Tsurumi Pump LB-250 Operation Manual
Submersible general dewatering portable pump
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- Operation manual (16 pages)
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Summary of Contents for Tsurumi Pump LB-250
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Page 17: Table Of Contents
17200120/B-10083-3 Submersible Portable Dewatering Pump LB-1500 LBT-1500 OPERATION MANUAL INTRODUCTION Thank you for selecting the Tsurumi LB Submersible Portable Dewatering Pump for your application. This equipment should not be used for applications other than those listed in this manual. Failure to observe this precaution may lead to a malfunction or an accident. In the event of a malfunction or an accident, the manufacturer will not assume any liability. -
Page 18: Be Sure To Read For Your Safety
1 BE SURE TO READ FOR YOUR SAFETY Be sure to thoroughly read and understand the SAFETY PRECAUTIONS given in this section before using the equipment in order to operate the equipment correctly. The precautionary measures described in this section are intended to prevent danger or damage to you or to others. - Page 19 CAUTION Be sure to provide a ground wire Prevent a metallic object or dust securely. Do not connect the from sticking to the power plug. Adhesion of foreign object to the ground wire to a gas pipe, plug could cause electrical water pipe, lightening rod, or telephone ground wire.
- Page 20 CAUTION Do not use the product for hot or When the product will not be used warm liquid over 40℃, as doing so for an extended period, be sure to will damage the product, which turn off the power supply (earth may lead to electrical leakage or leakage circuit breaker, etc.).
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Page 21: Part Names
2 PART NAMES Example Cabtyre Cable Hose Coupling Handle Oil Lifter Mechanical Seal Lubricant Oil Plug V-Ring Shaft Sleeve Oil Casing Wearing Pump Casing Impeller Strainer Stand 3 PRIOR TO OPERATION After unpacking, verify the contents. Product Inspection Inspect the product for damage during shipment, and make sure all bolts and nuts are tightened properly. -
Page 22: Installation
Product Specifications CAUTION Do not operate this product under any conditions other than those that have been specified. Major Standard Specifications Consistency and Water, Rain Water, Font Water, Sand carring Water, Applicable Liquids Temperature Ground Water ; 0 ~ 40℃ Impeller Semi-Open Type Shaft Seal... - Page 23 Three-phase power supply: Three-Phase MΩ Use a megger to measure the resistance be- tween each core of the cabtyre cable and the U V W G (green) ground wire to verify the insulation U-Red(Brown) G-Green(Green/Yellow) resistance of the motor. V-White(Blue or Grey) W-Black(Black) Insulation resistance reference value = 20M Ω...
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Page 24: Electrical Wiring
5 ELECTRICAL WIRING Electrical Wiring Work WARNING • All electrical work must be performed by an authorized electrician, in compliance with local electrical equipment standards and internal wiring codes. Never allow an unauthorized person to perform electrical work because it is not only against the law, but it can also be extremely dangerous. - Page 25 Motor Protector The pump is equipped with a built-in motor protector (circle thermal protector). If a current overload or overheating occurs under the symptoms given below, the pump will stop automatically to protect the motor regardless of the water level at the time of operation.
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Page 26: Operation
6 OPERATION Prior to Operation (1) Once again, check the nameplate of the pump to verify that its voltage and frequency are correct. CAUTION Improper voltage and frequency of the power supply will prevent the pump from attaining its full potential, and may also damage the pump. Note: Verify the specs on the pump's nameplate. - Page 27 (3) Connect the pump to the pipe and submerge it in water. (4) Operate the pump for a short time (3 to 10 minutes) and perform the following checks: Using an AC ammeter (clamp), measure the operating current at the phases U, V, and W that are connected to the terminal board. U V W G Ground COUNTERMEASURE...
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Page 28: Maintenance And Inspection
7 MAINTENANCE AND INSPECTION Regular maintenance and inspection are indispensable to maintaining the pump's performance. If the pump behaves differently from its normal operating condition, refer to section "9. Troubleshooting" and take appropriate measures at an early stage. We also recommend that you have a spare pump on hand for an emergency. - Page 29 Storage If the pump will not be operated for a long period of time, pull the pump up, wash the pump, allow it to dry, and store it indoors. Note: For reinstallation, be sure to perform a trial operation before putting the pump into operation.
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Page 30: Disassembly And Reassembly Procedure
8 DISASSEMBLY AND REASSEMBLY PROCEDURE Prior to Disassembly and Reassembly WARNING Before disassembling and reassembling the pump, be sure that the power supply (i.e. circuit breaker) is disconnected, and remove the cabtyre cable from the outlet or the terminal board. Do not connect or disconnect the power plug with a wet hand, in order to prevent electrical shock. - Page 31 Reassembly Procedure Observe the precautions given below and reassemble the unit in the reverse order of disas- sembly. Note: After completing the reassembly, make sure to fill the pump with the specified amount of oil. The packings must be replaced with a new part. If any part is worn or damaged, make sure to replace it with a new part.
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Page 32: Troubleshooting
9 TROUBLESHOOTING WARNING To prevent serious accidents, disconnect the power supply before inspecting the pump. Read this Operation Manual carefully before requesting repair. After re-inspecting the pump, if it does not operate normally, contact the dealer where this equipment was pur- chased, or the Tsurumi sales office in your area.
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