Multiquip ST6125G User's Manual
Contents
1. A high resistance reading would indicate a good insulation meaning very little current is escaping through the insulation While a relatively low resistance reading would indicate a poor insulation meaning a significant amount of current may be leaking through and along the insulation MAINTENANCE NOTICE Insulation resistance is moisture and temperature sensitive When temperature increases insulation resistance decreases and vice versa When performing this test measurement perform the test using the same test parameters as used in the initial testing Contact an authorized Multiquip service center if the measured cable insulation is 10 megohms or less POWER CABLE INSULATION ap SZ SJ GROUND WIRE GREEN D 500 VDC INSULATION TEST METER Read and follow the manufacturer s user s manual prior to operating insulation tester megaohm meter This meter generates a test voltage of 500 volts or greater Only qualified and trained personnel should use this equipment The possibility exists of severe electrical shock electrocution even death when using insulation tester PAGE 24 ST4125G ST6125G SUBMERSIBLE PUMP OPERATION MANUAL REV 0 11 18 10 TROUBLESHOOTING Table 8 Pump Troubleshooting SYMPTOM POSSIBLE PROBLEM SOLUTION Check that the proper voltage 230 or 460 VAC 60 Hz 3 phase is being supplied to the pump Also Incorrect volt2. eB alae FLOAT SWITCH CPP 2 TERMINAL BLOCK SIS mes Eb JP OVERLOAD RELAY EXTERNAL 3 PHASE OOr 22 230 OR 460 VOLT Li NL2 L3 1 T Tj ol POWER SOURCE RED 9 SY HEATER 2 m GRN GROUND 3 PHASE AC OUTPUT POWER CABLE FLOAT SWITCH INPUTS 3 PHASE AC INPUT POWER CABLE 1 SECURE FLOAT SWITCH WIRES TO PUMP DISCHARGE HOSE SWITCH CONNECT 3 STOP FLOAT TO TERMINALS 1 AND 2 SWITCH CONNECT TO TERMINALS 3 AND 4 PUMPING RANGE CONTROL BOX INSTALLATION IS TO BE PERFORMED BY A LICENSED ELECTRICIAN OR QUALIFIED PERSONNEL THE POSSIBILITY OF ELECTRICAL SHOCK OR ELECTROCUTION EXISTS WHICH COULD CAUSE SEVERE BODILY HARM EVEN DEATH Figure 9 Three Phase Control Box Pump System Diagram ST4125G ST6125G SUBMERSIBLE PUMP OPERATION MANUAL REV 0 11 18 10 PAGE 19 OPERATION Pump Placement 1 Attach a suitable lifting chain to the eye bolts Figure 10 on the pump Use a crane or similar lifting device and lower the pump into place For applications where there is an excessive amount of mud grit or silt the use of a support platform is desirable CONNECT TO CONTROL BOX oe 4 or 6 INCH DISCHARGE Figure 10 Placing the Submersible Pump Correct Upright Position 2 Make sure the pump is always placed in an upright positio
3. is run dry for short periods of time PAGE 10 ST4125G ST6125G SUBMERSIBLE PUMP OPERATION MANUAL REV 0 11 18 10 ST4125G ST6125G COMPONENTS 020202000 20290 09090 Figure 2 Submersible Pump Components Figure 2 shows the location of the basic components for the ST4125G and ST6125G submersible pumps Listed below is a brief explanation of each component 1 Strainer Base This strainer base is made of stainless steel which is resistant to hardware corrosion For dewatering purposes always place the strainer base on a platform Volute Impeller Impellers are constructed of cast ductile iron to minimize wear and prolong service life Electric Motor The ST4125G pump utilizes a 60 Hz three phase 230 460 VAC 10 HP electric motor and the ST6125G pump utilizes a 60 Hz three phase 230 460 VAC 15 HP electric motor Consult with a licensed electrician before connecting motor to a power source Observe all city and local safety codes Discharge Port Connect a 4 inch hose ST4125G or 6 inch hose ST6125G to this port Remember to adequately support the discharge hose to avoid stress on the pump 5 AC Power Cable These pumps are supplied with a 50 ft 15 2 meters AC power cable Always check the cable for signs of wear NEVER use a defective power cable Replace the cable immediately if the cable is worn or defective Eye Bolts Always lift the submersible pump by the eye b
4. respiratory protection hearing protection steel toed boots and other protective devices required by the job or city and state regulations O90000 Avoid wearing jewelry or loose fitting clothes that may snag on the controls or moving parts as this can cause serious injury NEVER operate this equipment when not feeling well due to fatigue illness or when under medication E NEVER operate this equipment under the influence of drugs or alcohol Ii ALWAYS clear the work area of any debris tools etc that would constitute a hazard while the equipment is in operation E No one other than the operator is to be in the working area when the equipment is in operation DO NOT use the equipment for any purpose other than its intended purposes or applications NOTICE This equipment should only be operated by trained and qualified personnel 18 years of age and older E Whenever necessary replace nameplate operation and safety decals when they become difficult read B Manufacturer does not assume responsibility for any accident due to equipment modifications Unauthorized equipment modification will void all warranties E NEVER use accessories or attachments that are not recommended by Multiquip for this equipment Damage to the equipment and or injury to user may result ALWAYS know the location of the nearest re fire extinguisher i ALWAYS know the location of the nearest first aid kit ALW
5. to cool before servicing Keep machine in proper running condition ELECTRICAL SAFETY i The electrical voltage required to operate e pump can cause severe injury or even death N through physical contact with live circuits ALWAYS disconnect electrical power from pump before performing maintenance on pump E To reduce the risk of electric shock connect only to a circuit protected by a Ground Fault Circuit Interrupter PAGE 6 ST4125G ST6125G SUBMERSIBLE PUMP OPERATION MANUAL REV 0 11 18 10 SAFETY INFORMATION NOTICE ALWAYS make certain that the voltage supplied to the pump is correct Always read the pump s nameplate to determine what the power requirements are Power Cord Cable Safety NEVER let power cords or cables lay in water NEVER stand in water while AC power cord is connected to a live power source E NEVER use damaged or worn cables or cords Inspect for cuts in the insulation m NEVER grab or touch a live power 1 cord or cable with wet hands The yo s possibility exists of electrical shock in et electrocution or death E OM sure power cables are securely connected to the motor s output receptacles Incorrect connections may cause electrical shock and damage to the motor E NEVER attempt to use the power cord as a lifting or lowering device for the pump NOTICE ii ALWAYS make certain that proper power or extension cord has been select
6. will draw These water resistant control boxes provide electronic overload protection watertight enclosure and glands to CB12 14 E prevent water from leaking into the box and a float switch o interface 6 6 9 6 9 D Each control box will require the use of two SW 1WOPA Figure 7 Electrical Control Box float switches no plug bare wires for direct connection Model CB12 14 to the control box Reference Figure 21 for a schematic reprensentation of the control box NOTICE Contact Multiquip sales department to order control boxes as listed in Table 3 Table 3 Control Box Specifications Thermal Float p Protection Capability 230 VAC CB12 ST 4125G Three Phase 67 73 460 VAC 460 VAC 12 ST 6125G 230 VAC K 39 YES YES YES Three Phase PAGE 14 ST4125G ST6125G SUBMERSIBLE PUMP OPERATION MANUAL REV 0 11 18 10 CONTROL BOX INSTALLATION Control Box Installation The following procedure outlines the steps for connecting the pump to a control box Ay DANGER Y The ST4125G and ST6125G submersible box This control box contains the necessary electronics float switch connections to operate the pump Remember this control sources of power before installing or servicing There exists the possibility of electrocution electric shock or burn which can cause severe bodily harm or even pumps are designed to work with a control box contains hazard
7. 21 1244 Fax 800 537 3927 Fax 310 537 4259 Fax 310 943 2238 MQ Parts Department 800 427 1244 Fax 800 672 7877 310 537 3700 Fax 310 637 3284 Warranty Department 800 421 1244 Fax 310 537 1173 310 537 3700 UNITED KINGDOM Multiquip UK Limited Head Office Carr Fed Mexico Puebla KM 126 5 Momoxpan Cholula Puebla 72760 Mexico Contact pmastretta cipsa com mx Tel 52 222 225 9900 Fax 52 222 285 0420 Tel 0161 339 2223 Fax 0161 339 3226 Unit 2 Northpoint Industrial Estate Globe Lane Dukinfield Cheshire SK16 4UJ Contact sales multiquip co uk CANADA Multiquip 4110 Industriel Boul Laval Quebec Canada H7L 6V3 Contact jmartin multiquip com Tel 450 625 2244 Tel 877 963 4411 Fax 450 625 8664 COPYRIGHT 2010 MULTIQUIP INC Multiquip Inc and the MQ logo are registered trademarks of Multiquip Inc and may not be used reproduced or altered without written permission All other trademarks are the property of their respective owners and used with permission This manual MUST accompany the equipment at all times This manual is considered a permanent part of the equipment and should remain with the unit if resold The information and specifications included in this publication were in effect at the time of approval for printing Illustrations descriptions references and technical data contained in this manual are for guidance only and may not be considered as binding Multiquip I
8. AYS know the location of the nearest phone or keep a phone on the job site Also know the phone numbers ofthe nearest ambulance doctor and fire department This information will be invaluable in the case of an emergency ST4125G ST6125G SUBMERSIBLE PUMP OPERATION MANUAL REV 0 11 18 10 PAGE 5 SAFETY INFORMATION PUMP SAFETY DANGER NEVER operate the equipment an explosive atmosphere or near combustible materials An explosion or fire could result causing severe bodily harm or even death Vy Accidental starting can cause severe injury or death ALWAYS place the ON OFF switch in the OFF position DO NOT place hands or fingers inside pump when pump is running M NEVER disconnect any emergency safety devices These devices are intended for operator safety Disconnection of these devices can cause severe injury bodily harm or even death Disconnection of any of these devices will void all warranties E Risk of Electric Shock This pump has not been investigated for use in swimming pool or marine areas DO NOT restrict the flow of the discharge hose as it may cause the pump to overheat Be careful of discharge hose whipping under pressure ALWAYS check pump oil level only when pump is cool Expansion due to heat may cause hot oil to spray from the oil plug when the oil plug is removed The possibility of severe scalding may exist NOTICE ALWAYS
9. OPERATION MANUAL MULTIQUIP MODEL ST4125G ST6125G SUBMERSIBLE PUMP Revision 0 11 18 10 To find the latest revision of this publication visit our website at www multiquip com THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES ST4125G ST6125G Submersible Pump Table 00 1 000400 2 Parte Ordering 3 Safety Information Pm 4 7 creo T 8 Exp 9 General Information 10 COMA ONG TMS 11 Float 12 14 Control Box Installation 15 16 230 460 Vac Voltage Selection 17 Control Box Power Connections 18 Control Box Wiring Layout 19 Operation ei pl ad ARR D cafa oae 20 21 zung zig cr 22 25 Control Box Wiring Diagram 26 TABLE OF CONTENTS PAGE 2 ST4125G ST6125G SUBMERSIBLE PUMP OPERATION MANUAL REV 0 11 18 10 ST4125G ST6125G SUBMERSIBLE OPERATION MANUAL REV 0 11 18 10 PAGE 3 SAFETY INFORMATION Do not operate or service the equ
10. RING DIAGRAM THREE PHASE WIRING CB 12 CB 14 CONNECTIONS POWER EXTERNAL 3 PHASE 230 OR 460 VOLT POWER SOURCE CIRCUIT BREAKER RED AWG 8 RED AWG 8 RED AWG 8 GROUND CONTROL SEE TABLE 2 TRANSFORMER FOR CORRECT HEATER SELECTION 1 2 AMP GRN OVERLOAD RELAY ON INDICATOR LAMP WHT TERMINAL BLOCK e EE SELECTABLE 230 OR 460 STOP START VOLTAGE INPUTS FLOAT FLOAT SWITCH SWITCH L1 L2 L1 L2 L 460V neur Mu ERO 3 H1 H3 H2 H4 H1 H3 H2 H4 CB 12 CB 14 230V INPUT m dx Cx JUMPER L w EEN Figure 21 CB12 CB14 Control Box Wiring Diagram PAGE 26 ST4125G ST6125G SUBMERSIBLE PUMP OPERATION MANUAL REV 0 11 18 10 NOTES ST4125G ST6125G SUBMERSIBLE PUMP OPERATION MANUAL REV 0 11 18 10 PAGE 27 OPERATION AND PARTS MANUAL HERE S HOW TO GET HELP PLEASE HAVE THE MODEL AND SERIAL NUMBER ON HAND WHEN CALLING UNITED STATES Multiquip Corporate Office 18910 Wilmington Ave Carson CA 90746 Contact multiquip com Service Department 800 421 1244 310 537 3700 Technical Assistance 800 478 1244 MEXICO MQ Cipsa Tel 800 4
11. Table 3 is required Control boxes will provide thermal overload protection PAGE 8 ST4125G ST6125G SUBMERSIBLE PUMP OPERATION MANUAL REV 0 11 18 10 ST4125G ST6125G SUBMERSIBLE PUMP DIMENSIONS 34 21 in 869 mm 4 57 in 116 mm x Y 28 9 in 734 mm 72 mm ST6125G 7 in mm 11 89 in 302 mm Figure 1 ST4125G ST6125G Pump Dimensions ST4125G ST6125G SUBMERSIBLE PUMP OPERATION MANUAL REV 0 11 18 10 PAGE 9 ST4125G ST6125G GENERAL INFORMATION The Multiquip Model ST4125G 5761256 submersible pumps are designed to pump water These pumps work best when faced with high head applications where you need an appreciable flow Each pump has dual voltage capability easily switched between 230 and 460 volts These pumps have a heavy duty cast iron body that is very durable and able to withstand rough handling The ST4125G comes with a 4 inch NPT threads for standard hose connections while the ST6125G is equipped with 6 inch flange fitting The mechanical seal of these pumps operates within an oil filled chamber that provides positive lubrication This helps prevent damage in the event the pump
12. Y 3000 HOURS LAY PUMP FLAT ONITS SIDE Figure 17 Adding Lubrication Inspecting Lubrication Oil Mechanical Seal 1 Block the oil fill opening with a finger and roll pump to one side to drain Figure 18 oil into a small transparent container If oil is cloudy milky or has water in it indicates that mechanical seal is defective or worn Replace mechanical seal OIL FILL LAY PUMP FLAT OPENING ON ITS SIDE DISCOLORATION OF OIL MILKY INDICATES A WORN OR DEFECTIVE MECHANICAL SEAL REPLACE MECHANICAL SEAL Figure 18 Lubrication Oil Inspection NOTICE When replacing the oil in the oil chamber shaft seal MUST be changed at the same time PAGE 22 ST4125G ST6125G SUBMERSIBLE PUMP OPERATION MANUAL REV 0 11 18 10 MAINTENANCE Impeller Removal NOTICE Clearance between impeller and wear plate should Refer to the the following procedure and Figure 19 for the removal of the impeller be between 011 019 in 0 3 0 5 mm If impeller is defective or badly worn replace immediately 1 Remove oil plug item 193 and o ring item 194 Drain oil from oil chamber as referenced in Figure 18 Remove suction strainer ring stand item 84A Remove the six suction cover bolts and washers items 188A 188B that secure the suction cover item 189 to the pump housing item 50 Remove suction cover Long Term Storage 1 Area must be free from excessive humidity corrosive
13. age amps check that there is an adequate amount of current amps to run the pump Check power source circuit breaker Check electrical connec If using float switches check wiring inspect power tions cord Blown power fuse or tripped Replace fuse check circuit breaker check cause of Pump Fails To Start circuit breaker blown fuse or tripped breaker Impeller locked Disconnect power cord and check for clogging Un clog pump Check overload protection device Use multimeter to check motor insulation Insulation resistance must be approximately 15 megaohms If resistance is low disassemble pump motor and bake windings to dry them Defective motor and pump Check for excessive bearing wear if worn replace bearings bearings Replace motor if defective TeSa Lay hose flat un kinked Remove clog from hose line charge hose Wet motor windings Pump Fails to Deliver Full Use a voltmeter to check voltage while pump is Output energized Voltage must be within 10 Check Low voltage power source no load and load If an extension cord is used make sure it has adequate current carrying capacity for the required length See Table 4 Impeller worn Replace impeller Waterin Mechanical Defective mechanical seal Replace mechanical seal Seal Oil Loose Oil Fill Plug Tighten securely Apply teflon tape ST4125G ST6125G SUBMERSIBLE PUMP OPERATION MANUAL REV 0 11 18 10 PAGE 25 12 14 CONTROL BOX WI
14. age to the pump Please make sure that the correct voltage and phase are applied to the pump at all times Power Cord Requirements When routing the 230 460 VAC 60 Hz 3 phase power via a power cord to the control box ALWAYS use the correct wire size Please refer to Table 4 to determine the correct wire size Incorrect wire size can adversely affect the performance of the pump and may ultimately burn out the pump motor Table 4 Power Cord Length and Wire Size 10 FT 20 FT 30 FT 50 FT 8 0 m 6 0 m 9 1 m 15 2 m ST4125G ST6125G SUBMERSIBLE PUMP OPERATION MANUAL REV 0 11 18 10 PAGE 15 CONTROL BOX INSTALLATION Connecting SW 1WOPA Float Switches to Control Box 1 Removethe float switch input connector housing then route the float switch wires through the cable gland on the control box Attach the wires of the float switch to the terminal block as indicated by Table 5 and Figure 9 Table 5 Dual Float switch Connections Terminal Wire Block No Color TB1 A1 Black TB1 A2 White TB1 A3 Black p TB1 M White 2 Tighten the connector housing to ensure a tight fit between the cord and the connector body This will prevent the cable from pulling out of the terminal block and also prevent moisture from entering the control box 3 Determine the tether length of the float switch wires then secure float switch wires to pump discharge hose See Figure 3 and Table 2 to determine the pumping
15. away from dirt and debris ST4125G ST6125G SUBMERSIBLE PUMP OPERATION MANUAL REV 0 11 18 10 PAGE 21 MAINTENANCE Lubrication To check the lubrication oil level of the mechanical seal perform the following Checking Lubrication Oil Level T Ji Lay the pump Figure 17 on its side with the oil plug facing upwards Remove oil fill plug Visually inspect oil plug hole to verify that oil chamber is full enough to cover seal spring When reinstalling oil fill plug apply teflon tape to prevent leaking 4 When removing oil fill plug please note 3 fa that pressure may have built up in the chamber DO NOT fully remove plug until P pressure has been relieved Turn oil fill plug slowly to relieve pressure Changing Lubrication Oil 1 If lubrication oil level is low block the fill opening with a finger and roll pump to one side to drain oil into a small container Use a funnel Figure 17 and fill oil chamber with ISO VG32 lubrication oil or equivalent Oil chamber capacity is 74 4 oz 2 2 liters Fill to 75 8096 capacity to allow for expansion Replace lubrication oil once a year or 3 000 hours E REMOVE FILL PLUG AND VISUALLY INSPECT THAT OIL CHAMBER IS FULL ENOUGH TO COVER SEAL SPRING FILL TO 75 80 CAPACITY APPROXIMATELY 74 4 OZ 2 2 LITERS E FILL WITH ISO VG32 LUBRICATION OIL OR EQUIVALENT W CHECK HYDRAULIC OIL ONCE A YEAR OR EVER
16. e input power cord to the voltage source Remember to provide a means of disconnecting the power from the control box circuit breaker or quick disconnect switch Also make sure to provide a good earth ground to the control box NOTICE It is recommended that the power being supplied to the control box ALWAYS be connected to a circuit breaker or a quick disconnect switch This safety feature allows for quick removal of power from the control box in the event of an emergency 3 Phase Power Installation Output To Pump 1 The 3 phase output power cord should have four wires Each wire is color coded The colors are RED WHITE BLACK and GREEN Remove the 3 phase AC output power connector housing on the control box then route the output power cable through the cable gland on the control box Attach the wires to the AC terminals on the overload relay module as indicated by Table 7 and Figure 9 Table 7 30 230 460 VAC Output Power Connections PAGE 18 ST4125G ST6125G SUBMERSIBLE PUMP OPERATION MANUAL REV 0 11 18 10 12 14 CONTROL BOX WIRING LAYOUT MOUNT CONTROL BOX IN AN UP LEFT VERTICAL POSITION AS SHOWN O CONTROLLER gt TRANSFORMER Fi E 4 A o
17. ed for the job See Cable Selection Chart in this manual Grounding Safety ALWAYS make sure pump is grounded NEVER use gas piping as an electrical ground ALWAYS make sure that electrical circuits are properly grounded to a suitable earth ground ground rod per the National Electrical Code NEC and local codes before operating generator Severe injury or death by electrocution can result from operating an ungrounded motor Control Box Safety I ALWAYS have a qualified electrician perform the control box installation The possibility exists of electrical shock or electrocution NOTICE ALWAYS mount control box in a vertical position protected from harsh environmental elements LIFTING SAFETY When raising or lowering of the pump is required always attach an adequate rope or lifting device to the correct lifting point handle on the pump NOTICE DO NOT lift machine to unnecessary heights B NEVER lift the equipment while the electric motor is running TRANSPORTING SAFETY NOTICE ALWAYS shut down pump before transporting B ALWAYS tie down equipment during transport by securing the equipment with rope ENVIRONMENTAL SAFETY DECOMMISSIONING DO NOT pour waste or oil directly onto the ground down a drain or into any water source Contact your country s Department of Public Works or recycling agency in your area and arrange for proper disposal of any electrical components waste o
18. etting of the float switches The stop float switch contacts will open when the water level is low and power will be removed from the pump s electric motor Once the water level has risen back to the appropriate level the start floatswitch contacts will close and power will be restored to the pump s motor Reset Button 1 When the electronic overload module detects an overload condition the pump will shut down Check the pump and correct the cause of ther overload Letthe pump cool down then press the RESET button see Figure 15 on the front of the control box to restore power Figure 15 RESET Button Shut Down 1 Place the 3 position operation switch on the control box to the OFF position Figure 16 OF F MANUA T AUTO Figure 16 Manual Off Auto SW OFF Position Verify that the control box power ON light is OFF Turn the circuit breaker or quick disconnect switch to the OFF position Using a suitable lifting device lift the pump up from its current position and place on a secure flat surface Remove the discharge hose from the discharge port on the pump Remove all power cables and float switches from the control box Place cables and float switches in a suitable container where they will not get damaged If the pump was used to pump mud grit or silt flush vigorously with clean water Wipe off any mud or debris that might have attached itself to the pump Store pump in a clean dry place
19. form electrical insulation testing Electrical insulation starts to age as soon as it is made Harsh environments especially those with extreme temperature changes and or chemical contamination cause further deterioration of the insulation power cord As a result personnel safety electrocution shock and power reliability can suffer resulting in higher operating cost and maintenance What is Insulation Resistance Testing Insulation resistance testing applies a regulated stabilized high voltage Figure 20 typically 500 VDC or greater across a dielectric power cord Measuring the amount of leakage current flowing through the dielectric will yield a resistive measurement in megohms Insulating Material Testing To verify the integrity of the pump s insulating material power cable it will be necessary to perform an electrical insulation test Any electrical insulation must have the opposite characteristic as the conductor it should resist the flow of current keeping it within the conductor To measure the IR current x resistance the use of an IR tester must be employed This IR tester is a portable device that is a resistance meter ohmmeter with a built in DC generator that develops a high DC voltage The high DC voltage from the IR tester is usually 500 VDC or more This voltage when applied causes a small current to flow through and over the insulation s surfaces The tester provides a direct reading of IR in megohms
20. gases vapors or vibrations which might damage the pump item 189 2 Store pump in a vertical position on a pallet or stand 4 Remove impeller cap nut item 188 and washer item 3 Coil up the cable and seal the open end control box 66 from motor shaft wires with waterproof tape or a cable cap This will i prevent moisture from penetrating into the motor which 5 Remove impeller item 49 gap washer item 49A and could cause severe damage to the windings impeller key item 9A from motor shaft 6 R AE 4 Give all unpainted surfaces a light coat of oil or grease to prevent corrosion 5 fnew pumps are stored for more than two months turn the impeller by hand every two months to prevent the mechanical seal faces from seizing up Failure to do this may result in seal damage when the pump is started Water Tank Storage Figure 19 Impeller Removal 1 If an installed pump immersed in water has not been in operation for a long period of time check the insulation resistance and run the pump for 30 minutes every month If the pump cannot be run due to lack of water in the tank inspect the pump and turn the impeller by hand each month and prior to putting the pump back into service If insulation drops below 10 megohms contact an authorized Multiquip service center ST4125G ST6125G SUBMERSIBLE PUMP OPERATION MANUAL REV 0 11 18 10 PAGE 23 Electrical Insulation Testing Why per
21. he tether MULTIQUIP EXTERNAL 3 PHASE 230 OR 460 VOLT POWER SOURCE INPUT POWER TO CONTROL BOX CIRCUIT BREAKER EI DISCHARGE HOSE Mounting The Float Switches 1 Determine the required cord tether length as shown in Figure 3 and Table 2 2 Place the cord into the clamp as shown in Figure 6 Secure the clamp to the discharge hose as shown in Figure 6 DO NOT install cord under hose clamp 4 Usinga screwdriver tighten the hose clamp DO NOT over tighten Make sure the float cord is not allowed to touch the excess hose clamp band during operation CAUTION X HIGH VOLTAGE CONTROL BOX PUMP POWER CABLE FLOAT SWITCH 7 CABLES 2 PUMP ON MS MODEL SW 1WOPA FLOAT SWITCH 2 PUMPING RANGE Figure 6 Float Switch Application ST4125G ST6125G SUBMERSIBLE PUMP OPERATION MANUAL REV 0 11 18 10 PAGE 13 FLOAT SWITCHES CB12 CB14 Control Boxes AUN For remote pumping applications both submersible pumps require a control box Figure 7 VY um E m AAs VOLTAGE 12 control box requires 230VAC 3 phase input MULTIQUIP voltage for normal operation while the CB14 control box requires 460VAC 3 phase input voltage Reference Table 3 e for the desired heater The heater size is determined by the RY the full load amps the pump
22. ipment before reading the entire manual Safety precautions should be followed at all times when operating this equipment e Failure to read and understand the safety O messages and operating instructions could result in injury to yourself and others SAFETY MESSAGES The four safety messages shown below will inform you about potential hazards that could injure you or others The safety messages specifically address the level of exposure to the operator and are preceded by one of four words DANGER WARNING CAUTION or NOTICE SAFETY SYMBOLS DANGER Indicates a hazardous situation which if not avoided WILL result in DEATH or SERIOUS INJURY Indicates a hazardous situation which if not avoided COULD result in DEATH or SERIOUS INJURY Indicates a hazardous situation which if not avoided COULD result in MINOR or MODERATE INJURY NOTICE Addresses practices not related to personal injury Potential hazards associated with the operation of this equipment will be referenced with hazard symbols which may appear throughout this manual in conjunction with safety messages Safety Hazard Burn hazards Electric shock hazards Rotating parts hazards Pressurized fluid hazards PAGE 4 ST4125G ST6125G SUBMERSIBLE PUMP OPERATION MANUAL REV 0 11 18 10 SAFETY INFORMATION GENERAL SAFETY NEVER operate this equipment without proper protective clothing shatterproof glasses
23. n not tilted Figure 11 Never position the pump directly on a soft loose bottom To attain maximum pumping capacity and prevent excessive wear position the pump so it will not burrow itself into sand or clay b b b b bb b Figure 11 Tilted Position Incorrect Control Box Operation Manual Mode PAGE 20 ST4125G ST6125G SUBMERSIBLE PUMP OPERATION MANUAL REV 0 11 18 10 OPERATION 1 4 From the voltage source set the circuit breaker or quick disconnect switch to the ON position For manual operation of the pump place the 3 position operation switch Figure 12 on the control box in the MANUAL position OFF MANUAL AUTO Figure 12 Manual Off Auto SW Manual Position Verify that the ON indicator Figure 13 on the control box is LIT This means that power is being supplied to the control box Figure 13 Control Box Power ON Indicator In the manual mode the pump will run continuously Pay close attention when running the pump in this mode DAMAGE to the pump may occur if pump is not fully immersed in water Control Box Operation Auto Mode 1 operate the pump automatically float switches place the 3 position operation switch in the AUTO position Figure 14 OFF MANUAL 2 AUTO Figure 14 Manual Off Auto SW Auto Position In the AUTO mode the pump will run as long as there is a sufficient amount of water This amount of water is determined by the s
24. nc reserves the right to discontinue or change specifications design or the information published in this publication at any time without notice and without incurring any obligations Your Local Dealer is 2 MULTIQUIP
25. olts using a chain and lifting device capable of lifting about 400 Ibs NEVER lift the pump by its power cord Lifting the pump by the power cord will cause undue stress on the cord and ultimately the cord will become dislodged from the pump Mechanical Seal Oil This oil filled seal provides lubrication when running the pump dry NEVER run the pump dry Running the pump dry will cause severe damage to the pump Mechanical Seal Oil Plug Remove this plug to check and add ISO VG32 lubrication oil Mobile DTE 24 turbine oil 90 or equivalent to the oil chamber This oil protects the mechanical seal Oil chamber should be full enough to cover seal spring ST4125G ST6125G SUBMERSIBLE PUMP OPERATION MANUAL REV 0 11 18 10 PAGE 11 FLOAT SWITCHES Mechanical Float Switch Mechanically activated float switches offer a reliable low current control for dewatering applications How It Works The mechanical float switch control will turn ON close when the float tips 45 above horizontal indicating a high level and turns OFF opens when the float switch drops 45 below horizontal Reference Figure 4 and Figure 5 Maximum pumping range is 120 degrees See Figure 3 below Figure 3 Pumping Range Float Switch Pumping Range The pumping range of the pump is determined by the float switch tether cord Use Table 2 as guide line to determine your required pumping range Pumping ranges are based on non turbulen
26. ous voltages Disconnect all death DANGER When installing the control box the W possibility exists of electrical shock electrocution and possibly death NEVER have untrained personnel perform the installation ALWAYS have qualified service personnel licensed electrician perform the installation j Explosion or Fire Hazard exists if this pump oi is used with flammable liquids DO NOT use cM this pump with flammable liquids DO NOT GAME instal this pump in hazardous locations as defined by the National Electrical Code ANSI NFPA 70 CONTROL BOX MOUNTING Mount the control box in an upright vertical position Make sure the control box is securely fastened to a flat surface that is free of dust dirt moisture or any elements that may contaminate or erode the electronic components of the control box 3 Phase Power Installation Input The ST 4125G ST6125G submersible pumps require 230 or 460V 3 phase power for normal operation Each pump is shipped from the factory in the 230 VAC configuration To change the voltage setting from 230 VAC to 460 VAC refer to the 230 460 VAC voltage selection section Figure 8 If you cannot determine what your pump s power requirements are look at the vendor supplied identification name tag attached to the pump or please contact Multiquip s Service Technical Assistance department Applying incorrect power voltage phasing to the submersible pump can cause severe dam
27. place the pump in an upright position on a platform before using The platform will prevent the pump from burrowing itself on soft sand or mud NEVER operate pump on its side DO NOT allow the pump to freeze in water NEVER leave an open pump chamber unattended B ALWAYS keep the machine in proper running condition DO NOT attempt to thaw out a frozen pump by using a torch or other source of flame Application of heat in this manner may heat the oil in the seal cavity above the critical point causing pump damage DO NOT pump water with a temperature greater than 104 F DO NOT pump liquids containing acid or alkali ii ALWAYS check strainer before pumping Make sure strainer is not clogged Remove any large objects dirt or debris from the strainer to prevent clogging ALWAYS use a large basket strainer when pumping water that contains large debris ii ALWAYS flush pump clean after use when pumping water concentrated with heavy debris It is very important to always flush the pump before turning it off to prevent clogging E Fix damage to machine and replace any broken parts immediately ALWAYS store equipment properly when it is not being used Equipment should be stored in a clean dry location out of the reach of children and unauthorized personnel E NEVER lubricate components or attempt service on running machine E NEVER run pump dry i ALWAYS allow the machine a proper amount of time
28. r oil associated with this equipment B When the life cycle of this equipment is over it is recommended that the pump casing and all other metal parts be sent to a recycling center Metal recycling involves the collection of metal from discarded products and its transformation into raw materials to use in manufacturing a new product Recyclers and manufacturers alike promote the process of recycling metal Using a metal recycling center promotes cost savinas ST4125G ST6125G SUBMERSIBLE PUMP OPERATION MANUAL REV 0 11 18 10 PAGE 7 ST4125G ST6125G SUBMERSIBLE PUMP SPECIFICATIONS Table 1 Specifications Max Solids 078 in 2 mm 078 in 2 mm 1 380 gallons minute 111 ft 33 8 meters 10 HP 7 5 kw 15 HP 11 kw Voltage Phase 230 460 30 230 460 30 D D 180 230V Starting Amps 90 460V TBD e EnclosureType 6 00068 104 F 40 C 33 5 in 85 09 cm 1 Motor Rotation Let pump hang freely from a lifting device Start and stop pump while observing movement kick of pump If connected correctly the impeller will rotate clockwise CW as viewed from above If pump rotates counterclockwise interchange any two phases from the power source 2 Mechanical Seal Oil Use ISO VG32 lubrication oil Mobile DTE 24 turbine oil 90 or equivalent Fill oil chamber 75 to 8596 full allow air space for expansion 3 Control Box For unattended operation CB12 or CB14 Control Box
29. range PAGE 16 ST4125G ST6125G SUBMERSIBLE PUMP OPERATION MANUAL REV 0 11 18 10 230 460 VAC VOLTAGE SELECTION 230 460 VAC Voltage Selection The ST4125G ST6125G submersible pumps are factory set at 230 VAC To change the voltage from 230 VAC to 460 VAC reference Figure 8 REMOVE SLEEVING 460 VAC HIGH VOLTAGE MOTOR WINDING CONFIGURATION 230 VAC LOW VOLTAGE MOTOR WINDING MOTOR STAR WITH 8 WINDING NEUTRAL w STAR WITH NEUTRAL Figure 8 230 460 VAC Electric Motor Windings ST4125G ST6125G SUBMERSIBLE PUMP OPERATION MANUAL REV 0 11 18 10 PAGE 17 12 14 CONTROL BOX POWER CONNECTIONS 3 Phase Power Installation Input to Control Box 1 The 3 phase input power cord should have four wires Each wire is color coded The colors are RED WHITE BLACK and GREEN Remove the 3 phase AC input connector housing from the control box then route the three phase input power cable through the cable gland on the control box Attach the wires to the AC terminal block inside the control box as indicated by Table 7 and Figure 9 Table 6 30 230 460 VAC Input Power Connections Input Power Terminal Block RED Tighten the connector housing to ensure a tight fit between the power cord and the connector body This will prevent the cable from pulling out of the terminal block and also prevent moisture from entering the control box Connect the other end of the 3 phas
30. t conditions Range may vary due to water temperature and cord shape Please note as the tether length increases so does the variance of the pumping range Design Features Float switch housings are constructed of high impact corrosion resistant polypropylene with mechanically activated snap action contacts Suitable for most liquid environments E Hermetically sealed Thick walled non corrosive PVC plastic enclosure E Pressure tested to 30 ft 9 meters Standard SJO 16 gauge 2 conductor cord 20 ft 6 09 m CONTACTS CLOSED ON OFF STEEL RAMP BALL Figure 4 Float Switch Closed CONTACTS ON OFF BALL RAMP Figure 5 Float Switch Open Table 2 Pumping Range 2 in 4 in 8in 10 in 12 in 14 in 16 in 5 08 10 16 15 24 20 32 25 4 30 48 35 56 40 46 Ras 6 in 10in 14 in 18 in 22in 27 in 31 in 35 in umping Range Fac em 254 cm 35 56 45 72 cm 55 88 cm 68 58 78 74 88 9 cm PAGE 12 ST4125G ST6125G SUBMERSIBLE PUMP OPERATION MANUAL REV 0 11 18 10 FLOAT SWITCHES Float Switches For unattended operation of the submersible pump two single float switches Model SW 1WOPA will be required These float switches can be connected directly to a control box bare wires and will allow the pump to turn on and off depending on the length of t
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