BUSCH R5 Oxygen RA 0400 C

Questions and Answers

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Pamela GlennAug 12, 2025
Why is the oil in my BUSCH R5 Oxygen RA 0400 C Water Pump black?
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  Nicole ChavezAug 12, 2025
  If the oil in your BUSCH Water Pump is black, it could be due to a few reasons. One possibility is that the oil change intervals are too long, in which case you should flush the machine (contact Busch). Another reason could be a defective inlet filter (optional), which should be replaced. The machine running too hot can also cause the oil to turn black; refer to the troubleshooting steps for "The machine runs too hot".
D
Dennis HarrisAug 16, 2025
Why is the oil in my BUSCH Water Pump emulsified?
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  John WilliamsAug 16, 2025
  If the oil in your BUSCH Water Pump is emulsified, it could be because the machine sucked in liquids or significant amounts of vapor. In this case, flush the machine (contact Busch) and clean the filter of the gas ballast valve (GB). Also, consider modifying the operational mode.
R
Robert StephensAug 19, 2025
What to do if my BUSCH R5 Oxygen RA 0400 C Water Pump does not start?
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  Kenneth HallAug 19, 2025
  If your BUSCH Water Pump doesn't start, it could be due to several reasons. First, check the power supply to ensure the motor is receiving the correct voltage. If the power supply is adequate, the motor itself might be defective and need replacement. Alternatively, the coupling (CPL) could be defective, also requiring replacement.
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Nathan WilliamsAug 23, 2025
Why is my BUSCH R5 Oxygen RA 0400 C running too hot?
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  Andrew MyersAug 25, 2025
  If your BUSCH Water Pump is running too hot, there are several potential causes. Insufficient cooling could be the issue, so start by removing any dust and dirt from the machine and checking the cooling fan. Also, verify that the ambient temperature is within the permitted range. Low oil level can also cause overheating, so top up the oil if necessary. Finally, check if the exhaust filters (EF) are partially clogged and replace them if needed.
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Adam AriasAug 27, 2025
What to do if my BUSCH R5 Oxygen RA 0400 C Water Pump does not reach the usual pressure?
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  Erin RichardsonAug 27, 2025
  If your BUSCH Water Pump isn't reaching the usual pressure, several factors could be responsible. Begin by checking the oil level and topping it up if it's low. Next, inspect the inlet screen (IS) for partial clogging and clean it if necessary. If your pump has an optional inlet filter cartridge, check it for clogs and replace it if needed. If these steps don't resolve the issue, internal parts may be worn or damaged, requiring professional repair (contact Busch).
C
Christian NewtonAug 31, 2025
Why is my BUSCH R5 Oxygen RA 0400 C expelling oil droplets?
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  everettbrittanyAug 31, 2025
  If your BUSCH Water Pump is fuming or expelling oil droplets, it could be due to a few reasons. Start by checking the exhaust filters (EF) and replacing them if they are partially clogged. Also, make sure that the exhaust filter (EF) with o-ring is correctly positioned. If the issue persists, the float valve (FV) might not be working correctly, so check the float valve and the oil return line and repair if necessary (contact Busch).
B
Bailey AdamsSep 4, 2025
How to fix a noisy BUSCH Water Pump?
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  travis07Sep 4, 2025
  If your BUSCH Water Pump is running very noisily, it could be due to several reasons. A worn coupling (CPL) could be the culprit, requiring replacement. Alternatively, there may be stuck vanes or defective bearings, both of which require professional repair (contact Busch).
D
Douglas HallSep 8, 2025
Why does my BUSCH R5 Oxygen RA 0400 C have abnormal oil consumption?
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  wayne42Sep 8, 2025
  If your BUSCH Water Pump has abnormal oil consumption, it could be due to oil leaks, which would require replacing the seals (contact Busch). Another possible cause is a malfunctioning float valve (FV); in this case, check the float valve and the oil return line, and repair if necessary (contact Busch). Lastly, ensure that the machine operates under vacuum, as running it at atmospheric pressure for extended periods can also lead to abnormal oil consumption.

Summary

Safety

Understanding Safety Warnings and Symbols

Explains DANGER, WARNING, CAUTION, NOTICE, and NOTE symbols used in the manual.

Product Description

Product Components Overview

Identifies key components and their labels on the R5 Oxygen vacuum pump.

Operating Principle

Details the rotary vane mechanism and how the vacuum pump operates.

Applications and Start Controls

Specifies suitable applications, especially for oxygen, and details start controls.

Standard Accessories

Lists and describes the standard accessories included with the vacuum pump.

Optional Accessories

Details various optional accessories that can be fitted to enhance pump functionality.

Transport

Safe Handling and Lifting During Transport

Provides essential safety guidelines for lifting, handling, and securing the machine during transport.

Storage

Storage Conditions and Procedures

Details how to store the machine properly, including temperature and environmental requirements.

Installation

Installation Conditions and Environment

Specifies required installation conditions, safety warnings, and environmental considerations.

Connecting Lines and Pipes

Guidance on connecting suction and discharge lines, including size and stress considerations.

Suction and Discharge Connections

Details on making the suction and discharge connections, including size and safety.

Cooling Water Connection (Optional)

Instructions for connecting the optional cooling water to the water-oil heat exchanger.

Filling Oil

Instructions and warnings for filling the machine with the correct type of oil.

Fitting the Coupling

Procedures for fitting the coupling between the motor and the pump.

Electrical Connection

General guidelines and safety for electrical connections.

Wiring Diagram for Three-Phase Motor

Provides wiring diagrams for connecting the three-phase motor.

Electrical Connection of Monitoring Devices

Details on connecting various monitoring devices and their wiring diagrams.

Commissioning

Commissioning Procedures and Safety

Outlines the steps for commissioning the machine, including safety precautions and operational checks.

Conveying Condensable Vapours

Describes the specific procedure for conveying condensable vapours with the machine.

Maintenance

General Maintenance Precautions

Highlights safety warnings and general procedures before performing maintenance tasks.

Maintenance Schedule and Intervals

Details the recommended maintenance schedule and intervals for various operating conditions.

Oil Level and Colour Inspection

Instructions for checking the oil level and inspecting the oil colour for contamination.

Oil and Oil Filter Change Procedures

Step-by-step guide for changing the machine's oil and oil filter.

Exhaust Filter Change

Instructions for replacing the exhaust filters (EF).

Air Heat Exchanger Cleaning

Procedure for cleaning the air heat exchanger.

Overhaul

Overhaul Procedures and Safety

Guidelines and safety precautions for machine overhaul and dismantling.

Decommissioning

Dismantling and Disposal Procedures

Steps for safely decommissioning, dismantling, and disposing of the machine.

Spare Parts

Spare Parts Information and Recommendations

Information on recommended spare parts kits and general advice on using genuine parts.

Troubleshooting

Troubleshooting Guide and Problem Resolution

A comprehensive guide to identify and resolve common problems with the vacuum pump.

Technical Data

Technical Specifications and Ratings

Detailed technical specifications, performance data, and operating parameters for the pump models.

Oil

Oil Specifications and Handling

Information on approved oil types, capacities, and handling precautions.

EU Declaration of Conformity

Declaration of Conformity and Standards

Official declaration of compliance with EU directives and relevant safety standards.