The performance of the hydraulic system is crucial to the efficiency and operation of heavy equipment. When the hydraulic system of the Hitachi EX35 excavator responds slowly, operators may experience reduced work efficiency and equipment failure. This article analyzes the possible causes of slow hydraulic response and offers common solutions.
Common Causes of Slow Hydraulics
- Low or Poor Quality Hydraulic Oil
One of the primary causes of slow hydraulic response is low hydraulic oil levels or poor-quality oil. If the oil level is too low, the system cannot generate sufficient pressure, causing the hydraulic functions to operate slowly. Additionally, if the oil is contaminated with water or debris, it can degrade the performance of the hydraulic system.
- Clogged Filters
Hydraulic filters play a critical role in cleaning the oil and preventing contaminants from entering the system. If the filters become clogged, it restricts the flow of oil, reducing the efficiency and responsiveness of the hydraulic system.
- Hydraulic Pump Failure
The hydraulic pump is the heart of the hydraulic system, responsible for generating hydraulic pressure. If the pump experiences issues such as internal wear, leaks, or malfunctions, the pressure and flow rate of the hydraulic system will be compromised, resulting in slower operation.
- Oil Leaks in the Hydraulic Lines
Leaks in the hydraulic lines lead to pressure loss, which in turn causes slow hydraulic functions. Leaks, especially in high-pressure areas, can significantly impact the system’s performance and need to be addressed promptly.
Solutions
- Check and Replace Hydraulic Oil
Regularly monitor the oil level and quality to ensure it is within the recommended range. If the oil is contaminated or degraded, it should be replaced. Using high-quality hydraulic oil will help prevent slow hydraulic system response.
- Clean or Replace Filters
If the filters are clogged, they should be cleaned or replaced. Regularly checking the condition of the filters and ensuring they are functioning properly will maintain the stability of the hydraulic system.
- Inspect the Hydraulic Pump
If a hydraulic pump failure is suspected, it should be thoroughly inspected to confirm whether its performance meets the required specifications. If necessary, replace any damaged pumps to restore the proper functioning of the hydraulic system.
- Fix Hydraulic Line Leaks
Regularly inspect the hydraulic lines, particularly at connection points, for any signs of leaks. Any leaks should be immediately repaired or replaced to maintain adequate pressure in the system.
Conclusion
Slow hydraulic response in the Hitachi EX35 excavator can be caused by a variety of factors. By performing regular maintenance, promptly checking the hydraulic oil, filters, pump, and lines, you can effectively prevent and address issues with slow hydraulics, ensuring the machine operates efficiently and lasts longer.
