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EBARA GS - User Manual

EBARA GS
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EBARA End Suction
Volute Pumps
GS/GSD Model
Instruction Manual
To installation personnel:
Be sure to issue the customer’s pump operation, maintenance, and inspection personnel with copies of
this manual.
CONTENTS
1
Warnings
.................................................. 2
3. Adjustment of gland packing
.......................
14
2
Safety cautions
........................................ 2
4. Replacement of gland packing
..................
14
3
Delivery checks
........................................ 6
5.
Cautions for operation ..........................
15
1. The pump and accessories..........................6
7
Maintenance
...............................................
15
2. Nameplate ...................................................6
1. Daily inspection......................................... 16
3. Lifting and carrying in/out.............................7
2. Prolonged stoppage and storage………... 17
4
Specifications
.......................................... 7
3. Replaceable parts ..................................... 17
5
Installation
................................................ 8
8
Troubleshooting
.................................... 19
1. Location .......................................................8
9
Structure
................................................ 22
2. Pipes ...........................................................9
1. External view and residual risks ............... 22
3. Alignment................................................... 10
2. Exploded view .......................................... 23
4. Electrical connection .................................. 11
3. Accessories .............................................. 24
5. Electrical maintenance .............................. 12
10
Disassembly and Assembly
.................. 25
6
Operation
................................................ 12
1. Disassembly ............................................. 25
1. Preparation for operation ........................... 12
2. Assembly .................................................. 31
2. Operation
・
Stopping ................................. 13
CAUTION
Thank you for choosing the EBARA GS/GSD Model End suction volute Pump. EBARA/Ebara Bombas
América do Sul Ltda.(EBAS) take every caution in manufacturing the product for safe use by the
customer. However, handling this pump in an inappropriate manner may reduce its functional capacity
and result in an accident.
This operation manual explains the proper procedures concerning the installation, operation, and
maintenance of the product. This manual should be read before conducting operation and
maintenance and inspections on this pump.
Installation personnel must provide copies of this manual to the customer’s pump operation,
maintenance and inspection personnel. Keep this manual in a safe place where it can be consulted at
any time.

Table of Contents

Other manuals for EBARA GS

Preview: Instruction And Maintenance Manual
Instruction And Maintenance Manual534 pages

Questions and Answers

  • K
    Kimberly GriffinSep 9, 2025
    How to fix excessive vibration and noise in EBARA Water Pump?
    • P
      Pamela BerrySep 9, 2025
      Excessive vibration and noise in your EBARA Water Pump can stem from several causes: * Faulty installation (check installation). * Damaged bearings (replace the bearings). * Flow rate too high (reduce the aperture of the delivery valve). * Flow rate too low (increase the aperture of the delivery valve). * Blocked impeller (remove foreign bodies). * Incorrect rotation direction (check and correct the connection). * Friction in the rotation areas or a bent shaft (repair in specialist workshop). * Cavitation (seek expert advice). * Vibrations in the piping (replace the piping or fit an inverter).
  • H
    heatherdouglasSep 7, 2025
    What to do if EBARA Water Pump has a power surge?
    • N
      ndeleonSep 7, 2025
      If your EBARA Water Pump experiences a power surge, the cause might be low voltage or an imbalance between phases (check the power supply), too low head or too high flow rate (partially shut off the delivery valve), using a 50 Hz pump at 60 Hz (check the nameplate details), foreign bodies inside the pump (remove foreign bodies), incorrect mechanical seal fitting (fit it correctly), damaged bearings (replace the bearings), friction in rotation areas or a bent shaft (repair in specialist workshop), incorrect rotation direction (check and correct the connection), or high liquid density and/or viscosity (review the project).
  • D
    Dr. Kimberly MoodyAug 22, 2025
    Why won't my EBARA GS motor start?
    • R
      Raymond ByrdAug 22, 2025
      If the EBARA Water Pump motor won't start, several issues could be the cause. The control panel might not be working correctly, so it's important to check all conditions. There could be faults in the power supply, which would require checking and repairing. The pump might be clogged, in which case you should remove any foreign bodies. There may also be friction on the rotation shaft; try rotating it by hand and then reassembling. In the worst case, the motor may have failed and require repair.
  • R
    Roberto WernerSep 5, 2025
    Why my EBARA Water Pump motor will not start?
    • B
      brownfranciscoSep 5, 2025
      If the EBARA Water Pump motor won't start, possible causes include a faulty control panel (check all conditions), motor failure (repair the motor), power supply faults (check and repair), friction on the rotation shaft (rotate by hand and reassemble), or a clogged pump (remove foreign bodies).
  • T
    Travis PetersSep 4, 2025
    What to do if my EBARA GS Water Pump is not priming?
    • T
      Theresa HallSep 4, 2025
      If your EBARA Water Pump isn't priming, it could be due to foreign bodies in the bottom valve, so remove them. A malfunction in the bottom valve is another possibility, so replace the valve. Water leakage from the suction pipe could also prevent priming; check the suction pipe.
  • T
    Tamara JonesSep 2, 2025
    What causes low rotation speed in my EBARA GS Water Pump?
    • B
      bcraigSep 3, 2025
      A low rotation speed in your EBARA Water Pump can be caused by several factors. Low voltage is a possibility, so change the nominal voltage. Poor Star/Delta commutation could also be the cause, so correct the cabling. Overloading can also reduce the rotation speed; reduce the current. Finally, a defective electrical connection might be the issue; correct the electrical connections.
  • H
    halldavidSep 1, 2025
    Why are the bearings on my EBARA GS Water Pump overheating?
    • A
      Andrea MitchellSep 1, 2025
      If the bearings of your EBARA Water Pump are overheating, it could be because the bearings are damaged, so replace the bearings. Another possible cause is operating the pump for a long time with the valve closed or half-closed; avoid such a situation by fully opening the valve or stopping the pump.
  • E
    esmithAug 31, 2025
    What causes abnormal noise and vibrations in my EBARA GS?
    • E
      Erik HallAug 31, 2025
      Abnormal noise or excessive vibrations in your EBARA Water Pump can be caused by several issues. It could be due to operation without a phase, so check the power supply. Power surges can also cause these issues, so correct them. Friction between the rotor and stator might be the problem; align and/or replace the bearing. Obstructions in the cooling fan can also cause these symptoms; remove any foreign bodies. A fault in installing the motor or poor Star/Delta commutation can also lead to these problems; connect the pump correctly or correct the cabling, respectively.
  • L
    Laurie EverettAug 30, 2025
    Why is my EBARA GS leaking excessively from the shaft seal?
    • X
      xreedAug 30, 2025
      Excessive water leakage from the shaft seal of your EBARA Water Pump could be due to a defective fitting of the mechanical seal, so fit it correctly. The mechanical seal might also be damaged, requiring replacement. Overpressure in delivery could be another cause, so review the project. The shaft might also be bent.
  • J
    jamieriddleAug 28, 2025
    Why does my EBARA GS Water Pump initially pump water but then stop?
    • J
      Jennifer PetersenAug 29, 2025
      If water comes out of your EBARA Water Pump initially but then stops abruptly, it could be because the pump has not been primed correctly, so prime the pump correctly. Air entering the system could also be the cause; check and repair the suction pipe and shaft seal. Air bubbles in the suction pipes might also be the problem; vent the pipes. Finally, the suction head might be too high for the pump; review the project.

Summary

Pump Safety and Warnings

Warning Grades and Cautions

Explanation of warning grades (Warning, Caution) and their meanings for safe operation.

General Safety Cautions

Essential safety precautions to prevent injury and equipment damage.

Pump Delivery and Specifications

Delivery Checks

Procedures for inspecting the pump and accessories upon delivery.

Nameplate Details

Understanding pump specifications and identifying 50Hz vs 60Hz differences.

Technical Specifications

Key technical data and standard specifications for the GS/GSD pump models.

Pump Installation Procedures

Installation Location

Guidelines for selecting an appropriate installation site for the pump.

Piping Requirements

Instructions for correct installation and arrangement of suction and delivery pipes.

Shaft Alignment

Procedures for aligning pump and motor shafts for proper operation.

Electrical Connections

Steps and precautions for connecting the pump's electrical power supply.

Electrical Maintenance

Guidance on maintaining the electrical components of the pump system.

Pump Operation and Maintenance

Operation Preparation

Essential steps to take before starting the pump for the first time.

Operation and Stopping

Safe procedures for starting, operating, and stopping the pump.

Gland Packing Adjustment

How to adjust gland packing for optimal performance and minimal leakage.

Gland Packing Replacement

When and how to replace gland packing due to wear or damage.

Operational Cautions

Important warnings and recommendations for safe and efficient pump operation.

Daily Inspection Routine

Routine checks to perform daily to ensure the pump is operating correctly.

Stoppage and Storage Procedures

Procedures for storing the pump during extended periods of non-use.

Replaceable Parts Guide

Identifying common parts that require periodic replacement.

Troubleshooting Guide

Pump Fault Diagnosis

Common pump faults, their causes, and recommended corrective actions.

Motor Fault Diagnosis

Troubleshooting common motor issues like starting problems, noise, and overheating.

Pump Structure and Service

External View and Risks

Identifying external parts of the pump and associated risks.

Exploded Component View

Detailed breakdown of pump components with identification numbers.

Included Accessories

List of standard accessories supplied with the pump.

Disassembly Guide

Step-by-step guide for taking the pump apart for maintenance or repair.

Assembly Guide

Step-by-step guide for reassembling the pump after maintenance or repair.

EBARA GS Specifications

General IconGeneral
TypeCentrifugal Pump
ModelGS
ApplicationWater supply, irrigation, industrial
MaterialCast iron, stainless steel
Liquid TemperatureUp to 90°C
Maximum Working Pressure10 bar
Motor TypeElectric
Speed2900 rpm

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