Multiquip ST-3050D User's Manual
Contents
1. 2002 MULTIQUIP INC OPERATION AND PARTS MANUAL Multiquip Submersible Pump Model ST 3050D Revision 1 11 18 02 MULTIQUIP INC PARTS DEPARTMENT ARs 18910 WILMINGTON AVENUE 800 427 1244 CARSON CALIFORNIA 90746 FAX 800 672 7877 310 537 3700 SERVICE DEPARTMENT 800 421 1244 NATIONWIDE 800 478 1244 MULTIQUIP x 310 537 3927 FAX 310 537 4259 HERE S HOW GET HELP PLEASE HAVE THE MODEL AND SERIAL NUMBER ON HAND WHEN CALLING PARTS DEPARTMENT 800 427 1244 or 310 537 3700 FAX 800 672 7877 or 310 637 3284 SERVICE DEPARTMENT 800 478 1244 or 310 537 3700 FAX 310 537 4259 WARRANTY DEPARTMENT 800 421 1244 EXT 279 or 310 537 3700 FAX 810 537 1173 MAIN 800 421 1244 or 310 537 3700 FAX 310 537 3927 PAGE 2 ST 3050D PARTS amp OPERATION MANUAL REV 1 11 18 02 ST 3050D SUBMERSIBLE PUMP TABLE OF CONTENTS Here s How Get nus 2 Table Of COmMent ba 3 Parts Ordering Procedures 4 Safety Message Alert Symbols 5 Rules For safe Operation 6 7 Specifications Pump 7 General Information 8 9 Specification and part number are ST 3050D Submersible q change Pump amp m Without notice COMPONEN S2. NOTE Transformer settings are for CB 200 Control lt Box only L1 jumper INPUT TAB ef Yo lof Y H1 H3 H2 H4 SERIES CONNECTION WARNING ALWAYS make sure that the transformer is set tothe correct output voltage Incorrecttransformer output voltage settings can cause severe damage tothe pump SELECTABLE 230 OR 460 VAC VOLTAGE INPUTS 460V INPUT H1 H3 H2 PARALLEL CONNECTION Figure 6 Transformer AC Voltage Settings Jumper Tabs PAGE 16 ST 3050D PARTS amp OPERATION MANUAL REV 1 11 18 02 ST 3050D SUB PUMP CONTRL BOX WIRING DIAGRAM CB200 THREE PHASE WIRING EXTERNAL 3 PHASE 230 OR 460 VOLT ELECTRONIC POWER SOURCE CON N ECTIONS emus M O L CIRCUIT BREAKER CONTROL TRANSFORMER 3 SEE FIGURE 1 FOR JUMPER SELECTION 50 230 460 SELECTION GROUND F1 1 2 INDICATOR MANUAL CONTACTOR 5 HP 23 A1 A2 WARNING ONLY ALICENSED ELECTRICIAN OR QUALIFIED PERSONNEL TERMINAL Nees NOTE 1 REFER TO PAGE 20 OF THIS MANUAL FOR THE CORRECT SETTING OF THE ELECTRONIC OVERLOAD UNIT SHOULD PERFORM WIRING AND INSTALLATION OF THIS CONTROLPANEL STOP START FLOAT FLOAT SWITCH SWITCH Figure 7 Control Box Wiring Diagram Float switch connections are for use with
3. Su 10 lw Application Float Switches 11 BOXES co obs hot u p ER vera eh vens 12 Control Box Installation CB200 13 230 460 Voltage Selection 14 Pump Wiring Diagram 15 Transformer Wiring Diagram 200 16 Control Box Wiring Diagram 200 17 Three Phase Power Installation CB200 18 19 Control Box Pre Setup CB200 20 21 Control Box Installation MP102 104 22 Control Box Wiring Diagram 102 104 23 OPETAN io 24 25 Maintenance 26 Pump Troubleshooting Performance Curve 27 Explanation Of Codes In Remarks Column 28 Suggested Spare Parts 29 Electric Submersible Pump Assembly 30 33 Electric Motor Assembly 34 35 Terms and Condition of Sale Parts 36 ST 3050D PARTS amp OPERATION MANUAL REV 0 11 18 02 PAGE 3 PARTS ORDERING PROCEDURES Dealer account number Dealer name and address Shipping address if different than billing address Return fax number Applicable model number Quantity part number and descriptio
4. FILL WITH 10 WEIGHT NON DETERGENT HYDRAULIC OIL USE SHELL TURBO 32 OR EQUIVALENT CHECK HYDRAULIC OIL EVERY 300 HOURS CHANGE EVERY 6 MONTHS ORAS NEEDED PAGE 26 ST 3050D PARTS amp OPERATION MANUAL REV 1 11 18 02 51 30500 SUBMERSIBLE PUMP TROUBLESHOOTING TABLE X PUMP TROUBLESHOOTING SYMPTOM POSSIBLE PROBLEM SOLUTION Check that proper voltage 230 460 30 is being supplied to the Incorrect voltage amps pump Also check that there is an adequate amount of current amps to run the pump Check power source circuit breaker Check electrical connections If using float switches check wiring inspect power cord Blown power fuse Replace fuse check cause of blown fuse Pump Fails To Start Disconnect power cord and check for clogging and improper impeller clearance Unclog pump Check overload protection device Use multimeter to check motor insulation Insulation resistance must Wet motor windings 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 Replace bearings motor if defective Twisted or restricted discharge Lay hose flat un kinked Remove clog from hose line hose Use a voltmeter to check voltage while pump is energized Voltage must be within 10 Check power source no load and load If an extension cord is used make sur
5. 3 PHASE POWER INSTALLATION OUTPUT TO PUMP 1 Thethree 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 three phase output power cable through the cable gland on the control box Attach the wires to the AC terminal blocks on the electronic overload unit as indicated by Table 6 and Figure 8 TABLE 6 3 PHASE AC OUTPUT POWER CONNECTIONS ELECTRONIC OVERLOAD CABLE WIRE COLOR UNIT TERMINAL BLOCK GREEN GROUND Electrical connections to the power source should only be performed by a licensed electrician or qualified personnel PAGE 18 ST 3050D PARTS amp OPERATION MANUAL REV 1 11 18 02 ST 3050D SUB PUMP CTRL BOX 39 PWR INSTALLATION CB200 CHECK JUMPER SETTINGS ON TRANSFORMER REFER TO PAGE 4 230 VAC CONFIGURATION SHOWN EXTERNAL 3 PHASE 230 OR 460 VOLT POWER SOURCE MOUNT CONTROL BOX IN AN UPRIGHT VERTICAL POSITION AS SHOWN CONTACTOR CIRCUIT BREAKER i eee GROUND HS MTEI NOTE IL TERMINAL BLOCK Im REFER TO PAGE 20 THIS MANUAL B FOR THE CORRECT SETTING OF THE TERMINAL BLOCK ELECTRONIC OVERLOAD UNIT m Das CN 3 PHASE LASE FLC A ST AC INPUT POWER CABLE ELECTRONIC OVERLOA
6. 77 Q 230 VAC Starting Amps 39 460 Power Cable Length 25 FT 7 62 Meters Dimensions 10 2 x 26 8 in Height X Diameter 25 9 X 68 cm Dry Net Weight 120 Ibs 54 Kg 1 Motor Rotation Upon start up the pump kicks in the opposite direction of motor rotation The correct rotation is counter clockwise CCW as viewed from the impeller end of the pump Rotation direction for 3 phase pumps is changed by reversing two of the power leads 2 Mechanical Oil Seal Use a good grade 10 weight non detergent hydraulic oil i e Shell Turbo 32 or equivalent Fill oil cavity 75 to 85 full allow air space for expansion RPM Speed 3 950 30 PAGE 8 51 30500 PARTS amp OPERATION MANUAL REV 1 11 18 02 51 30500 SUBMERSIBLE PUMP GENERAL INFORMATION Introduction The Multiquip Model 51 30500 submersible pump is designed to pump water and is used for the draining de watering of swimming pools well casings construction sites cofferdams manholes transformer vaults and excavations vortex type impeller is attached to the output shaft of a 5 0 HP electric motor which provides adequate power for general purpose pumping This submersible pump is supplied complete with an electric power cable and a discharge port located at the top of the pump which accepts a 3 inch hose This pump is ideal for portability because of its light weight and carrying handle For reliability and long life a mech
7. 3 NEVER grab or touch a live power cord DO NOT stand in water when connecting the pump s power cord into a voltage source The possibility exist of electrical shock electrocution and possibly death If all of the pump s electrical requirements have been met insert the power plug on the pump into the power source receptacle Wait a few seconds and water should begin to flow from the discharge hose If water is not flowing from the discharge hose or notflowing freely after a few minutes remove the power from the pump and check the system for leaks Pump Shut Down Clean up 1 Remove the power from the pump by turning off the circuit breaker switch that provides power to the pump Remem berto sure thathands are dry not wet andfeetare not standingin water when removing disconnecting power from the pump Using the lifting rope liftthe pump upfrom its current position 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 Ifthe pump was used to pump mud grit or silt flush vigorously with clean water Remove the pump from the water Wipe off any mud or debris that might have attached itself to the pump Store pump a clean dry place away from dirt and debris ST 3050D PARTS amp OPERATION MANUAL REV 0 11 18 02 PA
8. 2 Remove the 3 phase AC output power connector housing onthe control box then route the three phase output power cable through the cable gland on the control box Attach the wires to the AC terminal blocks on the electronic overload unit as indicated by Table 6 and Figure 15 PAGE 22 ST 3050D PARTS amp OPERATION MANUAL REV 1 11 18 02 ST 3050D SUB PUMP CTRL BOX WIRING DIAGRAM MCP102 104 CONTROL BOX CONTROL BOX MOUNT CONTROL BOX IN AN UPRIGHT VERTICAL POSITION AS SHOWN CAUTION HIGH WERE 230 VAC 30 AC POWER INPUT TO PUMP EXTERNAL 3 PHASE 230 460 VAC POWER SOURCE CIRCUIT BREAKER L1 MTS L3 GROUND 3 PHASE INPUT POWER CABLE 3 PHASE INPUT 4 INSTALLATION IS BE PREFORMED ONLY BY ALICENSED ELECTRICIAN OR QUALIFIED PERSONNEL 90 MCP102 MCP104 11 3 12 5 L3 TERMINAL a 4 BLOCK STOP START 6 T3 Z 460 30 POWER INPUT TO PUMP ELECTRONIC OVERLOAD UNIT TERMINAL 3 PHASE AC POWER OUTPUT Figure 15 MCP102 104 Control Box Configurations ST 3050D PARTS amp OPERATION MANUAL REV 0 11 18 02 PAGE 23 ST 3050D SUBMERSIBLE PUMP OPERATION Operation 1 Attach a suitable lifting cable rope to the carrying handle Figure 16 onthe pump and lowert
9. PARTS amp OPERATION MANUAL REV 0 11 18 02 PAGE 9 ST 3050D SUBMERSIBLE PUMP COMPONENTS Figure 1 Submersible Pump Components Figures 1 shows the location of the basic components for the 51 30500 Submersible Pump 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 DO NOT pump large objects or debris with this pump This pump is for pumping water only For de watering purposes always place the strainer base on a platform Volute Impeller Impellers are constructed of high chrome ductile iron to minimizes wear and prolong service life Electric Motor This unit utilizes a three phase 230 460 VAC 5 0 HP electric motor Consult with a licenced electrician before connecting motor to a power source Observe all city and local safety codes Discharge Port Connect a 3 inch hose to this port Remember to adequately support the discharge hose to avoid stress on the pump AC Power Cable This unit is supplied with a 50 ft 15 24 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 Carrying Handle Always carry the submersible pump by its handle NEVER carry the pump by its power cord Carrying or lifting the pump by the power cord will cause undue stress on the cord and ultimat
10. 65 0202020065 PLUG 1 91 0203050081 OIL SEAL 1 102 0203050102 DISCHARGE PORT 1 103 0203050103 PACKING 1 104 0203050104 STUD BOLT 2 116 0202020116 BOLT 3 119 0203050119 MOTOR Susan hs 51 3050 119 02030500119 MOTOR naiss pere 51 30500 120 0203050120 CORD W CORD GLAND 1 121 0202020121 CORD CLAMP 1 127 0202020127 CARRYING HANDLE 1 128 0202020128 BOLT 2 146 0203050146 STRAINER 1 147 0203050147 STUD BOLT 4 148 0203050148 SPRING WASHER 4 156 0203050156 HEAD COVER 1 157 0202020157 PACKING 1 160 0203050160 SLEEVE 1 1 4 0203050174 OUTER PIPE 1 188 0203050188 STRAINER SET PIPE 4 191 0202020191 POWER CORD GLAND CASE 1 192 0202020192 BOLT 4 214 1 0203050214 PACKING 1 214 2 0203050214 PACKING 1 ST 3050D PARTS amp OPERATION MANUAL REV 0 11 18 02 PAGE 31 99 577 ELECTRIC SUBMERSIBLE PUMP ASSY T 3050 D 5 gt LLI cc t lt F lt cc o LO o 5 lt 51 30500 ELECTRIC SUBMERSIBLE PUMP ASSY ELECTRIC SUBMERSIBLE PUMP ASSY NO PARTNO PART NAME QTY REMARK 222 0203050222 NUT 4 224 0202020224 PLUG 1 431 0203050431 NUT 2 434 0203050434 STUFFING BOX 1 435 0202020435 PACKING 1 436 0202020436 SPRING WASHER 2 437 0202020437 CORD GLAND CASECOVER 1 438 0202020438 BOLT 3 439 0202020439 1 440
11. FLOAT SWITCH CONNECTIONS FLOAT SWITCH TERMINAL FLOAT SWITCH BLOCK NUMBER START TERMINALS 1 AND 2 STOP TERMINALS 3 AND 4 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 length of the float switch wires then secure float switch wires to pump discharge hose ST 3050D PARTS amp OPERATION MANUAL REV 0 11 18 02 PAGE 13 ST 3050D SUBMERSIBLE PUMP 230 460 VOLTAGE SELECTION 230 460 VAC Voltage Selection The ST 3050D submersible pump is factory set at 230 VAC To change the voltage from 230 VAC to 460 VAC perform the following 1 Remove the four retaining screws that secure the power cord gland assembly to the pump casing and pull the 230 VAC female plug Figure 4 from the pump s cavity 2 Un plug the 230 VAC female plug from the male motor windings plug and insert the 460 VAC female plug into male motor windings plug POWER CORD GLAND ASSEMBLY REAR VIEW Re install the power cord gland assembly back into the pump s cavity Make sure that the gland is seated correctly This will prevent any connector pins from bending or breaking 4 Insertthe four retaining screws and tighten securely POWER CORD GLAND ASSEMBLY GREEN FRONT VIEW GROUND BLUE BROWN BLACK 460 VAC FE
12. MANUAL position MANUAL AUTO Figure 11 Manual Off On SW Man Position PAGE 20 ST 3050D PARTS amp OPERATION MANUAL REV 1 11 18 02 51 30500 SUBMERSIBLE PUMP CTRL BOX PRE SETUP CB 200 Shut Down Verify that the ON indicator Figure 12 on the control box is LIT This means that power is being supplied to the control box Figure 12 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 15 not immersed in water To operate the pump automatically float switches place the 3 position operation switch in the AUTO position Figure 13 OFF MANUAL AUTO Figure 13 Manual Off On SW Auto Position In the AUTO mode the pump will run as long as there is a sufficient amount of water This amount is determined by the setting of the float switches The stop float switch contacts will open when the water level is low and power will be removed from the 5 motor Once the water level has risen back to the appropriate level the start float switch contacts will close and power will be restored to the 5 motor 1 2 3 Place the 3 position operation switch on the control box to the OFF position Figure 14 OFF MANUAL AUTO Figure 14 Manual Off On SW OFF Position Verify that the control box power ON light is OFF Turn the circuit brea
13. collect or prepaid with the charges added to the invoice All shipments are F O B point of origin Multiquip s responsibility ceases when a signed manifest has been obtained from the carrier and any claim for shortage or damage mustbe settled between the consignee andthe carrier MINIMUM ORDER The minimum charge for orders from Mul tiquipis 15 00 net Customers will be asked for instructions regarding handling of orders notmeetingthis requirement RETURNED GOODS POLICY Return shipments will be accepted and credit will be allowed subjectto the following provi sions 1 A Returned Material Authorization must be approved by Multiquip prior to ship ment 2 Toobtain a Return Material Authorization alist must be provided to Multiquip Parts Sales that defines item numbers quanti ties and descriptions of the items to be returned a The parts numbers and descriptions must match the current parts price list The list must be typed or computer generated c Thelist must state the reason s for the return d The list must reference the sales order s orinvoice s under which the items were originally purchased e The list must include the name and phone number ofthe person request ingthe RMA 3 Acopy ofthe Return Material Authoriza tionmustaccompany the return shipment 4 Freight is at the senders expense parts mustbe returned freight prepaid to Multiquip s designated receiving point 5 P
14. route the three phase input power cable through the cable gland on the control box Attach the wires to the terminal block on the electronic overload unit inside the control box as indicated by Table 5 and Figure 15 3 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 It is recommended that the power being supplied to the control box ALWAYS be connected to a circuit breaker or a quick disconnectswitch This safety feature allows for quick removal of power from the control box in the event of an emergency 4 Connect the other end of the 3 phase 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 ELECTRONIC OVERLOAD SETTING 230 VAC 30 1 Using a small flat blade screwdriver set the amperage dial pointer on the electronic overload unit to 14 2 amps ELECTRONIC OVERLOAD SETTING 460 VAC 30 1 Using a small flat blade screwdriver set the amperage dial pointer on the electronic overload unit to 7 1 amps 3 PHASE POWER INSTALLATION OUTPUT TO PUMP 1 The three phase output power cord should have four wires Each wire Is color coded The colors are RED WHITE BLACK and GREEN
15. 0202020440 CONNECTOR 1 441 0202020441 PACKING 1 442 0202020442 BOLT 3 443 0202020443 WASHER 3 444 0202020444 BOLT 2 613 02030500613 CONNECTOR CASE 1 ST 3050D 614 02030500614 BOLT 4 ST 3050D 615 02030500615 PACKING 1 ST 3050D 616 02030500616 PLUG 1 51 30500 617 02030500617 GLAND RUBBER 1 5 30500 618 02030500618 GLAND METAL 1 51 30500 619 02030500619 BOLT 3 51 30500 620 1 02030500620 CONNECTOR 1 5 30500 620 2 02030500620 CONNECTOR 1 5 30500 ST 3050D PARTS amp OPERATION MANUAL REV 0 11 18 02 PAGE 33 ST 3050D ELECTRIC MOTOR ASSY ELECTRIC MOTOR ASSY amp 8 2 89 2 086 amp PAGE 34 ST 3050D PARTS amp OPERATION MANUAL REV 1 11 18 02 ST 3050D ELECTRIC MOTOR ASSY ELECTRIC MOTOR ASSY NO PARTNO PART NAME QTY REMARK 131 0203050131 BOLT 4 132 02020208132 WASHER LOCK 4 268 0203050268 MOTOR A BRACKET 1 269 0203050269 MOTOR B BRACKET 1 2 0 0203050270 MOTOR ROTOR 1 2 3 02030500273 MOTOR STATOR 1 322 02020208322 4 540 0203050540 PACKING 1 541 0203050541 B PACKING 1 606 0203050606 A BEARING MOTOR 1 607 0203050607 B BEARING MOTOR 1 608 02020208608 WASHER WAVE 1 ST 3050D PARTS amp OPERATION MANUAL REV 0 11 18 02 PAGE 35 Effective October 1 2002 TERMS AND CONDITIONS OF SALE PARTS PAYMENT TERMS Terms of payment for parts are net 10 days FREIGHT POLICY All parts orders will be shipped
16. D UNIT TERMINAL BLOCK 3 PHASE 3 PHASE AC POWER AC POWER AC OUTPUT INPUT FLOAT OUTPUT POWER CABLE SWITCH INPUTS START FLOAT SWITCH CONNECT TO TERMINALS 1 AND 2 lt SECURE FLOAT 0 WIRES TO PUMP DISCHARGE HOSE S PUMPING RANGE INSTALLATION IS TO BE PREFORMED Soen S ONLY BY A LICENSED ELECTRICIAN SWITCH CONNECT OR QUALIFIED PERSONNEL TO TERMINALS 3 AND 4 Figure 8 Three Phase Control Box Pump System Diagram ST 3050D PARTS amp OPERATION MANUAL REV 0 11 18 02 PAGE 19 ST 3050D SUBMERSIBLE PUMP CTRL BOX PRE SETUP 200 ELECTRONIC OVERLOAD UNIT SETTINGS Electronic Overload Unit Always make sure that the electronic unitsupplied with the control boxis set to the correct amperage This overload unit must MATCH the amperage requirements of the pump motor Using electronic overload unit with incorrect settings may resultin serious damage to the pump Refer to the Pump Amperage Requirements Table Table 7 for the correct overload amperage settings There are two dials on the Electronic Overload Unit Figure 9 that require adjustment to meet the amperage requirement of the pump motor in use These dials are located on top of the overload unit and are labeled CLASS and FLC A Use a phillips head screw driver to adjust the dials to the correct settings FLC A Dial Setting 1 Set the FLC A dial pointer Figure 9 to the co
17. EVER let an extension cord or plug connection lay in water NEVER stand in water while AC power cord is connected to a power source ll NEVER use a pump with a defective frayed power cord Check the power cord on the pump for cuts in the insulation NEVER use a extension cord that is frayed or damaged where the insulation has been cut ll ALWAYS make certain that proper extension cord has been selected for the job See Table 3 NEVER attemptto use the power cord as a lifting or lowering device for the submersible pump When raising or lowering of the submersible pump is required always attach an adequate rope or lifting device to the correct lifting point handle on the pump ALWAYS place the pump an up right 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 E DO NOT allow the pump to freeze in water NEVER leave an open pump chamber unattended he electrical voltage required to operate the pump can cause severe injury or even death through physical contact with live circuits ALWAYS disconnect the electrical power from the pump before performing maintenance on the pump PAGE 6 ST 3050D PARTS amp OPERATION MANUAL REV 1 11 18 02 51 30500 SUBMERSIBLE PUMP RULES FOR SAFE OPERATION ll ALWAYS make sure that electrical circuits are properly grounded per the National Electric
18. GE 25 51 30500 SUBMERSIBLE PUMP MAINTENANCE LUBRICATION To check the oil level of the mechanical seal perform the following k Lay the pump Figure 19 its side with the oil plug facing upwards Remove oil fill plug Visually inspect oil plug hole to verify that oil cavity is full enough to cover seal spring Check every 300 hours change hydraulic oil every 6 months 1 000 hours or as needed While checking the hydraulic oil level also check the condition of the hydraulic oil in the seal cavity Blockthe opening with a finger and roll pump to one side to drain oil into a small transparent container If oil is cloudy or has water in it drain oil pump cavity and replace hydrau lic oil Check the seal for wear damage OIL FILL SUBMERSIBLE PUMP LAY PUMP FLAT ON ITS SIDE 5 If oil level is low fill with SAE 10 weight non detergent hydraulic oil i e Shell Turbo 32 or equivalent Fill oil cavity 75 to 85 full allow air space for expansion Pump oil cavity capacity is approximately 180 cc IMPELLER 1 Make sure the clearance between the impeller and the friction disk is approximately 012 020 inches 304 508 mm Ifimpelleris defective or badly worn replace impeller imme diately REMOVE FILL PLUG AND VISUALLY INSPECT THAT OIL CAVITY IS FULL ENOUGH TO COVER SEAL SPRING FILL TO 75 80 CAPACITY APPROXIMATELY 180 CC Figure 19 Checking Hydraulic Oil
19. MALE PLUG Pur BLAC REAR VIEW BROWN HD FEMALE ALIGNMENT p ru PLUG MARK E BLACK CH j BLACK BROWN ES 7 Le 77 230 FEMALE m PLUG UT BLACK ALIGNMENT BLUE U2 m ines a 1 WIRES WINDING WIRES ALIGNMENT MARK E V2 Y1 BROWN WIRES CONNECT TO 230 460 VAC POWER SOURCE Figure 4 230 460 VAC Pump Voltage Selection PAGE 14 ST 3050D PARTS amp OPERATION MANUAL REV 1 11 18 02 ST 3050D SUBMERSIBLE PUMP PUMP WIRING DIAGRAM AC POWER CORD Lead Wires AC POWER CORD w w w lt lt w RED y WHITE GROUND GREEN QUU Power Source S POWER SOURCE R S T Power Source V1 1 yi U2 V2 We W1 Figure 5 Pump Wiring Diagram ST 3050D PARTS amp OPERATION MANUAL REV 0 11 18 02 PAGE 15 ST 3050D SUB PUMP CTRL BOX TRANSFORMER WIRING CB200 TRANSFORMER 230 460 VOLTAGE SETTINGS CAUTION Transformer 230 460 Voltage Settings Pump motors are factory set at 230 VAC The transformer Figure 6 of this control box must be set to the voltage requirements of the pump in use Refer to the attached wiring diagram located inside the Control or reference Figures 7 8 8 Use the two supplied jumper tabsto the transformer to the required output voltage
20. ST 3050D SUBMERSIBLE PUMP 1 TO 3 UNITS 1 to 3 Units Qty PIN sive Description loose 0203050120 AC CORD W CORD GLAND ss 0203050060 MECHANICAL SEAL m 0203050081 OIL SEAL Toss 0203050047 LINER ls 0203050003 IMPELLER 0202020004 IMPELLER NUT 0203050214 PACKING less 0202020157 PACKING lise 0202020435 PACKING Liens 0202020435 SPRING WASHER ST 3050D PARTS amp OPERATION MANUAL REV 0 11 18 02 PAGE 29 8 0 DL gt gt m gt gt 1 30500 5 ELECTRIC SUBMERSIBLE PUMP ASSY gt LLI cc lt lt F lt cc O o LO o c co 5 lt ST 3050D ELECTRIC SUBMERSIBLE PUMP ASSY ELECTRIC SUBMERSIBLE PUMP ASSY NO PARTNO PART NAME QTY REMARK 1 0203050001 CASING 1 2 0203050002 FRICTION DISC 1 3 0203050003 IMPELLER 1 4 0202020004 IMPELLER NUT 1 9 0202020005 SPRING WASHER 1 6 0203050006 IMPELLER KEY 1 0202020031 STUD BOLT 4 32 0202020032 NUT 4 33 0202020033 WASHER 4 47 0203050047 LINER 1 53 0202020053 WASHER 1 60 0203050060 MECHANICAL SEAL 1
21. al Code NEC and local codes before operating pump Severe injury or death by electrocution can result from operating an ungrounded pump NEVER use this pump to remove water from a swimming pool when people are in the water ALWAYS be sure the operator is familiar with proper safety precautions and operations techniques before using submersible pump 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 lll 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 greater than 104 degrees Fahrenheit Also DO NOT pump liquids containing acid or alkali ALWAYS check the dual voltage connection inside the pump for proper voltage setting ALWAYS check strainer before pumping Make sure strainer is not clogged Remove any large objects dirt or debris from the strainer to prevent clogging ll ALWAYS use a large basket strainer when pumping water that contain large debris 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 ALWAYS store equipment properly when it is not being used Equipment should be stored in a clean dry location ou
22. anical seal provides shaft sealing with an oil chamber separating the pump section from the motor The pump when in use should be installed as free standing upright position on its strainer base A 3 inch discharge hose not supplied should be connected to the discharge port located on top of the pump The discharge hose should be adequately supported to avoid stress on the pump For maximum water flow the discharge hose should be kept as short as possible and with minimum elevation above the pump Remember as the length and or height of the discharge hose is increased the flow of water will be reduced Also any reduction in the hose size and any fittings such as valves or outlet nozzles will restrict the water flow To avoid back siphonage when the pump is switched off ensure that the end of the discharge hose is installed above the water level atthe final discharge point When the pump is switched off the water remaining in the hose will run back through the pump This can be avoided by placing a non return valve in the hose nearest the pump NEVER use this submersible pump to pump flammable liquids or operate in a explosive or flammable environment Avoid using this pump in conditions where mud grit silt or other debris are present These conditions could cause blockage and cause excessive pump wear DO NOT install the pump directly into an area where there is a heavy build up of mud grit silt or debris If this condi
23. anty there are no warranties express impliedor statutory which extend beyondthe description ofthe products on the face hereof 36 ST 3050D PARTS amp OPERATION MANUAL REV 1 11 18 02 ST 3050D PARTS amp OPERATION MANUAL REV 0 11 18 02 PAGE 37 PARTS AND OPERATION MANUAL HERE S HOW TO GET HELP PLEASE HAVE THE MODEL AND SERIAL NUMBER ON HAND WHEN CALLING PARTS DEPARTMENT 800 427 1244 or 310 537 3700 FAX 800 672 7877 or 310 637 3284 SERVICE DEPARTMENT 800 478 1244 or 310 537 3700 FAX 310 537 4259 WARRANTY DEPARTMENT 800 421 1244 EXT 279 or 310 537 3700 FAX 310 537 1173 MAIN 800 421 1244 or 310 537 3700 FAX 310 537 3927 MULTIQUIP INC PARTS DEPARTMENT 18910 WILMINGTON AVENUE 800 427 1244 a CARSON CALIFORNIA 90746 800 672 7877 310 537 3700 SERVICE DEPARTMENT 800 421 1244 NATIONWIDE 800 478 1244 MULTIQUIP x 310 537 3927 FAX 310 537 4259
24. artsmustbeinnew and resalable con dition inthe original Multiquip package if any and with Multiquip part numbers clearly marked 6 Thefollowingitems are not returnable a Obsolete parts If an item is in the price book and shows as being re placedby another item itis obsolete b Any parts with a limited shelf life such as gaskets seals O rings andotherrubber parts that were pur chased morethan six months priorto the return date c Anylineitemwith an extended dealer net price of less than 5 00 d Specialorderitems e Electrical components f Paint chemicals and lubricants 0 Decalsandpaper products Items purchased in kits 7 Thesenderwillbe notified of any material received thatis not acceptable 8 Suchmaterial willbe held for five working days from notification pending instruc tions Ifa reply is not received within five days the material will be returned to the sender at his expense 9 Crediton returned parts will be issued at dealer net price at time of the original purchase less 15 restocking charge 10 Incases where an item is accepted for which the original purchase document can not be determined the price will be based on thelist price that was effective twelve months priortothe RMA date 11 Credit issued will be applied to future purchases only PRICING AND REBATES Prices are subject to change without prior notice Price changes are effective on a spe cif
25. der the influence or drugs or alcohol NEVER use accessories or attachments which are recommended by Multiquip for this equipment Damage to the equipment and or injury to user may result Manufacture does not assume responsibility for any accident due to equipment modifications Whenever necessary replace nameplate operation and safety decals when they become difficult read ALWAYS check the machine for loosened threads or bolts before starting NEVER operate the submersible pump in an explosive atmosphere or near combustible materials An explosion or fire could result causing severe bodily harm or even death E ALWAYS make sure submersible pump is grounded NEVER use gas piping as an electrical ground DO NOT place hands or fingers inside pump when pump is running E ALWAYS make certain that the voltage supplied to the pump is correct Always read the pump s nameplate to determine what the power requirements 230 or 460 VAC 3 phase E DO NOT restrict the flow of the discharge hose as it may cause overheating lil careful of discharge whipping under pressure Make sure pump installation is accordance with national and local electrical codes ALWAYS have a qualified electrician perform the pump wiring installation ALWAYS mount the control box in a vertical position protected from the elements NEVER handle pump s AC power cord with wet hands N
26. dirt moisture or any elements that may contaminate or erode the electronic components of the control box 3 Phase Power Installation Input The ST 3050D submersible pump requires 230 460 3 phase power for normal operation The 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 transformer wiring section on page 16 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 CAUTION Applying incorrect power voltage phasing to the submersible pump can cause severe damage to the pump Please make sure that the correct voltage and phase are transferred to the pump at all times POWER CORD REQUIREMENTS When routing the three phase power via a power cord to the control box ALWAYSuse the correct wire size Please reference Table 3 below Cord Length Wire Size to determine the correct wire size Incorrectwire size can adversely affectthe performance ofthe pump TABLE 3 CORD LENGTH AND WIRE SIZE 150 FT 14 AWG 12 AWG FLOAT SWITCH INSTALLATION CB200 1 Remove the float switch input connector housing then route the float switch wires through the cable gland on the control box Attach the wires to the float switch terminal block as indicated by Table 2 Reference Figures 7 and 8 TABLE 4
27. e it has adequate current carrying capacity for the required length Impeller worn Replace impeller Defective water seal Replace water seal Water in Seal Oil Loose Oil Fill Plug Tighten securely Pump Fails to Deliver Full Output Low voltage Performance Curve 5 90 9 TOTAL HEAD 5 86 ft CAPACITY Fiqure 20 Max 264 G P M 60 Performance Chart o IN ef tty EIN ms 2 300 0 1 00 Capacity US G P M ST 3050D PARTS amp OPERATION MANUAL REV 0 11 18 02 PAGE 27 EXPLANATION CODE INREMARKS COLUMN How to read the marks and remarks used in this parts book NOTE Items Found In the Remarks Column Serial Numbers Where indicated this indicates a serial The contents of this number range inclusive where a particular part is used a parts catalog are subject to change Model Number Where indicated this shows that the 1 without notice corresponding part is utilized only with this specific model number or model number variant Items Found In the Items Number Column All parts with same symbol in the number column 96 or m belong to the same assembly or kit If more than one of the same reference number is listed the last one listed indicates newest or latest part available PAGE 28 ST 3050D PARTS amp OPERATION MANUAL REV 1 11 18 02 ST 3050D SUGGESTED SPARE PARTS
28. ely the cord will become dislodged from the pump Thermal Overload Protection This pump will require the use of an external control box with a thermal overload protection device that will shut down the motor in the event of high operating temperatures The motor will automatically restart once the temperature returns to an acceptable operating temperature Mechanical Oil Seal 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 Oil Seal Plug Remove this plug to check and add hydraulic oil Shell 32 or equivalent to the oil cavity This oil protects the mechanical seal Oil cavity should be full enough to cover seal spring PAGE 10 ST 3050D PARTS amp OPERATION MANUAL REV 1 11 18 02 ST 3050D SUBMERSIBLE PUMP APPLICATION FLOAT SWITCHES Float Switch Theory There is tilt sensitive mercury switch hermetically sealed within each float As the liquid level water rises or falls the float changes its angle until the mercury switch makes close or breaks open the circuit The length of cord between the float and point of attachment determines the amount of water to pumped Contact Multiquip sales department to order float switches EXTERNAL 3 PHASE 230 OR 460 VOLT POWER SOURCE CIRCUIT BREAKER 3 INCH DISCHARGE HOSE Float Switch Dual Float switches Figure 2 a
29. er source circuit 7 breaker ON OFF switch in the OFF position when the pump is not in use Sight and Hearing hazard ALWAYS wear approved eye and hearing protection if required Respiratory Hazard A Equipment Damage Messages ALWAYS wear approved respiratory protection if required Other important messages are provided throughout this manual to help prevent damage to your submersible pump other property or the surrounding environment This submersible pump other property or the surrounding environment could be damaged if you do not follow instructions ST 3050D PARTS amp OPERATION MANUAL REV 0 11 18 02 PAGE 5 51 30500 SUBMERSIBLE PUMP RULES FOR SAFE OPERATION CAUTION Failure to follow instructions in this manual may lead to serious injury or even death This equipment is to be operated by trained and qualified personnel only This equipment is for industrial use only The following safety guidelines should always be used when operating the ST 3050D Submersible Pump GENERAL SAFETY This equipment should not be operated by persons under 18 years of age NEVER operate this equipment without proper protective clothing shatterproof glasses steel toed boots and other protective devices required by the job NEVER operate this equipment when not feeling well due to fatigue illness or taking medicine NEVER operate this equipment un
30. from reference Table 2 forthe model that meets your pumping requirements Contact Multiquip sales department to order control boxes as listed in Table 2 POWER m INPUT TO PUMP ALWAYS have a qualified FLOAT licensed electrician perform the INPUT installation of the control box Figure 3 Electrical Control Box CB 200 Table 2 Control Box Speifications Thermal Model No VoltageType rite Overload Protection Capability 290460 VAC ves YES YES Three Phase 230 VAC 460 VAC PAGE 12 ST 3050D PARTS amp OPERATION MANUAL REV 1 11 18 02 51 30500 SUBMERSIBLE PUMP CTRL BOX INSTALLATION CB200 DANGER To place the 51 30500 submersible pump into operation requires the use of a control box The control box contains the necessary electronics electronic overload module float switch connections and 230 460 voltage transformer to operate the pump Rememberthis control box contains hazardous voltages Disconnect all 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 death CAUTION This control box should only be installed or serviced by a licensed electrician or qualified personnel CONTROL BOX MOUNTING Mountthe control box in an upright vertical position Make sure the control box is securely fastened to a flat surface that is free of dust
31. he pump into place For applications where there is an excessive amount of mud grit or silt the use of a support platform is desirable When pumping waterfrom swimming applications where there is little or no debris the support platform is not required POWER CORD LIFTING ROPE 3 INCH DISCHARGE HOSE 2 4 CARRYING 44 HANDLE D 4449 gt 5 5 4 4 b 4440 1 bb 4 4 4424 SUPPORT bob 44 44 sew PLATFORMI 4444 bb da 44 44 n i 4 4 D Neu 44 44 1 UH s b 5 b b CES b ba b D Figure 16 Submersible Pump Upright Position Correct 2 Makesurethe pumpis always placedin an upright position nottilted Figure 17 Never position the pump directly on a soft loose bottom Rememberto attain maximum pumping capacity and prevent excessive wear position the pump so it will not burrow itself into sand or clay Figure 17 Submersible Pump Upright Position Incorrect 3 After the pump has been positioned correctly into place power can be applied to the pump s electric motor PAGE 24 ST 3050D PARTS amp OPERATION MANUAL REV 1 11 18 02 51 30500 SUBMERSIBLE PUMP OPERATION 4 NEVER grabortouchalive power cord Figure 18 with wet hands the possibility exists of electrical shock electrocu tion and even death WET HANDS POWER CORD POWER ON Figure 18 Power Cord Wet Hands DANGER
32. ic date andall orders received on or after that date will be billed atthe revised price Rebates for price declines and added charges for price increases will notbe made for stock on hand atthe time of any price change Multiquip reserves the rightto quote and sell directto Government agencies andto Original Equipment Manufacturer accounts who use our products as integral parts of their own products SPECIAL EXPEDITING SERVICE A 35 00surcharge willbe addedtothe invoice forspecial handling including bus shipments insured parcel postorin cases where Multiquip must personally deliverthe parts to the carrier LIMITATIONS OF SELLER S LIABILITY Multiquip shall not be liable hereunder for damages in excess ofthe purchase price ofthe item with respect to which damages are claimed and in no event shall Multiquip be liable for loss of profit or good will or for any other special consequential or incidental dam ages LIMITATION OFWARRANTIES No warranties express or implied are made in connection with the sale of parts or trade accessories nor asto any engine not manufac tured by Multiquip Such warranties made in connection withthe sale of new complete units are made exclusively by a statement of war ranty packaged with such units and Multiquip neitherassumes nor authorizes any personto assume for it any other obligation or liability whatever in connection with the sale of its products Apartfrom such written statement of warr
33. ker or quick disconnect switch to the OFF position ST 3050D PARTS amp OPERATION MANUAL REV 0 11 18 02 PAGE 21 ST 3050D SUB PUMP CTRL BOX INSTALLATION MCP102 104 DANGER Remember this control box contains hazardous voltages Disconnect all 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 death Remember the MCP102 Control Box is to be used only for 230 VAC 3 phase applications and the MCP 104 Control Box 15 for 460 VAC 3 phase applications Neither control box has float switch capability POWER CORD REQUIREMENTS When routing the three phase power via a power cord to the control box ALWAYS use the correct wire size Please reference Table 3 Cord Length Wire Size to determine the correct wire size Incorrect wire size can adversely affectthe performance of the pump CONTROL BOX MOUNTING Mountthe 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 CORD INPUTTO BOX INSTALLATION 1 The three phase input power cord should have four wires Each wire is color coded The colors are RED WHITE BLACK and GREEN 2 Remove the 3 phase AC input connector housing from the control box then
34. n of each part Specify preferred method of shipment e UPS Ground e UPS Second Day or Third UPS Next Day Federal Express Priority One please provide us with your Federal Express account number Airborne Express Truck or parcel post Normally shipped the same day the order is received if prior to 2PM west coast time Earn Extra Discounts when you order by FAX All parts orders which include complete part numbers and are received by fax qualify for the following extra discounts Number of line items ordered Additional Discount 1 9 items 390 10 items 590 Get special freight allowances when you order 10 or more line items via FAX UPS Ground Service at no charge for freight Now Direct TOLL FREE access UPS Third Day Service at one half of actual freight to our Parts Department cost No other allowances on freight shipped by any other carrier Toll free nationwide Common nuts bolts and washers all items under 1 00 list price 800 421 1244 do not count towards the 10 line items Toll free FAX DISCOUNTS ARE SUBJECT TO CHANGE 800 6 PA RTS 7 800 672 7877 Fax order discount and UPS special programs revised June 1 1995 PAGE 4 ST 3050D PARTS amp OPERATION MANUAL REV 1 11 18 02 ST 3050D SUBMERSIBLE PUMP SAFETY MESSAGE ALERT SYMBOLS FOR YOUR SAFETY AND THE SAFETY OF OTHERS Safety precautions should be followed at all times when
35. operating this equipment Failure to read and understand the Safety Messages and Operating Instructions could result in injury to yourself and others This Owner s Manual has been developed to provide complete instructions for the safe and efficient operation of the Multiquip Model ST 3050D Submersible Pump Before using this pump ensure that the operating individual has read and understands all instructions in this manual SAFETY MESSAGE ALERT SYMBOLS The three 3 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 three words DANGER WARNING or CAUTION DANGER vou wiLL be KILLED or SERIOUSLY injured if you do not follow directions WARNING vou CAN be KILLED or SERIOUSLY injured if you do not follow directions CAUTION vou be injured if you do not follow directions Potential hazards associated with the ST 3050D submersible pump operation will be referenced with Hazard Symbols which appear throughout this manual and will be referenced in conjunction with Safety Message Alert Symbols H Rotating Parts AZARD SYMBOLS NEVER operate equipment with covers or guards removed Keep fingers hands hair and clothing away from all moving parts to prevent injury Accidental Starting OFF ALWAYS place the pow
36. re used for the unattended operation of the submersible pump The ST 3050D pump requires the use of a control box to perform this function Shown in Figure 2 is an example of a dual float control switch application The Model ST 3050D submersible pump requires one each of the Model SW 1WOP float type mercury switches These switches have a pumping range level between 5 5 18 feet 1 67 5 5 meters All float switch connections are bare wire no plug The ST 3050D submersible pump must use the CB 200 Control Box when float switches are required for the job application The MCP102 104 control boxes do not have float switch capability CONTROL BOX LIFTING ROPE CB200 OFF FLOAT POWER POWER SWITCH TO INPUT INPUTS PUMP a 0 PUMP FLOAT SWITCHES SUPPORT PLATFORM SUBMERSIBLE PUMP 0099 Figure 2 Dual Float Control Switch ST 3050D PARTS amp OPERATION MANUAL REV 0 11 18 02 PAGE 11 ST 3050D SUBMERSIBLE PUMP CONTROL BOXES Control B ontrol Boxes CONTROL Control boxes Figure 3 are available for remote control and BOX thermal shut down capability for the submersible pump These water resistant control boxes provide electronic overload protection watertight housing and glands to prevent water from CAUTION leaking into the box and a float switch interface 44 23 There are various control box models to choose
37. rrect amperage for the pump motor in use Use Table 7 to determine the correct amperage setting CLASS AUTO Figure 9 Electronic Overload Module TABLE 7 PUMP MOTOR AMPERAGE REQUIREMENTS Control Volts Box VAC CB200 230 14 2 CB200 460 7 1 Overload Unit ST3050D 16 6 40 16 5730500 iu 16 6 40 16 Class Dial Setting 1 Setthe CLASS dial pointer Figure 9 to the HAND position 10 This controls the reset function only It does not affect the ability of the pump to run with or without float switches RESET Operation This electronic control unit has two modes of reset The modes are defined as follows MODE 1 When the CLASS dial onthe electronic overload module is inthe HAND position manual the reset button Figure 10 onthe front of the control box must be pushed to reset the unit restore power in the event of an overload Figure 10 Control Box Reset Button MODE 1 When the CLASS dial on the electronic overload module is inthe AUTO position automatic mode the unit will automatically be reset in the eventofanoverload NOTE All control boxes should have the CLASS dial set to the HAND position 10 Operation 1 From the voltage source set the circuit breaker or quick disconnect switch to the ON position 2 For manual operation of the pump place the 3 position operation switch Figure 11 on the control box in the
38. t of the reach of children ALWAYS read understand and follow procedures in Operators Manual before attempting to operate equipment Maintenance Safety M NEVER lubricate components or attempt service on a running machine ALWAYS allow the machine a proper amount of time to cool before servicing Keep the machinery in proper running condition Fixdamage to the machine immediately and always replace broken parts Emergencies ll ALWAYS know the location of the nearest fire extinguisher Bl ALWAYS know the location of the nearest and first aid kit FIRST AID M In emergencies always know the location of the nearest phone or keep a phone on the job site Also know the phone numbers of the nearest ambulance doctor and fire department This information will be invaluable in the case of an emergency Lem POSSE ST 3050D PARTS amp OPERATION MANUAL REV 0 11 18 02 7 ST 3050D SUBMERSIBLE PUMP SPECIFICATIONS Table 1 Specifications Pump Type Submersible Trash Pump Suction amp Discharge Size 3 00 in 76 mm 270 gallons minute Maximum Pumping Capacity Max Solids Diameter 2 00 in 51 mm 7 1 Q 460 VAC Impeller Clearance 012 025 in i 304 635 mm Max Lift 25 ft 62 meters Voltage Phase 230 460 30 1 2 Yes Y 5 HP 3 75
39. the CB200 Control Box only ST 3050D PARTS amp OPERATION MANUAL REV 0 11 18 02 PAGE 17 51 30500 SUB PUMP CTRL BOX 30 PWR INSTALLATION CB200 3 PHASE POWER CORD INPUTTO BOX INSTALLATION 1 The three phase input power cord should have four wires Each wire is color coded The colors are RED WHITE BLACK and GREEN 2 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 5 and Figure 8 TABLE 5 3 PHASE AC INPUT POWER CONNECTIONS CABLE WIRE COLOR AC TERMINAL BLOCK GREEN GROUND 3 Tighten the connector housing to ensure a tight fit between the power cord and the connector This will prevent the cable from pulling out of the terminal block and also prevent moisture from entering the control box 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 4 Connect the other end of the 3 phase 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
40. tion is present install the pump on a platform before operating This pump must always be positioned on a platform in an upright position NEVER operate the pump by a suspended rope To prevent large solids from entering the pump install a wire mesh screen or similar barrier around the pump If the pump was used to pump water containing mud silt use clean water to flush out the pump after each use DO NOT allow the pump to run dry as this will damage the pump During maintenance dry running is permissible but only for a few seconds NEVER lift the pump by its electrical power cord ALWAYS lift the pump by its carrying handle or attached a rope to carrying handle A pump fully submerged pump in liquid will not freeze unless the liquid freezes DO NOT allow a partially submerged pump to freeze The expansion of water freezing in the volute may crack the pump causing expensive repairs If there is any danger of the pump being subjected to freezing temperatures the pump from water and allow it to drain thoroughly If the pump jams or the pump rotor locks for any reason disconnect the pump from the power source immediately Allowing the pump motor to cycle ON and OFF under an overload condition can burn out the motor When replacement of nuts and bolts is required use only recommended parts as referenced in the parts section of this manual This pump uses metric threads DO NOT use english measurement threads ST 3050D
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