALLATION FOR SINGLE PIPE Pump mounted on Casing Adapter "%_ Pipe Clamp serves Drive Water level with pump as Pipe Pipe Clamp. Pipe L Figure I 0A - Use tripod pipe into the well 10 to 20 Feet and lever hoist to lower Ej ,r Cup Leathers 5 Feet or more Figure Figure 9 14. See "Discharge Pipe Sizes" for information ing correct discharge pipe size. Steel a. Galvanized steel suction pipe. b. Leather packer-type ejector with valve. 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 lOB). 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 which may occur in the piping and foot valve as the piping is assembled. Single Pipe Ejector Single pipe installations 1. 2. built-in foot c. Turned couplings (supplied with packer-type ejector). d. Well casing adapter (supplied with packer-type ejector). Connect ejector to first length of pipe. Use pipe joint compound sparingly on male threads. 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. Horizontal Offset Pipe Sizes 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. Pump Model 390.253251 Installation require 10B - Pipe clamp detail Up to 25' Suct. Drive 25' to 100' Suct. Drive 1-1/4" 1-1/4" 1-1/'Z' 1-1/4" 100' to 300' Suct. Drive 2" 2" NOTICE: Fill pipe with water as each length is added to be sure foot valve and connections do not leak. (see Figure 9): 7 PRESSURE Air Volume Control Sears Stock No. 2761 lANK I _1 CONNECTION To Service _"_ " _ (_ f_"-tax I_ (J_ _._lb y Pump to Tank Piping I1._. 1" Discharge --_ TANK _"_- _, J _ J TANK Pressure Regulator ,_j/j Relief Valve Sears._-*_!_ Stock No. 27229 _. r_ _j_-,_._ -_ _ Air Volume Control Tubing/Fdti_ "_ _ Sears Stock No. 27881 WellSeal n_ _ j __. ) "_"_1, • ' "v,,,.Pressure Regulator AVC Fitting Piping Tee and " Figure 3. I I - Pump With Standard t 1" Service Discharge To 2355b 0697rm 2358b Figure Tank Add lengths of pipe until the ejector reaches proper depth. (Your well driller should supply information.) Relief Valve 0697nc 12 - Pump With Captive-Ai# Tank the this Check Pressure with Tire Gauge 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. With ejector set, install well casing adapter. Remove pipe holder. Align locating lugs and tighten adapter to form seal with well casing. Discharge Figure 13 - Checking Tank Pre-charge Pipe Sizes Standard 1. If increasing discharge pipe size, install reducer in pump discharge port. Do not increase pipe size by stages. 2. 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. 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. • Upto 100 ft run: 1" • 100 ft. to 300 ft run: 1-1/4" • 300 ft. to 600 ft run: 1-1/2". Pressure Tank Installation - Deep Tank Connection Precharged Tank Connection 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. Well 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: Your pump pressure switch is set for a 40-60 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. 8 ELECTRICAL Disconnect power before working on pump, motor, pressure Your Motor Terminal Board (under the motor end cover) and Pressure Switch look like one of those shown below, Convert to 115 Volts as shown. Do not change motor wiring ff line voltage is 230 Volts or if you have a single voltage motor. Connect power supply as shown for your type of switch and your supply voltage. - Motor wires connect here. -Power supply wires connecthere. 230 Volt: Connect 2 hot wires (black and red1 here and cap the white (neutral) wire. It does notmatter whichwire goes to which screw. 115 Volt: Connect one hot wire (black or red) to one of these screws (it doesnl matter which one). Connect the white (neutral) wire to the other screw. Cap any remaining blackor red wires. 230 Volt to 115 Volt Conversion, Plug-in Type: 1. Pull plug straight out from terminal board; switch, or wiring. 2. Plug in again with arrow on plug pointingto '115 Volts'. 2. 1. Clamp the power cable to prevent strain on the terminal screws. Connect the green (or bare copper) ground wire to the green ground screw. Motor wires connect here. 230 Volt to 115 Volt Conversion,Spade Connector Type: 1.Move blackwire from A to L1. 2. Move whitewire with black tracer from B to A. supply wires connect here. 230 Volt: Connect 2 hot wires (black and red) here and cap the white (neutral) wire. It does not matter which wire goes to which screw. 115 Volt: Connect one hot wire (black or red) to one of these screws (it doesn't matter which one). Connect the white (neutral) wire to the other screw. Cap any remaining black or red wires. 3. Change Complete: _Ground Screw ) the powercable to prevent strain on the terminal screws. green (or bare copper) groundwire to the green groundscrew. Figure 14 - Motor wiring connections through Pressure Switch. Match motor Wiring hazard. Do not ground voltage to line voltage. with all local codes and ordinances that apply. Consult your local building inspector for code information. IAWARNING I Hazardous voltage. Can shock, burn, or kill. Connect ground wire before connecting power supply wires. Use the wire size (induding the ground wire) specified in the wiring chart. If possible, connect the pump to a separate branch circuit with no other appliances on it. JA WARNING JExplosion a gas supply line. 31870398 Connection Procedure 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. to . 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. Connections I AWARNINGJFire hazard. Incorrect voltage can cause a fire or seriously damage the motor and voids the warranty. The supply voltage must be within ±10% of the motor nameplate voltage. . 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. Install, ground, wire, and maintain your pump in compliance with the National Electrical Code (NEC) or the Canadian Electrical Code (CEC), as applicable, and Connect the ground wire to a grounded lead in a service panel, to a metal underground water pipe, to a metal well 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 14. 9 to the pressure ELECTRICAL WIRING CHART / OPERATION - Recommended MOTOR HP VOLTS MAX. LOAD AMPS BRANCH FUSE* RATING (AMPS) 1 115/230 19.2/9.6 25/I 5 Wire and Fuse Sizes DISTANCE IN FEET FROM MOTOR TO METER 0to50 10/14 51 to 100 10/12 101to200 8/10 I 201 to300 I 6/10 (*)Time delayfuse or circuitbreakers are recommendedin any motor circuit. Priming The Pump 3. ]_,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. Remove pressure a. Close regulator 15A). b. Fill pump 15B). gauge. valve (turn clockwise and suction pipe c. Replace pressure gauge, thread; tighten gauge. - see Figure with water using Teflon (Figure tape 4. on NOTICE: If a priming tee and plug have been installed for a long horizontal run, be sure to fill suction pipe through this tee and replace plug. (Don't forget to teflon tape the plug.) 2. Start Pump: 5. Pressure should increase rapidly to 50 pounds per square inch or more as ejector and pump prime. If so, go to step 4, below. . If pressure does not build to 50 PSI, repeat steps a, b, and c under Step No.1 two or three times to remove entrapped air from the suction pipes. A - Close Regulator I_igure 15 - Priming m B - Fill Pump With pump 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. {AWARNINGIRisk 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 expkglr.,g__yone near. NOTICE: Open water system faucets before priming pump for the first time. 1. If pressure does not build up after priming several times, check the following: a. Suction pipe in the water. Water Pump 10 d. Pump trying to lift water more than rated lift for deep well ejector used (including compensation for horizontal offset). 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). Once unit has primed and pressure stabilized, slowly open (turn counterclockwiseFigure 16A, regulator valve until pressure falters (pressure gauge needle flutters; pump may become noisy - see Figure 16B). At this point, close (turn clockwise) regulator valve slightly until pressure stabilizes. This setting provides maximum flow (Figure 16C). 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. 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. C - Start Pump _ D - Adjust Regulator OPERATION . I MAINTENANCE 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. HELPFUL How HINTS To Handle Using the Compound If the pump or system seems to be operating inefficiently, the compound gauge can sometimes help determine the problem. I MAINTENANCE A Gaseous 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 will 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. 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 17). 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 well must be vented to the outside of any enclosure. Air Control In Flowing Wells Flowing wells or wells with little or no drawdown, could create a special p__ti_ocitrol in the operation of your standard tank system. In such cases, a pre-charged tank (which needs no air control) is recommended. Cleaning Figure 16A - Open Regulator Gauge the Deep Well Jet 1. Disconnect power. 2. 3. 4. Disconnect piping and well seal or casing adapter. Withdraw jet assembly from the well. Unscrew and remove the venturi. Remove the nozzle with a socket wrench and clean. 5. Replace all parts, reprime, and turn on power. Valve Gases rise to sudace wire to hold pipesleeve Figure 16B - Watch for Pressure Gauge to Flutter pipe valve sleeve cap Figure 16C - Close Regulator Pressure Stabilizes Valve until Figure 11 17 - Gas/Air Control in Well MAINTENANCE Pump Diassembly 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 4. 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 18). 5. the flange clean. Hold the motor shaft with pliers or vice grips through the opening in the pump adapter. Unscrew the impeller nut off the end of the shaft (see Figure 20). . Disconnect adapter gasket power and scrape lines the Figure 20 . Figure . 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 21) to remove it. 18 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 19). Figure 21 10. Carefully tap a small screwdriver or thin bladed chisel in between the intermediate volute and the pump adapter in two or three places around the pump to separate the castings (Figure 22). Do not mar the sealing surfaces; do not break pieces out of the adapter or volute - the castings are easily damaged Figure 7. 19 To reduce the chance your foot, lay it down won't roll. of dropping the pump onto on the bench; block it so it Figure 22 12 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; it is highly polished and any slight scratches or nicks will ruin it. . peller spacer off of the shaft. 12. Remove the impeller. Don't disturb the shaft keys if you are 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. Align Marks 15. With two screwdrivers on opposite sides of the pump, carefully pry the pump adapter away from the motor. This will pull the seal off of the motor shaft. Use caution to make sure that the ceramic seal does not dig into the shaft shaft's sealing surface. Installation 1. Clean Of New all gasket and scratch the before re- Seal surfaces thoroughly Figure 24 assembly. Clean the __ 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. 3. 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 them or hit them with a hammer; you could bend the shaft (see Figure 23). When the keys are correctly installed, the adapter will pass over the keys without interference. . . Using the alignment marks made before disassembly, 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 dean. 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 25). Figure 25 ! 7. Use plierswith care no hammers. 8. Figure 23 13 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). 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 water passage holes line up with the water passages in the volutes. MAINTENANCE 9. 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. 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. 11. Install the base volute gasket. Make sure the gasket is right 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 _ing when the pump is reinstalled. 12. Insert the four base capscrews and tighten evenly (see Figure 26). These should be easy to install if everything is correctly aligned. If not, don't force them; go back over your work and find and correct the misalignment. Bolts should be easy to insert. Make sure all marks line up. Figure 26 13. Reinstall the pressure sure tube. 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 overloadkicks off 1. Motor is wired incorrectly 2. Voltage is too low 1. 3. Pump cycles too frequently 3. See sectionbelowon too frequent cycling "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..JN_l_,_v_l_v suction of pump 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 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. Refer to instructions on wiring 2. Check with powercompany. Install heavierwiringif wire size is too small.See wiringinstructions. Motor runs but no water is delivered *(Note: Check prime before looking for other causes. Unscrew pressure gauge and see if there is water in priming hole) 3. Ejector or impeller is plugged 4. Check valve or foot valve is stuck in closed position 5. Pipes are frozen 6. Foot valve and/or strainer are buried in sand or mud 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 well 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 3. Use larger offset piping 2. Close faucets 3. Clean ejectoror impeller 4. Check possibilityof using a deep welljet pump 5. Make sure motorvoltageexactlymatches powersupply voltage. Pump cycles too frequently Air spurtsfrom faucets 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 AiP tank 1. Draintankto air volumecontroltapping. Check air volume controlfor defects.Checkfor air leaksat any connection. 2. Check connections 3. Closefaucets or valves 4. Replacefoot valve 5. Adjustor replacepressureswitch 1. 2. 3. 4. 1. 2. 3. 4. Pump is picking up prime Leak in suction side of pump Well is gaseous Intermittent overpumping of well 6. ]5 Disconnectelectricalpowerand openfaucets untilall pressureis relieved.Using automobile tire pressure gauge,checkair pressurein tank at the valvestem locatedat top oftank. If lessthanthe pressureswitchcut-in setting,pumpair intotank from outsidesourceuntilthe air pressureis the same as cut-insetting of switch.Check air valvefor leaks, usingsoapysolution,and replacecore if necessary. 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 REPAIR PARTS Multi-Stage Jet Pump .14C --12 / 17 _--18 1281 0994 Pressure Regulator 2 2O8O1095 1A 16 REPAIR PARTS Repair Parts List - Multi-Stage Key No. 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 L2-16 U30-75ZP U65-15SS U 109-99 J24-11 J105-76P J43-23 J101-26 J23-10 J23-11 U36-175D J101-33 U78-57CT U30-82ZP Jet Part Description Motor Connector Locknut- 1t2" 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.) Repair Parts List - Pressure Regulator NO. Part Number 1 1A 1B 2 2A 2B 2C 2D 2E 2F 3 4 5 6 7 8 9 10 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 U30-60ZP U30-69FTZP U36-37ZP Key * Standard hardware item; may be Part Description Pressure Regulator Body w/Seat Barbed Fitting - Elbow Valve Seat Diaphragm Assembly Regulator Guide Stem purchased locally. ** Notmailable; specifyfreightor express. Forrepairorservicetomotors,always givetheMotorModelnumberandany otherdatafoundonthemotormodel plate. This is a repair parts list, not a packing list. Please order by part number - not by key number. Diaphragm Spring Follower Lock Washer Nut 1/4-20 Reducer Bushing 1/2x1/8 NPT Pressure Gauge 0-100# Spring Spring Guide Bonnet Capscrew 5/16-18x3/4" Lg. (4 Req.) Adjusting Screw 5/16-18x2" Locknut 5116-18 17 To Order Parts, Call Sears Product Service, 1-800-366-7278 REPAIR PARTS Vertical To Order Parts, Casing Adapters and Adapter for Multi-Stage Call Sears Product Service, 1-800-366-7278 T Flanges Jet Pump 1 2 3 4 5 489 0194 Adapter Flange Casing Adapter Repair Parts List - Adapter Flange Key No. Part Number 1 2 J20-12 J2-17B 3* U30-86PS Part Description Adapter Gasket Adapter- 1-1/4")(1-1-1/4" NPT 1/2-13 x1-1/4" Long Capscrew (2 Req.) * StandardHardwareItem,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 J16-20ZZP U36-38ZP J216-14 3" U30-282ZP J 16-2377 J21-19 J21-18 J51-377 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 REPAIR PARTS Jet Packages 2" and 3" Single Pipe Jets 4" Double Pipe Jets Suction Pipe Drive Seal pple Well 2 Pipe I m Adapter 3 1_11094 Repair Parts List1_o 10Q4 Key No. 1359 1094 29670 2" Single Pipe Jets 1 1 J32P-24 J32P-18 2 3 4 5 6 7 8 9 10 11 12 • • J34P-42 J40-24 J57-1 J43-14P P122-10B J66-13 Ul1-1 J37-4 J216-13 U37-116GP 29902 3" Single Pipe Jets J32P-24 J32P-18 J34P-42 J40-25 J57-3 J43-16 J43-20C J161-3 J66-14 Jet Packages 29660 4" Double Pipe Jets J32P-24 J32P-18 J34P-42 Venturi Venturi Nozzle N40-92 Jet Body Packer Leathers (2 Req) Spacer Washer Check Valve Valve Seat N212-12P J37-4 L8-1P U11-104P B J216-14 U37-116GP Part Description m Turned Coupling (11 included) 1" NPT Offset Nipple Strainer Plastic Pipe Adapter Casing Adapter 1"x 6" T.O.E. Nipple • Not illustrated. Venturi Selection Chart Max. Depth with Jet Package No. Pump Model HP 390.253251 1 ]9 Venturi Installed 29670 2, Single Pipe 29902 3" Single Pipe 29660 4" Double Pipe J32P-24 J32P-18 90' 180' 100' 210' 100' 210' OWNER'S MANUAL CRRFTSHRN° 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 Pumpwill 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 Fw the locationof a SearsRepairServiceCenterin yourarea Call24 hoursa day,7 days a week 1-800-488-1222 ForInformationon purchasinga Sears MaintenanceAgreementor to Inquire aboutan existingAgreement call9 am - 5 pm, Monday-Saturday 1-800-827-6655 SEARS rtt_lY,.ll;£'l_;irllt]_ Amed_'s Repair Specialists Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.
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