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BUSCH RA 0255 D - User Manual

BUSCH RA 0255 D
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Instruction Manual
R5 ATEX
Oil-Lubricated Rotary Vane Vacuum Pumps
RA 0165 D, RA 0205 D, RA 0255 D, RA 0305 D
0870570604/-0011_en / Original instructions / Modifications reserved 12/03/2021
Ateliers Busch S.A.
Zone industrielle, 2906 Chevenez
Switzerland

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Questions and Answers

  • M
    martinezadamAug 26, 2025
    Why BUSCH RA 0255 D has abnormal oil consumption?
    • L
      Lauren HamptonAug 27, 2025
      Abnormal oil consumption in your BUSCH Water Pump can stem from a few issues: oil leaks (contact Busch to replace seals), a malfunctioning float valve (FV) (contact Busch to check and repair the float valve and oil return line), or running the machine at atmospheric pressure for an extended period (ensure the machine operates under vacuum).
  • V
    Vincent BatesAug 25, 2025
    Why BUSCH RA 0255 D Water Pump fumes or expels oil?
    • D
      david16Aug 25, 2025
      If your BUSCH Water Pump is fuming or expelling oil droplets, it could be due to: partially clogged exhaust filters (EF) – replace them; an exhaust filter (EF) with o-ring not fitted properly – ensure correct positioning; or a malfunctioning float valve (FV) – contact Busch for repair.
  • R
    Richard KingAug 23, 2025
    Why is the oil in my BUSCH RA 0255 D emulsified?
    • N
      Nathaniel FrankAug 25, 2025
      If the oil in your BUSCH Water Pump is emulsified, it might be because the machine sucked in liquids or significant amounts of vapor, in which case you should contact Busch to flush the machine. Also, clean the filter of the gas ballast valve (GB). Consider modifying the operational mode.

Summary

Safety

Product Description

2.5 Explanation of ATEX Classification

Details ATEX marking components and their meaning for explosive atmospheres.

2.6 Safety concept

Outlines the safety strategy focusing on preventing sparks and excessive temperatures.

2.6.1 ATEX Classifications and Associated Accessories

Defines required accessories based on specific ATEX classification types.

Installation

5.1 Installation Conditions

Specifies environmental and physical requirements for safe machine installation.

5.6 Electrical Connection

Covers electrical installation, safety, and connection of the motor.

5.7 Electrical Connection of the Monitoring Devices

Explains the connection of monitoring sensors like temperature and pressure switches.

Commissioning

Maintenance

Overhaul

Decommissioning

Troubleshooting

Technical Data

Oil

BUSCH RA 0255 D Specifications

General IconGeneral
BrandBUSCH
ModelRA 0255 D
CategoryWater Pump
LanguageEnglish

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