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Tsurumi Pump LB Series Operation Manual

Submersible portable dewatering pump
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LB
INTRODUCTION
Thank you for selecting the Tsurumi LB Submersible General Dewatering Portable 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. After reading
this Operation Manual, keep it in a location that is easily accessible, so that it can be re-
ferred to whenever information is needed while operating the equipment.
TSURUMI MANUFACTURING CO., LTD.
Submersible Portable Dewatering Pump
OPERATION MANUAL
1. BE SURE TO READ FOR SAFTY ................................... 1
2. PART NAMES.................................................................. 4
3. PRIOR TO OPERATION ............................................... 4
4. INSTALLATION ............................................................. 5
5. ELECTRICAL WIRING ................................................... 8
6. OPERATION .................................................................... 10
7. MAINTENANCE AND INSPECTION ............................... 14
9. TROUBLESHOOTING .................................................. 18
LB-250/480
LB-250A/480A
LB-800
LB-800A
CONTENTS
17200466/B-10221-1
LBT-250/480
LBZ-480
LBT-800
LBZ-800

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Summary of Contents for Tsurumi Pump LB Series

  • Page 1: Table Of Contents

    17200466/B-10221-1 Submersible Portable Dewatering Pump LB-250/480 LBT-250/480 LB-250A/480A LBZ-480 LB-800 LBT-800 LB-800A LBZ-800 OPERATION MANUAL INTRODUCTION Thank you for selecting the Tsurumi LB Submersible General Dewatering Portable 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.

  • Page 2: Be Sure To Read For Safty

    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 3 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 4 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.).

  • Page 5: Part Names

    2 PART NAMES Example Handle Hose Coupling Cabtyre Cable Mechanical Seal Lubricant Oil Lifter V-Ring Shaft Sleeve Oil Casing Rear Liner Oil Plug Impeller Suction Cover 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. Specification Check Check the nameplate of the unit to verify that it is the product that you have ordered.

  • Page 6: Accessory Check

    Accessory Check Verify that all accessory items are included in the package. • Hose Band ........1 pc - Models for US are excluded • Operation Manual ....... 1 Note: If you discover any damage or discrepancy in the product, please contact the dealer where this equipment was purchased or the Tsurumi sales off ce in your area.

  • Page 7: Three-Phase Power Supply

    Preparation for Installation Single-phase power supply: Single-Phase Use a megger to measure the resistance between the tip of the cabtyre cable plug and the ground terminal to verify the insulation resistance of the motor. Measure twice the resistance between each of the two tips of the plug and ground.
  • Page 8 (2) Handle the pump carefully without applying shock to it, such as by dropping it. To suspend the pump, do so manually or by attaching a rope or chain to its handles. Rope CAUTION The rope for suspending the pump during its installation must be of a thickness that accommodates the weight of the pump.

  • Page 9: 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 10: Motor Protector

    Motor Protector The pump is equipped with an internal motor protector.(Circle Thermal Protector / Miniature Protector) If a current overload or overheating occurs under the symptoms given below, the motor will stop automatically to protect the motor regardless of the water level at the time of operation. In this type of motor protector, the motor will automatically restart after cooling down.

  • Page 11: 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 12: Operating Water Level

    (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.
  • Page 13 6-2 Automatic Operation (for float type LBZ-480 / 800) Trial Operation Check float switch operation Equipped with floats to detect the water level the automatic type (LBZ) pump can perform an automatic drainage operation alone by merely connecting its cable to a power supply. Connect the power and perform a trial operation as follows: (1) Direct all the floats downward.

  • Page 14: Operation Flow Chart

    LB-250A / 480A / 800A) Operation Flow Chart ( To enable the user to bring the pumps ability into full play, this chart describes the various control modes that are made possible by the combinations of the electrode and timer functions. Water Level Relay Unit Pump...

  • Page 15: 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 16: Replacement Parts

    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. If the pump remains immersed in water, operate it on a regular basis (i.e.

  • Page 17: 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 18: Reassembly Procedure

    Reassembly Procedure Observe the precautions given below and reassemble the unit in the reverse order of disassembly. Note: After completing the reassembly, make sure to f ll the pump with the specif ed 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. After reinstalling the impeller or the suction cover, check that the impeller rotates smoothly and that there is no interference between the pump casing and the suction cover.

  • Page 19: 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 purchased, or the Tsurumi sales office in your area.

This manual is also suitable for:

Lb-250Lbt-250Lb-480Lbt-480Lb-250aLb-480a ... Show all

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