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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

Table of Contents

Other manuals for BUSCH RA 0255 D

Preview: Installation And Operating Instructions
Installation And Operating Instructions28 pages
Preview: Instruction Manual Supplement
Instruction Manual Supplement12 pages

Questions and Answers

  • S
    Stephanie CruzSep 8, 2025
    Why BUSCH Water Pump does not reach the usual pressure?
    • M
      Michael PruittSep 8, 2025
      If your BUSCH Water Pump isn't reaching the usual pressure on the suction connection, check these potential causes: The oil level might be too low, so top up the oil. The inlet screen (IS) could be partially clogged, so clean the inlet screen (IS). If your pump has an inlet filter cartridge (optional), it might be clogged, so replace the inlet filter cartridge. If none of these resolve the issue, internal parts may be worn or damaged, so repair the machine or contact Busch.
  • J
    Julie CarpenterSep 7, 2025
    What to do if my BUSCH RA 0255 D runs too hot?
    • J
      Joseph PeckSep 7, 2025
      If your BUSCH Water Pump is running too hot, several factors could be the cause. Insufficient cooling may be the issue, so remove any dust and dirt from the machine. Also, the ambient temperature might be too high, so observe the permitted ambient temperature. Low oil level can also cause overheating, so top up the oil. Lastly, partially clogged exhaust filters (EF) could be the problem, in which case replace the exhaust filters (EF).
  • S
    sara75Aug 22, 2025
    Why is the oil in my BUSCH RA 0255 D Water Pump black?
    • P
      petersthomasAug 22, 2025
      If the oil in your BUSCH Water Pump is black, it could be due to oil change intervals being too long, in which case you should contact Busch to flush the machine. Another possibility is a defective inlet filter (optional), which should be replaced. Also, check if the machine is running too hot.
  • J
    jason05Sep 4, 2025
    Why does my BUSCH RA 0255 D Water Pump emit fumes or oil droplets?
    • B
      Brent WilliamsSep 4, 2025
      If your BUSCH Water Pump is emitting fumes or oil droplets through the gas discharge, it could be because the exhaust filters (EF) are partially clogged and need replacement. Also, ensure that the exhaust filter (EF) with o-ring is correctly positioned. If the problem persists, the float valve (FV) might not be working correctly; in this case, check the float valve and the oil return line, and contact Busch for repair if necessary.
  • L
    Lori KennedySep 3, 2025
    Why is my BUSCH Water Pump running very noisily?
    • A
      Angela YoungSep 3, 2025
      If your BUSCH Water Pump is operating with excessive noise, it could be due to a worn coupling (CPL), which would need replacement. Alternatively, stuck vanes or defective bearings might be the cause, in which case you should contact Busch for machine repair.
  • L
    Laurie ButlerSep 1, 2025
    Why is my BUSCH RA 0255 D Water Pump consuming oil abnormally?
    • L
      Lauren HarrisSep 1, 2025
      Abnormal oil consumption in your BUSCH Water Pump can stem from a few causes. Check for oil leaks and consider replacing the seals. A malfunctioning float valve (FV) can also lead to this issue, so inspect the float valve and the oil return line. Finally, ensure the machine isn't running at atmospheric pressure for extended periods; it should operate under vacuum.
  • D
    Daniel WarnerAug 31, 2025
    What to do if my BUSCH RA 0255 D does not reach the usual pressure?
    • G
      grayjosephAug 31, 2025
      If your BUSCH Water Pump isn't reaching its usual suction pressure, start by checking the oil level and top it up if it's low. The inlet screen (IS) might be partially clogged, so clean it. If your pump has an optional inlet filter cartridge, it might be clogged and need replacement. If these steps don't resolve the issue, internal parts may be damaged, requiring professional repair by contacting Busch.
  • C
    Christopher ClarkAug 30, 2025
    Why is my BUSCH RA 0255 D Water Pump running too hot?
    • A
      Andrew GarciaAug 30, 2025
      If your BUSCH Water Pump is running too hot, several factors could be responsible. Insufficient cooling may be the issue, so try removing dust from the machine. Also, check if the ambient temperature is too high and ensure it's within the recommended range. Low oil level can also cause overheating, so top up the oil if necessary. Finally, a partially clogged exhaust filter (EF) can cause the pump to overheat, so replace the exhaust filter (EF).
  • N
    Nancy EllisAug 29, 2025
    What to do if my BUSCH RA 0255 D Water Pump does not start?
    • T
      tommyjoyceAug 29, 2025
      If your BUSCH Water Pump doesn't start, it could be due to several reasons. First, check if the motor is receiving the correct voltage. If the voltage is correct, the motor might be defective and need replacement. Another possible cause is a defective coupling (CPL), which would also require replacement.
  • C
    Christopher LutzAug 27, 2025
    What does it mean if the oil in my BUSCH Water Pump is emulsified?
    • O
      owoodAug 27, 2025
      If the oil in your BUSCH Water Pump is emulsified, it's likely that the machine has sucked in liquids or significant amounts of vapor.

Summary

Safety

Product Description

2.1 Operating Principle

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.

5.2 Connecting Lines; Pipes

5.3 Earth Connection

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.

5.8 Flowchart

Commissioning

Maintenance

7.1 Maintenance Schedule

7.3 Oil and Oil Filter Change

Overhaul

Decommissioning

Troubleshooting

Technical Data

Oil

BUSCH RA 0255 D Specifications

General IconGeneral
BrandBUSCH
ModelRA 0255 D
CategoryWater Pump
LanguageEnglish

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