Airman Excavator Fluid Issues: Analysis and Solutions

[MikePhua]

Airman excavators are widely used in various industries due to their reliability and durability. As heavy machinery, the fluid system plays a critical role in their proper functioning. Correct usage and maintenance of fluids are essential to ensuring the long-term efficient operation of the equipment. Recently, some users have reported fluid-related issues with Airman excavators. This article explores common fluid problems and their solutions, helping operators better manage and maintain their fluid systems to avoid potential failures.
Problem Description
Many Airman excavator operators have reported abnormal phenomena occurring in the fluid systems during operation. These issues may include fluid leaks, fluid contamination, or insufficient hydraulic system pressure. Since fluid issues directly affect the performance of the excavator, identifying and resolving these problems promptly is crucial.
Common Fluid Problems Analysis

1. Fluid Leaks
   Fluid leaks are one of the most common issues in excavators. Leaks typically occur in hydraulic pipes, seals, and joints. Prolonged use, wear and tear, and environmental factors can lead to leakage. If left unresolved, fluid leaks can result in reduced hydraulic system pressure, impacting the machine’s efficiency and safety.
   
2. Fluid Contamination
   Fluid contamination is another frequent issue, often caused by external debris entering the hydraulic system or by not replacing the fluid in time. Contaminated fluid can lead to increased wear on hydraulic components, unstable system pressure, and even failure of hydraulic pumps and motors.
   
3. Excessive Hydraulic Oil Temperature
   High hydraulic oil temperature is typically caused by system overload, cooling system failure, or improper oil selection. High temperatures can degrade the performance of the fluid, increasing wear on components, and in severe cases, may cause the machine to shut down.
   
4. Insufficient Hydraulic System Pressure
   Insufficient hydraulic pressure can be caused by low fluid levels, faulty hydraulic pumps, or clogged system pipes. Low pressure results in slow equipment operation, reduced work efficiency, and may even prevent the machine from performing certain tasks.
   

Solutions

1. Check and Repair Fluid Leaks
   If a fluid leak occurs, operators should first identify the source of the leak by inspecting the hydraulic pipes, joints, and seals. Replace damaged seals and pipes to ensure the system is sealed properly. Regular inspection and cleaning of hydraulic systems can help prevent leaks.
   
2. Regularly Change Fluid and Prevent Contamination
   Regularly changing the hydraulic fluid is key to maintaining the hydraulic system's efficiency. Follow the manufacturer’s recommended fluid change intervals and ensure that the correct type of fluid is used. It’s also important to clean the hydraulic system’s filters regularly to prevent contaminants from entering the fluid system.
   
3. Improve Cooling System
   If hydraulic oil temperature is too high, inspect the cooling system to ensure it is functioning correctly. Check that the cooler is not clogged and that the coolant is circulating properly. Clean the cooling system as needed and replace the coolant. Additionally, avoid operating the machine under heavy loads for prolonged periods, as this can lead to overheating.
   
4. Check Hydraulic System Pressure Settings
   If hydraulic system pressure is low, operators should check the fluid levels to ensure they are adequate. Further inspection of the hydraulic pump, filters, and pipes should be conducted to identify any blockages or faulty components. Maintenance or replacement of the hydraulic pump can help restore normal pressure levels.
   

Conclusion
Fluid-related issues in Airman excavators are significant and should not be overlooked. By performing regular checks, proper maintenance, and correct fluid usage, operators can effectively prevent fluid-related failures and ensure the machine’s efficient operation. Regular fluid changes, inspecting for leaks, optimizing the cooling system, and ensuring correct hydraulic pressure can significantly extend the life of the equipment and improve work efficiency.