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Tsurumi Pump LH Series - User Manual

Tsurumi Pump LH Series
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17200470/B-10224-1
INTRODUCTION
Thank you for selecting the Tsurumi LH/LH-W Series submersible high-head/extra high-head dewatering
pumps.
This operation manual explains the product operations and gives important precautions regarding its safe
use. In order to use the product to maximum benet, be sure to read the instructions thoroughly and follow
them carefully.
To avoid accident, do not use the pump in any way other than as described in this operation manual. Note
that the manufacturer cannot be responsible for accidents arising because the product was not used as
prescribed. After reading this operation manual, keep it nearby as a reference in case questions arise during
use.
When lending this product to another party, always be sure to include this operation manual as well.
If this operation manual should become lost or damaged, ask your nearest dealer or Tsurumi representative
for another copy.
Every effort has been made to ensure the completeness and accuracy of this document. Please contact your
nearest dealer or Tsurumi representative if you notice any possible error or omission.
The contents of this document may not be copied in whole or in part without the express permission of
Tsurumi Manufacturing Co., Ltd.
OPERATION MANUAL
CONTENTS
1. BE SURE TO READ FOR YOUR SAFETY ..................... 1
2. NAME OF PARTS .......................................................... 4
3. PRIOR TO OPERATION ............................................... 5
4. INSTALLATION ............................................................. 6
5. ELECTRICAL WIRING .................................................... 7
6. OPERATION .................................................................... 9
7. MAINTENANCE AND INSPECTION ............................... 11
8. DISASSEMBLY AND REASSEMBLY ............................. 13
9. TROUBLESHOOTING ..................................................18
TSURUMI MANUFACTURING CO., LTD.
LH/LH-W
Series
Submersible High-Head/Extra High-Head Dewatering Pumps
(LH6110 -51/61, LH8110 -51/61, LH4110W -51/61)

Questions and Answers

Summary

Safety Precautions

Product Specification Precautions

Warnings about operating the product outside specified conditions, potential for electrical hazards.

Transport and Installation Precautions

Guidance for safe transport and installation, emphasizing proper lifting and wiring.

Test Operation and Operation Precautions

Safety measures during pump testing and normal operation to prevent injury.

Power Outage Safety

Safety measures when power is restored after an outage, preventing unexpected startup.

General Safety Guidelines

Other important safety advice not covered in specific categories.

Name of Parts

Prior to Operation

Product Specifications

Details on product specifications and applicable conditions for safe use.

Major Standard Specifications

Key technical specifications for the pump and motor components.

Installation

Maximum Water Pressure

Table specifying maximum water pressure limits for different pump models.

Installation Preparation

List of tools and instruments required before starting the installation process.

Installation Checks

Essential checks to perform before proceeding with pump installation.

Installation Safety Warnings

Important warnings and cautions during the pump installation procedure.

Electrical Wiring

Performing Electrical Wiring

General guidelines and warnings for performing electrical wiring safely.

Grounding Requirements

Importance and methods of proper grounding for pump safety.

Cabtyre Cable Handling

Precautions for handling and extending the pump's power cable.

Connecting the Cabtyre Cable

Step-by-step guide for connecting the power cable to terminals.

Operation

Before Starting Operation

Checks to perform before powering on the pump.

Test Operation Procedure

Procedure for performing a short test run to verify functionality.

Operation Water Level

Guidelines for maintaining the correct water level during operation.

Motor Protection Systems

Explanation of the miniature protector and water leak sensor systems.

Maintenance and Inspection

Prior to Inspection

Safety steps to take before starting any inspection or maintenance.

Regular Inspection Schedule

Recommended intervals for various pump inspection tasks.

Oil Inspection and Change

Procedures for checking and changing the pump's oil.

Bearing Grease Refill

Instructions for periodic refilling of bearing grease for specific models.

Disassembly and Reassembly

LH6110;8110 Disassembly

Step-by-step guide for disassembling LH6110 and LH8110 models.

LH4110 W Disassembly

Step-by-step guide for disassembling the LH4110W model.

Pump Reassembly Process

General instructions for reassembling the pump after disassembly.

Troubleshooting

Tsurumi Pump LH Series Specifications

General IconGeneral
ModelLH Series
Power SourceElectric
TypeSubmersible Pump
ApplicationIndustrial
Discharge Bore50 mm to 100 mm
Shaft SealMechanical seal
LubricantOil
Motor TypeInduction motor
Outlet Size50 mm to 100 mm
Voltage440V
Frequency50 Hz / 60 Hz
PhaseSingle-phase / Three-phase
MaterialCast iron, Stainless steel

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