Hydraulic System Common Noise Fault Treatment
Introduction
The noise of a hydraulic system is one of the most common problems facing any operator, regardless of experience. It is an issue that not only affects the performance of the system but also creates an unpleasant and distracting working environment for employees. Noise can be caused by a range of different faults and correct diagnosis and treatment are necessary to ensure the reliable and efficient operation of the system.
Fault Diagnosis
Diagnosing any fault of the hydraulic system is the first step in rectifying the noise problem. According to the sound of the noise, you can determine the type and approximate location of the fault. Unfortunately, since the sound and energy will dissipate in the system, it can be difficult to pinpoint the exact location of the noise. Instead, it is best to take a holistic view of the system and general diagnose the system as a whole to identify potential sources of the noise.
Types of faults
Noise can be caused by a range of different faults in the system, from worn components and incorrect settings to loose connections and deformed piping. Common faults that cause noise include:
• Worn components: wear and tear gradually causes components of the system to break down and metal parts to vibrate. This creates an audible noise that can be heard, even at low power inputs.
• Incorrect settings: incorrect pressure or flow settings can cause valves and actuators to either malfunction or generate noise when they are activated.
• Loose connections: Hydraulic connections that are loose or broken can cause pressure spikes, creating a loud banging noise.
• Deformed piping: Unsupported pipes or those that run too near to other components of the system can vibrate and create an audible noise. This can be an issue in systems that are installed in confined spaces, as heat and vibration will cause pipes to rub and wear on each other.
Treatment
Once the fault has been identified the next step is to find a solution to rectify the problem. Generally this involves replacing or repairing any worn or damaged components and ensuring that the system’s settings are correctly configured. Additionally, you may need to perform maintenance on the system in order to reduce any excess noise. Some of the treatments commonly used to reduce hydraulic system noise include:
• Replacing worn components: If any components of the system have become worn and are generating noise, they should be replaced. Keeping components in good condition will lead to improved performance and longevity of the system.
• Adjusting the settings: Ensuring that the settings of the system are correct can help to reduce the amount of vibration and noise generated when components are activated.
• Adding supports: Adding supports to pipes and other components that run at a longer length will help reduce the amount of vibration and therefore noise generated. This is especially true in systems installed in confined spaces as the vibrations will be amplified in smaller areas.
• Adding baffles and absorbers: Baffles and absorbers can be used to reduce the amount of vibration and noise within the system. These devices absorb the noise and convert it into heat, which is then dissipated through the system.
Conclusion
Noise from a hydraulic system can be a very distracting and unpleasant problem for any operator to deal with. It is important to identify the fault responsible for causing the noise and to diagnose the system in order to find the correct solution. There are a range of methods available to reduce the amount of noise produced by the system, from replacing worn components and adjusting the system settings to adding support and baffles and absorbers. By taking the necessary steps to reduce hydraulic system noise you will ensure your system operates reliably and efficiently and also maintain a pleasant working environment.
