Table of Contents Introduction 2. Warranty information Complying with standards 4. Contents in the packing box 5. Information about your pump 6. Schematic drawings Key product specifications & features 8. Cross-section view Pre-installation requirements 10. Installation procedures 11. Basic troubleshooting 12.
1. Introduction Thank you for choosing a quality product manufactured by Texmo Industries. We request you to read this manual carefully to ensure that the system you have purchased will be operated correctly. This manual is intended to provide you with information on your product and information on installation and operation.
5. Information about your pump Taro Borewell Submersible pumpsets are manufactured using high quality raw materials and components using state-of-the-art manufacturing facilities. Taro Borewell Submersible pumpsets will give trouble free performance if they are properly installed and maintained. Prior to installation, go through this manual thoroughly and follow the instructions for installation and maintenance of our submersible pumpset so as to ensure reliable operation.
6. Schematic drawing View of a 3 inch Submersible Pump Set is shown below in Fig. 1: Fig. 1 View of 3 inch Submersible Pump Set Motor Pump Strainer OMBW001A 2020.01...
3 Core PVC Insulated flat cable Product Performance Specification Texmo Industries has a wide variety of 3 inch Borewell Submersibles to meet your requirements. Please consult our sales team / your nearest dealer to meet your specific requirements. Key features: Motor...
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Oil seal and sand guard is provided to prevent sand entry High grade carbon thrust bearing enables reliable operation Winding over hang protector provided to ensure the coil life LTB 4 journal bearing bushes for longer life of motors Motors fitted with copper rotor Easily re-windable Squirrel-cage motor Equipped with rubber diaphragm to compensate thermal expansion of water High quality seal rings and sand guard to protect motor from sand entry...
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Key features: Strainer A Stainless Steel strainer, wrapped around the Inlet Bracket, prevents the ingress of pebbles into the intake during pumping Key features: Wiring Harness All submersible motors are provided with 3 core PVC insulated flat cable of length 3 metres OMBW001A 2020.01...
8. Cross-section view Cross-section view of 3 Inch Submersible Motor assembled with Double D coupling mounted on the shaft is shown below in Fig. 2: Fig. 2 Cross-section view of 3 inch submersible motor PART No. PART NAME Coupling Hex. Nut Sand Guard Hex Socket Head Cap Screw Bush...
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Cross-section view of 3 Inch Submersible radial flow pump, TRT Series, is shown below in Fig. 3: Fig. 3 Cross-section view of 3 inch submersible radial flow pump – TRT series PART No. PART NAME Cable Guard Cable Clamp With Screw Hexagon Bolt Nrv Cup Washer Hexagon Nut...
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Cross-section view of 3 Inch Submersible Box type radial flow pump, TBRT Series, is shown below in Fig. 4: Fig. 4 Cross-section view of 3 inch submersible box type radial flow pump – TBRT series PART No. PART NAME Cable Guard Cable Clamp With Screw Tie Bar CSK Screw...
9. Pre-installation requirements Arrangement for Installation Use the services of a professional and trained mechanic with experience in erecting borewell submersibles Ensure proper safety during installation Ensure the availability of electrical power as indicated in Table 1 General Installation Precautions Open the packaging and note down the serial number and model for future reference Inspect the purchased pump for damage / leakage Ensure all fasteners are tightened properly...
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Use trained professionals to install the submersible pump. Improper fitment can cause the pump to fall into the bottom of the bore Caution Use a power supply cable that has sufficient rating and has been exclusively provided for the pump. Factor in low-voltage operation Warning Provide proper earthing as improper earthing can cause electrical shock Warning...
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Operation Precautions Do not run the pump dry. It could lead to product damage Caution Switch OFF the power supply and ensure that the impeller completely stops before making adjustments Warning Do not use this pump for pumping liquid exceeding 33 C as this may lead to product failure Caution...
10. Installation procedure Please follow the below procedure to install the pump and motor. The supply voltage should be within -15% to +6% of rated voltage. Water temperature for operation of the pump should not exceed 33 Failure to observe the precautions given above could cause the pump to Caution malfunction, which may lead to current leakage or electrical shock.
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The two threaded plugs are then re-assembled, ensuring the motor is encapsulated Dry the exterior of the motor and check thoroughly for water leakage If there is no leakage, the motor is now ready for coupling with the pump and then installation Checking Insulation Resistance Before submerging the unit, measure the insulation resistance using a megger of 1000 VDC Ensure contact points are clean...
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Procedure for joining and Insulating Procedure for joining and insulating the 3 core conductors: the cable joint for under-water cable: Step 1: Soldering / knot the copper strands Step 6: Layer 1 - 1st layer of virgin rubber insulation Step 2: Layer 1 - 1st layer of virgin rubber insulation Step 7: Layer 2 - 1st layer of PVC Insulation tape Step 3: Layer 2 - 1st layer of PVC Insulation tape Step 8: Layer 3 - 2nd layer of PVC Insulation tape...
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Checking direction of rotation of Motor Hazardous voltage will cause death, serious injury, electrocution. All electrical work must be performed by an authorized electrician in compliance with local electrical equipment standards & internal wiring codes. Danger After water-proofing the joint connecting the submersible motor cable and supply cable, check if the direction of rotation of the motor shaft matches the direction marked on the visible face of the top housing The direction of rotation is counter-clockwise looking from the motor shaft end, as marked on...
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Keep the submersible motor vertical Couplings are supplied mounted on the motor shaft Apply threading compound to the internal thread on the delivery casing and the external threaded portion of the short length delivery pipe to be fitted to the delivery casing Screw the short length of delivery pipe to the delivery casing Refer Fig.
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Fig. 7 Assembling submersible motor with coupling and pump OMBW001A 2020.01...
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Fit the supporting clamp to the delivery pipe and suspend the submersible pump from the chain block (Refer Fig. 8) Fig. 8 Typical tripod stand for lowering / lifting submersible pumpsets Supporting clamp Pipe coupling Cable clip Cable Submersible pumpset Borewell casing Arrangement for installation Use the services of a professional and trained mechanic with experience in erecting...
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Electrical installation Check the power supply voltage and frequency and compare with the product requirements specified on the name plate. Observe relevant EB regulations while giving power supply to the motor Use a single cable from the control panel right up to the Submersible Motor Ground the Submersible Motor Ensure the joint is water proof as the cable joint is submerged in water The cable must not be coiled if it is of extra length.
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Cable Lead Wire Connection to Control panel Control panel Cable Terminal Yellow Blue Cable Selection Refer TABLE 2 for the selection of cables from Control Panel to Submersible Motor: Submersible Cable Selection Chart (For 220 V, 50 Hz Ac power supply) Cable size in Sq.mm Motor Rating Current...
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Electrical wiring work All electrical work must be performed by an authorized electrician in compliance with local electrical equipment standards and internal wiring codes. Improper wiring can lead to current leakage, electrical shock, or fire. Provide a dedicated earth leakage circuit breaker, single phase preventer, dry run preventer and overload preventer for the submersible pump.
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Precautions during installation When installing the pump assembly, ensure that it is suspended properly from the tripod stand or else the pump will fall into the bottom of the bore and which is difficult to retrieve. Provide backup suspension while lowering the pump Warning When installing or moving the pump, never suspend the pump by the cable.
11. Basic troubleshooting To prevent serious accidents, disconnect the power supply before inspecting the pump. Warning Read this Operation Manual carefully before requesting repair. Contact the dealer where this equipment was purchased. Servicing and troubleshooting must be handled by qualified persons with proper tools and equipment. Common faults, root cause for these and suggested actions are provided in TABLE 3 below: Fault Possible causes...
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Fault Possible causes Suggested actions Excessive wear of pump Replace the worn-out parts components mainly Impeller, wearing ring, etc. due to high sand content and prolonged operation Discharge pipe coated with Clean the pipe and remove depositions depositions Foreign bodies lodged in impellers Lift the pump and clean the impellers The draw down is larger than Lower the pump if specification meet the required...
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Fault Possible causes Suggested actions The discharge valve is closed Open the valve No water or too low water level in Lower the pump if head is within the specification the borehole The pump The NRV is stuck in its shut Pull out then pump and clean / replace the valve runs but no position...
12. Preventive maintenance checks A definite schedule of preventive maintenance inspections should be established to avoid breakdown, serious damage and extensive downtime. The schedule will depend on operating conditions and experience with similar equipment. The below check list does not represent an exhaustive survey of maintenance steps necessary to ensure safe operation of the submersible pump.
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Maintenance precaution Disconnect the power supply before starting maintenance or inspection of the pump to avoid electrical shock Warning If you find any damages or abnormalities, switch OFF the pump and report the problem to the dealer from whom the set was purchased Note NOTE: The manufacturer assumes no responsibility for damage or injury due to disassembly in the field.
13. Do’s and don’ts Do’s Don’ts Prior to installation, check the water level in the Do not erect the pumpset at the very bottom of the submersible motor. If required, top up with clear and bore hole. Keep at least 3m bottom clearance clean drinking water.
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Do’s Don’ts If a plastic well casing is used in your installation, Do not perform frequent Megger tests on the winding ground the metal well cap or well seal as the winding insulation can weaken When not in use, run the pump at least a few minutes Do not use oversized fuse wires as this can cause the a day motor winding to be damaged due to starter failure /...
14. Important safety instructions Only qualified personnel should be involved for inspection, maintenance and repairs. The successful and safe operation of such a product depends on proper handling, installation and maintenance. It is suggested that in case of non-functioning of the product, the customer is requested to contact the dealer through whom the purchase was made.
15. Storage & handling The submersible pumps are supplied from the factory in proper packing in which they should remain until they are to be installed The product should be stored in a closed, dry and well ventilated room Do not store the products in direct sunlight Handle the pumps with care and do not expose the product to unnecessary impact and shocks During unpacking and prior to installation, care must be taken when handling the pump to ensure that misalignment does not occur due to bending...
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