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EBARA A70W - User Manual

EBARA A70W
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Doc. No. 7313-L4602B Rev. 3B
INSTRUCTION MANUAL
MULTI-STAGE DRY VACUUM PUMP
A70W (A70W-S, A70W-C)
A30W (A30W-S, A30W-C)
A25S (A25S-S)
A10S (A10S-S)
A07V (A07V-S)
Distribute this Instruction Manual to all end user
personnel operating the equipment.
ISSUED BY PRECISION MACHINERY GROUP

Questions and Answers

  • J
    jhahnAug 27, 2025
    Why does the power LED not come on for my EBARA A70W?
    • E
      emily51Aug 27, 2025
      If the Power LED does not come on for your EBARA Water Pump, it could be due to no power supply to the pump (check the power supply), the connector not being connected (connect the power connector), or the ELB not being ON (switch ELB ON).
  • A
    Anne FrenchAug 25, 2025
    How to fix abnormal noise and excessive vibration in EBARA Water Pump?
    • A
      April HumphreyAug 26, 2025
      If you are experiencing Abnormal noise or Excessive vibration with your EBARA Water Pump, it could be due to several reasons. The adjuster foot may not be lowered, so properly set all adjuster feet. The cover might be in contact with other items, so remove objects from the cover. The cover screws could be loose, so tighten the mounting screws. Also, a pump part could be damaged, so replace or overhaul the pump if needed.
  • B
    Brian SmithAug 23, 2025
    What to do if I see ALARM: WATER FLOW LOW on my EBARA Water Pump?
    • A
      April RhodesAug 23, 2025
      If you see the ALARM: WATER FLOW LOW ##.# on your EBARA Water Pump, it could be due to several reasons: the coupler might be disconnected (connect it), the pressure may not be sufficient (apply sufficient pressure), the source valve could be closed (open the valve), the water piping might be clogged (clean or replace it), there could be leaks in the water piping (check the fittings), the instruments might be in failure (replace instruments), or the inlet/outlet might be reversed (connect correctly).

Summary

Safety Information

Important Precautions

Foreword

Introduction

Product Description

Summary

Overview of the A Series dry vacuum pump features and components.

Control System

Describes the built-in sensing unit and control circuit for reliability and safety.

Moving the Pump

Instructions and precautions for safely moving the vacuum pump unit.

Detailed Specifications

Reference to tables and figures for detailed specifications, size, and pump performance.

Installation

Location

Guidelines for selecting a suitable indoor installation location, considering environment and ventilation.

Piping

Procedures for connecting vacuum, exhaust, cooling water, and N2 gas piping.

Electrical Wiring

Instructions for connecting power supply and control signal wiring, including pin assignments.

Operation Mode

How to set dipswitches on the control panel for various operating modes and configurations.

Operation

Before Starting

Steps to take before starting the pump, including checking cooling water and N2 gas.

Operation

Guidelines for operating the pump, including safety warnings and modes.

Maintenance and Overhaul

Routine Inspection

Periodic checks to ensure the pump is operating under normal conditions without alarms.

Piping Maintenance

Procedures for maintaining vacuum and exhaust piping, including purging and leak checks.

Lubricant Oil

Instructions for checking, filling, and disposing of lubricant oil.

Spare (Maintenance) Parts List

List of consumable and spare parts required for pump maintenance and operation.

Overhaul

Guidance on performing overhaul work, recommending trained personnel.

Removal and Transportation

Troubleshooting

Troubleshooting (1) Basic Trouble

Common abnormal symptoms and their corrective actions for basic operational issues.

Troubleshooting (2) ALARM

Troubleshooting guide for various ALARM conditions and their causes.

Troubleshooting (3) TRIP

Troubleshooting guide for various TRIP conditions and their corrective actions.

Troubleshooting (4) TRIP [Options]

Troubleshooting specific TRIP conditions related to optional features or specific events.

Inquiries

North America

Contact information for EBARA Technologies, Inc. in North America.

Asia

Contact information for EBARA Corporation and its subsidiaries in Asia.

Europe

Contact information for EBARA Corporation branches in Europe.

Appendix 1

Material Safety Data Sheet

Safety data sheet for the vacuum pump oil used in the equipment.

Appendix 2

Safety Interlocks

Explanation of standard and optional safety interlocks that shut down the pump upon detecting unsafe conditions.

Appendix 3

EBARA Dry Pumps and SEMI S2-93 A (S2-0200)

Discussion on EBARA dry pumps and compliance with SEMI health and safety guidelines.

Appendix 4

Leak Check Procedure

General procedure for performing leak checks on the system and pump.

Appendix 5

Returning Pumps for Rebuild in U.S.

Regulations and procedures for shipping pumps for rebuild in the United States.

EBARA A70W Specifications

General IconGeneral
BrandEBARA
ModelA70W
CategoryWater Pump
LanguageEnglish

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