Why does my BUSCH RB 0021 C run very noisily?
If your BUSCH Water Pump runs very noisily, it could be due to defective bearings or stuck vanes, in which case you should contact Busch service to repair the vacuum pump. Another cause could be a worn coupling element, which you should replace.
What to do if my BUSCH RB 0021 C Water Pump is running too hot?
If your BUSCH Water Pump is running too hot, it may be due to insufficient cooling. Remove any dust and dirt from the machine. Also, check the cooling fan, top up the oil, and replace the exhaust filters (EF).
Why is my BUSCH Water Pump machine not reaching usual pressure?
If your BUSCH Water Pump isn't reaching the usual pressure, the oil level might be too low, so top up the oil. Also, clean the inlet screen (IS) and replace the inlet filter cartridge. If problems persist, contact Busch to repair the machine.
Why is my BUSCH RB 0021 C Water Pump fuming or expelling oil?
If your BUSCH Water Pump is fuming or expelling oil, the exhaust filters (EF) may be partially clogged, so replace them. Also, ensure the correct position of the exhaust filters (EF) and the o-rings. Check the float valve and the oil pipe for clogging and remove any blockages. Regularly shut down the machine for short periods.
How to fix a BUSCH Water Pump that does not start?
If your BUSCH Water Pump does not start, check the power supply. If that's not the issue, replace the motor or the coupling (CPL).
What to do if my BUSCH RB 0021 C does not reach the usual pressure?
If your BUSCH Water Pump is not reaching its usual pressure, there are a few possible causes. The oil level might be too low, so topping it up could solve the problem. Another common issue is a partially clogged inlet screen (IS), which requires cleaning. If your pump has an optional inlet filter cartridge, it might be clogged and need replacement. In case internal parts are damaged, repair of the machine is needed (contact Busch).
Why does a second phase settle on top of the operating fluid in my BUSCH Water Pump?
If a second phase settles on top of the operating fluid in your BUSCH Water Pump, it indicates contamination with water. Separate the water from the operating fluid and check the process to prevent recurrence.
Why is my BUSCH RB 0021 C Water Pump running too hot?
If your BUSCH Water Pump runs too hot, it might be due to several reasons. First, ensure sufficient cooling by removing any dust and dirt from the machine. Also, check that the ambient temperature is within the permitted range. Low oil level can also cause overheating, so top up the oil if necessary. Finally, clogged exhaust filters can be the culprit, so replace them to resolve the issue.
What causes a BUSCH RB 0021 C to be blocked?
If your BUSCH Water Pump is blocked, contact Busch service to repair the vacuum pump. Ensure the suction line has a screen and add a filter if necessary. Also, contact Busch service if corrosion from remaining condensate is the cause and check the process. For three-phase motors running in the wrong direction, contact Busch service to repair the pump and ensure correct direction upon connection. If underpressure or condensate caused the blockage after shutdown, contact Busch service to repair the pump and install a shut-off or non-return valve, or a drip leg with a drain cock, and drain condensate regularly.
What to do if BUSCH RB 0021 C does not start?
If your BUSCH Water Pump isn't starting, first ensure the drive motor is receiving the correct voltage. Check if the drive motor starter overload protection is appropriately set, adjusting if necessary, especially in high ambient temperatures. Inspect the fuses and replace any that have blown. If it's an alternating current motor version, contact Busch service to repair the drive motor capacitor if it's defective. Ensure the connection cable is adequately sized to prevent voltage drops. If the pump or motor is blocked, disconnect it from power, remove the fan cover, and try turning the motor by hand. If the pump is blocked, contact Busch service for repair. For a defective drive motor, contact Busch service to replace it.
General| Brand | BUSCH |
|---|---|
| Model | RB 0021 C |
| Category | Water Pump |
| Language | English |
Explains the meaning of DANGER, WARNING, CAUTION, NOTICE, and NOTE tags for hazard communication.
Identifies key components of the vacuum pump using labels and a diagram.
Clarifies terminology and notes potential variations in illustrations compared to the actual machine.
Describes the rotary vane mechanism, oil functions, and exhaust filters.
Details intended use, permitted gases, and operating time limits for different versions.
Describes optional accessories like gas ballast valve, inlet filter, and filter pressure gauge.
Advises on safe handling during transport, including warnings about suspended loads and tilting with oil.
Provides instructions for storing the machine, including sealing apertures and conditions for long-term storage.
Specifies environmental and space requirements for proper installation and operation, including ventilation and orientation.
Details requirements for suction and discharge connections, including stress-free joints and line sizing.
Advises on preventing foreign objects or liquids from entering the suction connection.
Covers discharge gas safety, ventilation, and preventing liquid backflow.
Provides step-by-step instructions for filling the machine with the correct type and amount of oil.
Outlines safety precautions and requirements for electrical connections, including qualified personnel and protective earth.
Shows the wiring diagram and color coding for single-phase motor connections.
Illustrates wiring diagrams for three-phase motors in Delta and Star connections.
Emphasizes filling with oil before commissioning and lists safety precautions regarding hot surfaces and noise.
Explains specific operation for versions with an oil return valve, including shutdown procedures.
Outlines the procedure for conveying condensable vapours, requiring agreement with Busch.
Covers safety warnings for contaminated machines, hot surfaces, cleaning, and general maintenance practices.
Presents a schedule for maintenance tasks based on normal and harsh operating conditions.
Details the procedure for checking the oil level using the sight glass and filling if necessary.
Provides instructions and warnings for changing the machine's oil.
Explains the procedure for replacing the exhaust filter, including necessary tools and parts.
Addresses decontamination requirements for machines that conveyed hazardous materials and recommends professional assembly.
Lists steps for shutting down, venting, and disconnecting lines before decommissioning.
Outlines procedures for draining oil, removing filters, and proper disposal of the machine and waste.
Lists essential spare part kits like service, gasket, and overhaul kits with their part numbers.
Provides a table listing common problems, their possible causes, and recommended remedies.
Continues the troubleshooting table, covering issues like overheating, fumes, oil consumption, and emulsified oil.
Lists technical specifications for RB 0021 C and RC 0021 C models, including pumping speed, pressure, and motor data.
Details recommended oil types (VM, VSA, VSB) and their packaging part numbers.
Lists applicable EU directives and standards under which the machine was manufactured.
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