Belkin ST4125D User's Manual
Contents
1. 27 Submersible Pump Component Drawings ST 4125D Submersible Pump Assembly 28 29 ST 6125D Submersible Pump Assembly 30 33 Terms and Condition of Sale 34 Specification and part numbers are subject to change without notice PAGE 2 ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 PARTS ORDERING PROCEDURES Ordering parts has never been easier Choose from three easy options Effective January 15 2006 Order via Internet Dealers Only 1 If you have Account to obtain a Order parts on line using Multiquip s SmartEquip website Username and Password E mail us at View Parts Diagrams parts multiquip com Order Parts To obtain an MQ Account contact your Wi Print Specification Information District Sales Manager for more information r I Goto www multiquip com and click on Use the internet and qualify for a 5 Discount Parts log in and save on Standard orders for all orders which include complete part numbers L COTTA Note Discounts Are Subject To Change 1 1 EN NEP Order via Fax Dealers Only Fax your order in and qualify for a 2 Discount All customers welcome to order parts via Fax on Standard orders for all orders which include Domestic US Customers dial complete part numbers ji 12. current position Remove the discharge hose from the dis charge 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 gritorsilt 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 in a clean dry place away from dirt and debris ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 PAGE 21 ST 4125D ST 6125D MAINTENANCE LUBRICATION To check the oil level of the mechanical seal perform the following 1 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 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 waterinit drain oil from pump cavity and replace hydrau lic oil Check the seal for wear damage LAY PUMP FLAT ON ITS SIDE 5 If oil level is low fill with SAE 10 weight non deterg
3. 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 ST 4125D ST 6125D SETUP Control Box Setup 1 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 9 on the control box in the MANUAL position Reset 1 When the overload module detects an overload the unit will shut down Checkthe unitand remove cause of overload Let the unit cool down and press the RESET button see Figure 12 on the front of the control box to reset the unit restore power OFF MANUAL AUTO Figure 12 RESET Button Shut Down 1 Place the 3 position operation switch on the control box to the OFF position Figure 13 Figure 9 Manual Off Auto SW Manual Position 3 Verify thatthe ON indicator Figure 10 on the control box is LIT This means that power is being supplied to the control box MANUAL AUTO Figure 10 Control Box Power ON Indicator 4 In the manual mode the pump will run continuously Pay close attention when running the pump in this mode Figure 13 Manual Off Auto SW OFF Position DAMAGE tothe pump may occur if pump is notimmersed 2 Verify that the control box power ON light is OFF in water oe Mun s 3 the circuit breaker or quick disconnect switch to the 5 To operate the pump automatically float switches place the OFF position 3 position
4. AX CAUTION Installation This control box should only be installed or serviced by a licensed electrician or qualified personnel CONTROL BOX MOUNTING Mountthe control box 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 4125D ST6125D submersible pump requires 230 460V 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 230 460 VAC Selectionsection 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 AX CAUTION Voltage Phasing 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 ALWAYS use the correct wire size Please reference Table 3 below Cord Length and Wire Size to determine the correct wire size Incorrect wire size can adversely affect the performance of the pump TAB
5. SLEEVE O RINGS ST6125D ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 41 06 12 08 PAGE 27 ST 4125D SUBMERSIBLE PUMP ASSY ST 4125D SUBMERSIBLE PUMP ASSY MECHANICAL SEAL SLEEVE O RINGS KIT 7 PAGE 28 ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 ST 4125D SUBMERSIBLE PUMP ASSY ST 4125D SUBMERSIBLE PUMP ASSY NO ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 PAGE 29 PART NO 1025754 1042600 5741250031 1040546 1042601 5741250061 1042602 1042604 57412500201 57412500204 1042605 1042607 1042608 57412500221 1042609 5741250025 1040547 5741250032 57412500321 57412500324 1040548 1042612 57412500391 1042613 57412500491 1042614 57412500501 57412500504 1042615 1042616 1042617 TBD 1042618 5741250055 1042619 1042620 1042621 57412500601 57412500604 1042623 57412500611 1042624 57412500641 1042625 1042627 1033125 1040549 57412500157 1027620 CABLE POWER 22 MM 50 CABLE GLAND DIA 38 BOLT M12X25L CABLE BUSH DIA 34 CABLE ENTRY ASSY BOLT MOULDING TUBE VOLUTE HOUSING BOLT M12X40L O RING DIA 35X190 LOWER PACKING IMPELLER SUCTION COVER BOLT M12XM20L STRAINER MECHANICAL SEAL OIL SEAL HOSE CONNECTION DISCHARGE 2 BOLT M10X25L O RING DIA 3 1X105 OIL PLUG M12 SEAL STOPPER BOLT M5X10
6. VAC MOTOR INPUT 3 WINDINGS INPUT3 WINDINGS U RED 1AND 7 U RED 4 AND 7 V WHITE 2AND8 V WHITE 5AND8 W BLACK 3AND9 W BLACK 6AND9 PUMP IS SHIPPED FROM THE FACTORY FOR 230 VAC OPERATION FOR 460 VAC OPERATION SEE ABOVE WIRING ILLUSTRAT ON AND TABLE Figure 5 230 460 VAC Pump Voltage Selection ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 PAGE 15 ST 4125D ST 6125D CONTROL BOX WIRING DIAGRAM THREE PHASE WIRING 12 14 CONNECTIONS POWER INPUT EXTERNAL 3 PHASE 230 OR 460 VOLT POWER SOURCE CIRCUIT BREAKER RED AWG 8 RED AWG 8 50VA CPT HEATER SELECTION CONTROL SEE TABLE 2 TRANSFORMER FOR CORRECT OVERLOAD RELAY ON INDICATOR LAMP WHT TERMINAL BLOCK SELECTABLE 230 OR 460 VAC STOP START VOLTAGE INPUTS FLOAT FLOAT SWITCH SWITCH L1 L2 L1 L2 neur Mns ro H1 H3 H2 H4 H1 H3 H2 H4 CB 12 CB 14 Figure 7 Control Box Wiring Diagram JUMPER 230V INPUT 021 x 6 PAGE 16 ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 ST 4125D ST 6125D 3 PHASE POWER INSTALLATION 3 PHASE POWER CORD INPUT TO BOX INSTALLATION 1 Thethree phase input power cord should have four wires Each wire is color coded The colors ar
7. are properly grounded per the National Electrical Code NEC and PAGE 6 ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 ST 4125D ST 6125D RULES FOR SAFE OPERATION local codes before operating pump Severe injury or death by electrocution can result from operating an ungrounded pump 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 E DO NOT pump water greater than 104 degrees Fahrenheit Also DO NOT pump liquids containing acid or alkali 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 contain large debris H ALWAYS flush pump after use when pumping water concentrated with heavy debris Flush with clean fresh water It is very important to always flush the pump before turning it off to prevent clogging E ALWAYS store equipment properly when it is not being used Equipment
8. not to fully stretch the cable connections inside the pump Cut the tie wrap holding the 460 VAC motor winding wires as shown Figure 5 Then remove the protective covering from the wires labeled 4 5 and 6 CUT TIE WRAP I LARGE NSR REMOVE PROTECTIVE COVERING TO GAIN ACCESS TO 460 VAC WIRES 4 5 AND 6 REMOVE SLEEVING Remove the sleeving covering the large red wire and separate the 2 wires labeled 1 and 7 Connect the wire labeled 4 from step 4 to the wire labeled 7 from step 5 and join them with the large red wire Cover the wires with sleeving Repeat steps 5 and for the large black wire and the large white wire Referto the table in Figure 5 for wires to separate column 2 and wires to connect column 4 Using electrical tape bind the 3 wires that were separated and disconnected labeled 1 2 and 3 Place these wires neatly inside the housing Reinstall the top of the pump and reinsert the six screws and tighten securely BLACK WHITE SMALL SMALL CONNECT TO GROUND SCREW IN UPPER CASING 460 VAC MOTOR WINDINGS 230 460 VAC 230 VAC MOTOR WINDINGS 230 VAC LOW VOLTAGE MOTOR WINDING 8 STAR WITH NEUTRAL MOTOR WINDINGS COMMON 460 VAC HIGH VOLTAGE U x 7 8 MOTOR Y WINDING STAR WITH NEUTRAL 9 MOTOR WINDING CONFIGURATION 230 VAC MOTOR 460
9. printing Illustrations descriptions references and technical data contained in this manual are for guidance only and may not be considered as binding Multiquip Inc 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 VSL MULTIQUIP
10. should be stored in a clean dry location out of the reach of children lI ALWAYS read understand and follow procedures in Operators Manual before attempting to operate equipment Maintenance Safety 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 Fix damage to the machine immediately and always replace broken parts Emergencies ALWAYS know the location of the nearest fire extinguisher ALWAYS know the location of the nearest and first aid kit FIRST AID KIT 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 Li AMBULANCE FIRE DEPARTMENT ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 PAGE 7 ST 4125D ST 6125D DIMENSIONS ST 4125D ST 6125D Figure 1 Submersible Pump Dimensions PAGE 8 ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 ST 4125D ST 6125D SPECIFICATIONS TABLE 1 SPECIFICATIONS Type Centrifugal Submersible Pump Impeller Cast Ductile Iron Suction amp Discharge Size 2 00 in 51 mm Maximum Pumping
11. 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 Models ST 4125D ST6125D Submersible Pumps Before using these pumps 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 AA DANGER You WILL be KILLED or SERIOUSLY injured if you DO NOT follow directions AX WARNING You CAN be KILLED or SERIOUSLY injured if you DO NOT follow directions AX CAUTION You CAN be INJURED if you DO NOT follow directions Potential hazards associated with the submersible pump s operation will be referenced with Hazard Symbols which appear throughout this manual and will be referenced in conjunction with Safety Message Alert Symbols HAZARD SYMBOLS Rotating Parts 14 NEVER operate equipment with covers or guards removed Keep fingers hands hair and clothing away from all moving parts to prevent injury A Accidental Starting OFF ALWAYS place t
12. 1 14 57612500221 BOLT M12XM20L 4 15 1042645 STRAINER 1 16 ST6125D025 MECHANICAL SEAL 1 17 1042646 OIL SEAL 2 18 1042647 FLANGE HOSE CONNECTION DISCHARGE 1 19 51612500321 BOLT M10X25L 4 208 ST6125D0324 O RING DIA 3 1X105 1 21 1042648 OIL PLUG M12 1 22 1042649 SEAL STOPPER OPTIONAL 1 23 57612500391 BOLT M5X10L 3 24 1042611 HOSE CONNECTION DISCHARGE 1 25 1042650 BOTTOM PLATE 1 26 ST6125D0491 BOLT BOTTOM PLATE M12X120L 3 27 1042651 MOTOR COVER 1 28 ST6125D0501 BOLT M12X35L M10X35L 6 298 ST6125D0504 O RING DIA 35X232 1 30 1042652 UPPER PACKING 1 ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 PAGE 31 ST 6125D SUBMERSIBLE PUMP ASSY ST 6125D SUBMERSIBLE PUMP ASSY MECHANICAL SEAL SLEEVE O RINGS KIT cr PAGE 32 ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 ST 6125D SUBMERSIBLE PUMP ASSY CONTINUED ST 6125D SUBMERSIBLE PUMP ASSY CONTINUED NO 31 32 33 34 35 36 37 38 39 408 41 42 PART NO 1042653 1042617 TBD 1042655 1042654 1042663 1042664 1042665 ST6125D0601 ST6125D0604 1042666 ST6125D0611 1042667 ST6125D0641 1042668 1042670 1033125 1042671 ST6125D0157 1027622 PART NAME BALL BEARING UPPER 463062203 THERMAL SENSOR GASKET DISCHARGE CONNECTION NUT IMPELLER M20X2 5P ROTOR UNIT STATOR BALL BEARING LOWER 6308 7308 BEARING HOUS
13. 77 800 421 1244 Ext 279 Fax 310 537 1173 310 537 3700 Fax 310 637 3284 310 537 3700 Ext 279 Service Department Technical Assistance 800 421 1244 Fax 310 537 4259 800 478 1244 Fax 310 631 5032 310 537 3700 MEXICO UNITED KINGDOM MQ Cipsa Multiquip UK Limited Head Office Carr Fed Mexico Puebla KM 126 5 Tel 52 222 225 9900 Hanover Mill Fitzroy Street Tel 0161 339 2223 Momoxpan Cholula Puebla 72760 Mexico Fax 52 222 285 0420 Ashton under Lyne Fax 0161 339 3226 Contact pmastretta cipsa com mx Lancashire OL7 OTL Contact sales amp multiquip co uk CANADA BRAZIL Multiquip Multiquip 4110 Industriel Boul Tel 450 625 2244 Av Evandro Lins e Silva 840 grupo 505 Tel 011 55 21 3433 9055 Laval Quebec Canada H7L 6V3 Fax 450 625 8664 Barra de Tijuca Rio de Janeiro Fax 011 55 21 3433 9055 Contact jmartin amp multiquip com Contact cnavarro multiquip com br srentes multiquip com br COPYRIGHT 2008 MULTIQUIP INC Multiquip Inc and the 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
14. 800 6 PARTS 7 800 672 7877 Note Discounts Are Subject To Change Order via Phone Domestic US Dealers Call 1 800 427 1244 tiqu RE I pH RE I Non Dealer Customers Contact your local Multiquip Dealer for International Customers should contact parts or call 800 427 1244 for help in their local Multiquip Representatives for locating a dealer near you Parts Ordering information p e E 4 4 When ordering parts please supply Dealer Account Number Specify Preferred Method of Shipment Dealer Name and Address V UPS Fed Ex DHL Shipping Address if different than billing address Me v Truck Return Fax Number Next Day Applicable Model Number Second Third Day Quantity Part Number and Description of Each Part All orders are treated as Standard Orders and will shipthe same day if received prior to 3PM PST WWW MULI WE ACCEPT ALL MAJOR CREDIT CARDS 6 MULUSUIFE ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 PAGE 3 NOTES PAGE 4 ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 ST 4125D ST 6125D SAFETY MESSAGE ALERT SYMBOLS FOR YOUR SAFETY AND THE SAFETY OF OTHERS Safety precautions should be followed at all times when operating
15. Capacity gen 1 756 liters minute 2 309 liters minute 125 ft 38 meters 125 ft 38 meters 10 HP 7 5 kw 15 HP 11 kw Voltage Phase 230 460 30 230 460 30 149 230V 215 230V 75 460V 108 460V 27 230V 39 230V 14 460V 19 7 460V Starting Amps Running Amps Control Box Required See Note 3 See Note 3 Power Cable Length 50 ft 15 2 Dry Net Weight 390 Ib 177 kg Height 38 8 in 98 6 cm Diameter 14 2 in 36 cm 1 Motor Rotation Upon start up the pump kicks in the opposite direction of motor rotation The correct rotation is counterclockwise CCW as viewed from the impeller end of the pump 2 Mechanical Seal Oil 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 3 Control Box Control box Table 2 is required for use to provide thermal overload protection to the pump ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 PAGE 9 ST 4125D ST 6125D GENERAL INFORMATION The Multiquip Model ST 4125D and ST 6125D submersible mechanical seal of these pumps operates within an oil pumps are designed to pump water These pumps work best filled chamber that provides positive lubrication This helps when faced with high head applications where you need an prevent damage in the event the pump is run dry for short periods appreciable flo
16. D 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 bolts 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 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 ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 PAGE 11 ST 4125D ST 6125D FLOAT SWITCHES Float Switch Theory There is a 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 o
17. ING LOWER BOLT M8X20L O RING DIA 3 1 135 BEARING COVER BOLT M6X16L STATOR HOUSING BOLT M10X100L KEY IMPELLER 7X7X30 EYE BOLT LIFTING W3 4 SEAL LEAKAGE SENSOR STOP RING S 40 WAVE WASHER DIA 55X70 5X0 4 KIT MECHANICAL SEAL SLEEVE O RINGS lt REMARKS INCLUDES ITEMS W ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 PAGE 33 TERMS AND CONDITIONS OF SALE PARTS PAYMENT TERMS Terms of payment for parts are net 30 days FREIGHT POLICY All parts orders will be shipped collect or prepaid with the charges addedtothe invoice All shipments are F O B point of origin Multiquip s responsibility ceases when a signed manifest has been obtained from the carrier andanyclaimforshortage ordamage mustbe settled betweenthe consignee andthe carrier MINIMUM ORDER The minimum charge for orders from Multiquip is 15 00 net Customers will be asked for instructions regarding handling of orders not meetingthis 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 ToobtainaReturn Material Authorization alistmustbe providedto Multiquip Parts Sales that defines item numbers quanti ties and descriptions of the items to be returned a Thepartsnumbers
18. L BOTTOM PLATE BOLT M12X120L MOTOR COVER BOLT M12X35L M10X35L O RING DIA 35X232 PACKING UPPER BALL BEARING UPPER 6306ZZC3 THERMAL PROTECTOR GASKET FLANGE HOSE CONNECTION NUT IMPELLER M20X2 5P ROTOR UNIT STATOR BALL BEARING LOWER 6308 7308 BEARING HOUSING LOWER BOLT M8X20L O RING DIA 3 1 135 BEARING COVER BOLT M6X16L STATOR HOUSING BOLT M10X100L KEY 7X7X30 EYE BOLT LIFTING W3 4 SEAL LEAKAGE SENSOR STOP RING WAVE WASHER DIA 55X70 5X0 4 QTY REMARKS 1 1 2 1 1 7 1 1 1 4 1 1 1 4 1 1 2 1 4 1 1 1 3 1 3 1 6 1 1 1 3 1 1 1 1 2 1 6 1 1 4 1 2 1 2 1 1 1 KIT MECHANICAL SEAL SLEEVE O RINGS 1 INCLUDES ITEMS W ST 6125D SUBMERSIBLE PUMP ASSY ST 6125D SUBMERSIBLE PUMP ASSY MECHANICAL SEAL SLEEVE O RINGS KIT PAGE 30 ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 ST 6125D SUBMERSIBLE PUMP ASSY ST 6125D SUBMERSIBLE PUMP ASSY NO PART NO PART NAME QTY REMARKS 1 1035149 CABLE POWER 24 MM 50 1 2 1042637 CABLE GLAND DIA 38 1 3 5761250031 BOLT M12X25L 2 4 1042638 CABLE BUSH DIA 34 1 5 1042639 CABLE ENTRY ASSY 1 6 ST6125D061 BOLT 7 7 1042640 MOULDING TUBE 1 8 1042641 VOLUTE HOUSING 1 9 ST6125D02011 BOLT M12X40L 1 10 ST6125D0204 O RING DIA 35X190 4 11 1042642 LOWER PACKING 1 12 1042643 IMPELLER 1 13 1042644 SUCTION COVER
19. LE 3 CORD LENGTH AND WIRE SIZE Dmm emen asar FLOAT SWITCH INSTALLATION 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 4 Refer to Figures 7 and 8 TABLE 4 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 ofthe float switch wires then secure float switch wires to pump discharge hose PAGE 14 ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 ST 4125D ST 6125D 230 460 VAC VOLTAGE SELECTION 230 460 VAC Voltage Selection The ST 4125D ST 6125D submersible pump is factory set at 230 VAC To change the voltage from 230 VAC to 460 VAC perform the following refer to Figure 5 1 Place pump ina suitable area free of dirt and debris 2 Remove the four retaining screws using 19 mm socket and the two Allen screws using an 8 mm socket that secure the pump casing Lift the top of the pump by attaching a chain on the eye bolts and using a crane or similar equipment Be careful
20. OPERATION AND PARTS MANUAL IVIL MULTIQUIP Submersible Pumps Model ST4125D Model ST6125D Revision 1 06 12 08 To find the latest revision of this publication visit our website at www multiquip com THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES ST 4125D ST 6125D TABLE OF CONTENTS Multiquip ST 4125D ST 6125D Submersible Pumps Table Of COMES L u sua s terra pesetas 2 Parts Ordering Procedures 3 Safety Message Alert Symbols 5 Rules For Safe Operation 6 7 DIMENSIONS 8 Specifications Pump 9 General Information 10 Submersible Pump Components 11 Float SWICNES D iden 12 Control BOXES a 13 Control Box Installation 4 0 2 14 230 460 VAC Voltage Selection 15 Control Box Wiring 16 Three Phase Power Installation 17 18 Set Up RCCT m 19 20 21 Maintenance aa uu 22 Troubleshooting 1 23 Performance Curves 24 Explanation Of Codes In Remarks Column 26 Suggested Spare
21. T ONLY 3 12348 AR MAKE LOCALLY 4 12349 BEARING d ess S N 2345B AND ABOVE NO Column Unique Symbols All items with same unique symbol 96 Or gt in the number column belong to the same assembly or kit which is indicated by a note in the Remarks column Duplicate Item Numbers Duplicate numbers indicate multiple part numbers are in effect for the same general item such as different size saw blade guards in use or a partthat has been updated on newer versions of the same machine When ordering a part that has more than one item number listed check the remarks column for help in determining the proper part to order PART NO Column Numbers Used Part numbers can be indicated by a number a blank entry or TBD TBD To Be Determined is generally used to show a part that has not been assigned a formal part number at time of publication A blank entry generally indicates that the item is not sold separately or is not sold by Multiquip Other entries will be clarified in the Remarks Column QTY Column Numbers Used Item quantity can be indicated by a number a blank entry or A R A R As Required is generally used for hoses or other parts that are sold in bulk and cut to length A blank entry generally indicates that the item is not sold separately Other entries will be clarified in the Remarks Column REMARKS Column Some of the most common notes found in
22. and descriptions must match the current parts price list b The list must be typed or computer generated The list must state the reason s for the return d The list must reference the sales order s orinvoice s under whichthe items were originally purchased e The list must include the name and phonenumber of the person request ing the RMA 3 Acopyofthe Return Material Authoriza tionmustaccompanythe return shipment 4 Freight is at the sender s expense All parts must be returned freight prepaid to Multiquip s designated receiving point 5 Partsmustbeinnewandresalable con dition inthe original Multiquip package if any and with Multiquip part numbers clearly marked 6 Thefollowingitems are not returnable 8 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 andother rubber parts thatwere pur chased more than six months priorto thereturn date c Anylineitemwith anextended dealer netprice ofless than 5 00 d Special order items Electrical components f Paint chemicals and lubricants g Decalsandpaper products h Items purchasedin kits 7 Thesenderwillbe notified of any material receivedthatis not acceptable 8 Suchmaterial willbe heldforfive working days from notification pending instruc tions Ifa reply is not received within five
23. b 20000 NEVER operate this equipment when not feeling well due to fatigue illness or taking medicine E NEVER operate this equipment under the influence or drugs or alcohol SG NEVER use accessories or attachments which are not recommended by Multiquip for this equipment Damage to the equipment and or injury to user may result Manufacturer does not assume responsibility for any accident due to equipment modifications E Whenever necessary replace nameplate operation and safety decals when they become difficult read ALWAYS check the machine for loosened threads or bolts before starting E NEVER operate the submersible pump 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 E DO NOT place hands or fingers inside pump when pump is running 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 The ST 4125D and ST 6125D submersible pumps require 230 or 460 VAC three phase for normal operation E DO NOT restrict the flow of the discharge hose as it may cause overheating E Be careful of discharge whipping under pressure E Make sure pump installation is in accordance with national and local electrical codes ALWAYS ha
24. capability for the submersible CAUTION pump HIGH These water resistant control boxes provide electronic overload VOLTAGE protection watertight housing and glands to prevent water from leaking into the box and a float switch interface Refer to Table 2 for the control box model that meets your e pumping requirements b Contact Multiquip sales department to order control boxes as listed in Table 2 O ALWAYS have a qualified 6 69 licensed electrician perform the installation of the control box CB12 14 1 x U N Figure 4 Electrical Control Box Model CB12 14 Table 2 Control Box Specifications Thermal ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 PAGE 13 ST 4125D ST 6125D CONTROL BOX INSTALLATION L DANGER Hazardous Voltage To place the ST 4125D ST6125D submersible pumps into operation requires the use of a control box The control box contains the necessary electronics thermal overload module float switch connections and 230 460 voltage transformer to operate the pump 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
25. ce Curve 140 120 gt 100 80 B 3 60 TOTAL HEAD f 1 Max 125 ft 8 N C ax 464 G P M 40 ax 20 0 100 200 300 400 500 600 Capacity US G P M ST6125D Performance Curve 140 1201 100 N 80 N 3 60 TOTAL HEAD x Max 125 ft e C Max 610 G P M 40 ax 20 0 100 200 300 400 500 600 Capacity US G P M Figure 18 Pump Performance Curves PAGE 24 ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 NOTES ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 PAGE 25 EXPLANATION OF CODE IN REMARKS COLUMN The following section explains the different symbols and remarks used in the Parts section of this manual Use the help numbers found on the back page of the manual if there are any questions The contents and part numbers listed in the parts section are subject to change without notice Multiquip does not guarantee the availibility of the parts listed Sample Parts List NO PART NO PART NAME QTY REMARKS 1 12345 1 INCLUDES ITEMS W 2 WASHER 1 4 IN NOT SOLD SEPARATELY 2 12347 WASHER 3 8 IN 1 MQ 45
26. days the material will be returnedtothe sender at his expense 9 Crediton returned parts will be issued at dealer net price at time of the original purchase less a 15 restocking charge 10 In cases where an item is accepted for which the original purchase document can not be determined the price will be based onthe list price that was effective twelve months prior to the 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 cific date and all orders received on or after that date willbe billed atthe revised price Rebates for price declines and added charges for price increases will not be made for stock on hand at the time of any price change Multiquip reserves the right to quote and sell directto Governmentagencies andto Original Equipment Manufacturer accounts who use our products as integral parts of their own products SPECIAL EXPEDITING SERVICE A 35 00 surcharge willbe addedtothe invoice for special handling including bus shipments insured parcel post or in cases where Multiquip mustpersonally 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 oth
27. e 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 body This will prevent the cable from pulling out of the terminal block and also prevent moisture from entering the control box Itis 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 3 PHASE POWER INSTALLATION OUTPUTTO 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 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
28. ent hydraulic oil i e Shell Turbo 32 or equivalent Fill oil cavity 7596 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 m REMOVE FILL PLUG AND VISUALLY INSPECT THAT OIL CAVITY IS FULL ENOUGH TO COVER SEAL SPRING m FILL TO 75 80 CAPACITY APPROXIMATELY 180 CC E FILL WITH 10 WEIGHT NON DETERGENT HYDRAULIC OIL USE SHELL TURBO 32 OR EQUIVALENT m CHECK HYDRAULIC OIL EVERY 300 HOURS CHANGE EVERY 6 MONTHS OR AS NEEDED Figure 17 Checking Hydraulic Oil PAGE 22 ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 ST 4125D ST 6125D TROUBLESHOOTING Practically all breakdowns can be prevented by proper handling and maintenance inspections but in the event of a breakdown use Table 6 Pump Troubleshooting as a basic guideline for troubleshooting the pump If the problem cannot be remedied contact Multiquip s service department TABLE 6 PUMP TROUBLESHOOTING SYMPTOM POSSIBLE PROBLEM SOLUTION Pump Fails To Start Incorrect voltage amps Check that proper voltage 230 460 3 is being supplied to the pump Also check that there is an adequate amount of current amps to
29. er special consequential or incidental dam ages LIMITATION OF WARRANTIES No warranties express orimplied are made in connection with the sale of parts or trade accessories nor asto any engine manufac tured by Multiquip Such warranties made in connection withthe sale of new completeunits are made exclusively by a statement of war ranty packaged with such units and Multiquip neitherassumes norauthorizes any personto assume for it any other obligation or liability whatever in connection with the sale of its products Apartfrom such written statement of warranty there are no warranties express implied or statutory which extend beyondthe description ofthe products onthe face hereof Effective February 22 2006 PAGE 34 ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 NOTES ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 PAGE 35 OPERATION AND 5 MANUAL HERE S HOW TO GET HELP PLEASE HAVETHE MODEL AND SERIAL NUMBER ON HAND WHEN CALLING UNITED STATES Multiquip Corporate Office MQ Parts Department 18910 Wilmington Ave Tel 800 421 1244 800 427 1244 Fax 800 672 7877 Carson CA 90746 Fax 800 537 3927 310 537 3700 Fax 310 637 3284 Contact mq 8 multiquip com Mayco Parts Warranty Department 800 306 2926 Fax 800 672 78
30. f attachment determines the amount of water to be pumped Contact Multiquip sales department to order float switches EXTERNAL 3 PHASE 230 OR 460 VOLT POWER SOURCE CIRCUIT BREAKER Li RED WHITE T gt BLACK 26 6 777 3 5 GREEN GROUND 4 or 6 INCH DISCHARGE HOSE eM m J Float Switch Dual Float switches Figure 3 are used for the unattended operation of the submersible pump The ST 4125D and ST 6125D pumps require the use of a control box to perform this function Shown in Figure 3 is an example of a dual float control switch application The Models ST 4125D and ST 6125D submersible pumps require one each of the Model SW 1WOPA 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 4125D ST 6125D uses the CB12 control box for 230V and the CB14 control box for 460 V when float switches are required for the job application CONTROL BOX PUMP ON SUPPORT PLATFORM PAGE 12 ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 ST 4125D ST 6125D CONTROL BOXES Control Boxes Ta p ER Control boxes Figure 4 are required for remote control and thermal shutdown
31. he power source circuit breaker or ON OFF switch in the OFF position when the pump is not in use A Sight and Hearing hazard ALWAYS wear approved eye and hearing protection if required A 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 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 PAGE 5 ST 4125D ST 6125D RULES FOR SAFE OPERATION WARNING Read This Manual 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 4125D ST 6125D Submersible Pump GENERAL SAFETY lll DO NOT operate or service this equipment before reading this entire manual Mi This equipment should not be operated by p gt persons under 18 years of age M NEVER operate this equipment without proper protective clothing shatterproof glasses steel toed boots and other protective devices required by the jo
32. operation switch in the AUTO position Figure 1 1 OFF MANUAL AUTO Figure 11 Manual Off Auto SW Auto Position 6 Inthe 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 pump s 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 pump s motor ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 PAGE 19 ST 4125D ST 6125D OPERATION Operation 1 Attach a suitable lifting chain to the eye bolts Figure 14 on 2 Make sure the pumpis always placed in an upright position the pump and using a crane or similar equipment lower the nottilted Figure 15 Never position the pump directly on a pump into place For applications where there is an exces soft loose bottom Rememberto attain maximum pumping sive amount of mud gritor silt the use of a support platform capacity and prevent excessive wear position the pump so is desirable it will not burrow itself into sand or clay CONNECT TO CONTROL BOX 525 4 64 DISCHARGE I Figure 14 Placing the Submersible Pump Figure 15 Incorrect Tilted Position Correct Upright Position 3 Afte
33. r the pump has been positioned correctly into place A CAUTION Pump Use power can be applied to the pump s electric motor DO NOT use this pump for swimming pool applications PAGE 20 ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 ST 4125D ST 6125D OPERATION 4 NEVER grab ortouch alive power cord Figure 16 with wet hands the possibility exists of electrical shock electrocu tion and even death WET POWER CORD POWER ON Figure 16 Power Cord Wet Hands AA DANGER Electrocution Hazard 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 wateris notflowing from the discharge hose or notflowing freely after afew minutes removethe powerfrom the pump and check the system for leaks Pump Shut Down Clean up Remove the power from the pump by turning off the circuit breakerorswitch that provides powertothe pump Remem bertomake sure that hands are dry not wet andfeetare not standing in water when removing disconnecting power from the pump Using the chain and lifting crane lift the pump up from its
34. 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 Impeller locked Disconnect power cord and check for clogging and improper impeller clearance Unclog pump Check overload protection device Wet motor windings 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 bearings Check for excessive bearing wear if worn replace bearings Replace motor if defective Pump Fails to Deliver Full Output Twisted or restricted discharge hose Lay hose flat un kinked Remove clog from hose line Clogged pump strainer Low voltage Clean strainer 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 sure it has adequate current carrying capacity for the required length Impeller worn Replace impeller Water in Seal Oil Defective water seal Loose Fill Plug Replace water seal Tighten securely ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 PAGE 23 ST 4125D ST 6125D PERFORMANCE CURVES ST4125D Performan
35. the Remarks Column are listed below Other additional notes needed to describe the item can also be shown Assembly Kit All items on the parts list with the same unique symbol will be included when this item is purchased Indicated by INCLUDES ITEMS W unique symbol Serial Number Break Used to list an effective serial number range where a particular part is used Indicated by S N XXXXX AND BELOW S N XXXX AND ABOVE S N XXXX TO S N Specific Model Number Use Indicates that the part is used only with the specific model number or model number variant listed It can also be used to show a part is NOT used on a specific model or model number variant Indicated by ONLY NOT USED ON Make Obtain Locally Indicates that the part can be purchased at any hardware shop or made out of available items Examples include battery cables shims and certain washers and nuts Not Sold Separately Indicates that an item cannot be purchased as a separate item and is either part of an assembly kit that can be purchased or is not available for sale through Multiquip PAGE 26 ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 ST 4125D ST 6125D SUGGESTED SPARE PARTS ST 4125D ST 6125D SUBMERSIBLE PUMP 1 TO 3 UNITS Qty P N Description Remarks 1 1027620 KIT MECHANICAL SEAL SLEEVE O RINGS ST4125D 1 1027622 KIT MECHANICAL SEAL
36. the control box Attach the wires to the AC terminal blocks on the overload relay as indicated by Figure 8 Electrical connections to the power source should only be performed by a licensed electrician or qualified personnel ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 PAGE 17 ST 4125D ST 6125D 3 PHASE POWER INSTALLATION MOUNT CONTROL BOX IN AN UP LEFT VERTICAL POSITION AS SHOWN IG 4 NG 81 TRANSFORMER Tile AC POWER TERMINAL BLOCK A ey P GEN MANUAL AUTO SOS Bi 54 1 I QODepee 245 EXTERNAL 3 PHASE gt 1217 h 1992 1 230 OR 460 VOLT 516 124 4 1 i POWER SOURCE WW 2 HEATER CIRCUIT SEE TABLE 2 BREAKER AT gt RED H o O WHITE 2 12 STO BLACK k GE z lt n O 3PHASE AC OUTPUT L POWER CABLE INPUTS 3 PHASE AC INPUT POWER CABLE 1 SECURE FLOAT SWITCH WIRES TO PUMP DISCHARGE HOSE SWITCH CONNECT S STOP FLOAT TO TERMINALS 1 AND 2 SWITCH CONNECT TO TERMINALS 3 AND 4 e PUMPING WARNING INSTALLATION OF THIS CONTROL BOX IS TO BE PERFORMED ONLY BY ALICENSED ELECTRICIAN OR QUALIFIED PERSONNEL Figure 8 Three Phase Control Box Pump System Diagram PAGE 18 ST 4125D ST
37. ve a qualified electrician perform the pump wiring installation M ALWAYS mount the control box in a vertical position protected from the elements E NEVER handle pump s AC power cord with wet hands E NEVER let an extension cord or plug connection lay in water E NEVER stand in water while AC power cord is connected to a power source E 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 ALWAYS make certain that proper extension cord has been selected for the job E NEVER attempt to use the power cord as a lifting or lowering device for the submersible pump II 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 in an upright position on a platform before using The platform will prevent the pump from burrowing itself on soft sand or mud E NEVER operate pump its side E DO NOT allow the pump to freeze in water E NEVER leave an open pump chamber unattended The 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 E ALWAYS make sure that electrical circuits
38. w of time The ST 4125D and ST 6125D submersible pumps have dual voltage 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 ST 4125D comes with NPT threads for standard hose connections while the ST 6125D is equipped with 6 inch flange fittings PAGE 10 ST 4125D ST 6125D SUBMERSIBLE PUMPS OPERATION AND PARTS MANUAL REV 1 06 12 08 ST 4125D ST 6125D SUBMERSIBLE PUMP COMPONENTS ST 4125D ST 6125D SUBMERSIBLE PUMP ST 6125D Figure 2 Submersible Pump Components Figure 2 shows the location of the basic components for the ST 4125D and ST 6125D 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 ST 4125D pump utilizes a 60 Hz three phase 230 460 VAC 10 HP electric motor and the ST 6125D 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 ST 4125D or 6 inch hose ST 6125
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