07-09-2025, 11:23 PM
Hydraulic systems are the backbone of many heavy machinery operations, and maintaining their performance is crucial for efficient work. The TB 135 is no exception, and issues related to air in the hydraulic system can significantly affect its functionality. Here's a guide to understanding and addressing hydraulic system charging and bleeding air problems in the TB 135.
Understanding Hydraulic System Issues
A hydraulic system relies on pressurized fluid to transfer power within the system. Any air entering the system can disrupt this process, causing erratic movements, slow or weak performance, or even complete failure of hydraulic functions. Air can enter the system due to several reasons, such as low oil levels, leaks, or improper maintenance. It’s important to address these air issues as soon as they are detected.
Common Symptoms of Air in the Hydraulic System
If you suspect that air is trapped in the hydraulic system of your TB 135, it’s crucial to bleed the system properly to restore functionality.
1. Check Fluid Levels
Start by inspecting the hydraulic fluid levels in the reservoir. Low fluid levels can be a primary cause of air entering the system. Fill the reservoir to the recommended level with the proper hydraulic fluid as specified in the TB 135's manual.
2. Identify and Fix Leaks
Before bleeding the system, thoroughly check for any hydraulic fluid leaks. Leaks can draw in air and exacerbate the problem. If any leaks are found, repair them and ensure all fittings, hoses, and seals are tight.
3. Locate the Bleed Valve
The TB 135, like many other machines, will have a designated bleed valve for releasing trapped air. This valve is typically located near the hydraulic pump or at the top of the cylinder. Consult the user manual for its exact location.
4. Start the Engine
With the bleed valve accessible, start the engine of the TB 135. Engage the hydraulic controls to begin circulating the fluid. Keep the engine running at idle speed during this process to avoid damaging the hydraulic pump.
5. Open the Bleed Valve
Slowly open the bleed valve to release any trapped air. You will likely hear a hissing sound as air escapes. Once the air stops escaping and only hydraulic fluid begins to flow from the valve, you can proceed to close it.
6. Test the System
After closing the bleed valve, test the hydraulic system by operating the equipment. Move the hydraulic controls in different directions to check for smooth, consistent performance. The response should be quick and stable.
7. Repeat if Necessary
If the hydraulic system continues to behave erratically, repeat the process to ensure all air has been bled out of the system. Multiple attempts may be necessary in some cases, especially if the system had a significant amount of air.
Preventive Maintenance to Avoid Air in the Hydraulic System
Properly charging and bleeding the hydraulic system of the TB 135 is essential to maintaining smooth and efficient operation. By recognizing the symptoms of air in the system and following the steps outlined above, you can restore the functionality of your equipment and prevent costly repairs. Regular maintenance, such as checking fluid levels, inspecting hoses and seals, and using the correct hydraulic fluid, can help prevent air-related issues from occurring in the first place.
Understanding Hydraulic System Issues
A hydraulic system relies on pressurized fluid to transfer power within the system. Any air entering the system can disrupt this process, causing erratic movements, slow or weak performance, or even complete failure of hydraulic functions. Air can enter the system due to several reasons, such as low oil levels, leaks, or improper maintenance. It’s important to address these air issues as soon as they are detected.
Common Symptoms of Air in the Hydraulic System
- Erratic or Unstable Hydraulic Movements
One of the most common signs of air in the hydraulic system is jerky or uneven movements in the hydraulic components. The machine may hesitate or lurch before responding, or it may fail to respond to operator commands.
- Reduced Power or Performance
The hydraulic system may lack sufficient power to perform tasks, such as lifting or digging. This is often due to the inability of the system to build the required pressure when air is present.
- Spongy or Slow Response
If the hydraulic system feels spongy or the response to commands is slower than usual, it could be a sign that air has entered the system. This results in the hydraulic fluid not being able to flow correctly through the system.
- Visible Fluid Leaks
Another indicator that air may be present is the presence of leaks at various hydraulic joints, seals, or hoses. This is particularly important to monitor, as hydraulic leaks can lead to further system degradation.
If you suspect that air is trapped in the hydraulic system of your TB 135, it’s crucial to bleed the system properly to restore functionality.
1. Check Fluid Levels
Start by inspecting the hydraulic fluid levels in the reservoir. Low fluid levels can be a primary cause of air entering the system. Fill the reservoir to the recommended level with the proper hydraulic fluid as specified in the TB 135's manual.
2. Identify and Fix Leaks
Before bleeding the system, thoroughly check for any hydraulic fluid leaks. Leaks can draw in air and exacerbate the problem. If any leaks are found, repair them and ensure all fittings, hoses, and seals are tight.
3. Locate the Bleed Valve
The TB 135, like many other machines, will have a designated bleed valve for releasing trapped air. This valve is typically located near the hydraulic pump or at the top of the cylinder. Consult the user manual for its exact location.
4. Start the Engine
With the bleed valve accessible, start the engine of the TB 135. Engage the hydraulic controls to begin circulating the fluid. Keep the engine running at idle speed during this process to avoid damaging the hydraulic pump.
5. Open the Bleed Valve
Slowly open the bleed valve to release any trapped air. You will likely hear a hissing sound as air escapes. Once the air stops escaping and only hydraulic fluid begins to flow from the valve, you can proceed to close it.
6. Test the System
After closing the bleed valve, test the hydraulic system by operating the equipment. Move the hydraulic controls in different directions to check for smooth, consistent performance. The response should be quick and stable.
7. Repeat if Necessary
If the hydraulic system continues to behave erratically, repeat the process to ensure all air has been bled out of the system. Multiple attempts may be necessary in some cases, especially if the system had a significant amount of air.
Preventive Maintenance to Avoid Air in the Hydraulic System
- Regular Fluid Checks
Always monitor hydraulic fluid levels and ensure that they are within the recommended range. Low fluid levels can introduce air into the system, leading to performance issues.
- Inspect Seals and Hoses
Regularly inspect the hydraulic hoses and seals for signs of wear and tear. Replacing damaged or cracked hoses and seals can prevent air from entering the system and reduce the risk of leaks.
- Change Hydraulic Fluid Regularly
Over time, hydraulic fluid can become contaminated or lose its effectiveness. It’s important to follow the manufacturer’s recommended maintenance schedule for changing the fluid to ensure optimal performance.
- Use the Correct Fluid
Always use the correct hydraulic fluid as specified in the TB 135's user manual. The wrong type of fluid can lead to inefficient system operation and increased wear on components.
Properly charging and bleeding the hydraulic system of the TB 135 is essential to maintaining smooth and efficient operation. By recognizing the symptoms of air in the system and following the steps outlined above, you can restore the functionality of your equipment and prevent costly repairs. Regular maintenance, such as checking fluid levels, inspecting hoses and seals, and using the correct hydraulic fluid, can help prevent air-related issues from occurring in the first place.
