OEM HITACHI EX225 ZERO TAIL BY PASS OIL FILTER | Tonkee®

The bypass oil filter in the Hitachi EX225 serves a critical role in maintaining the cleanliness and efficiency of the hydraulic system.

The hydraulic system is responsible for powering various functions of the excavator, including the movement of the boom, arm, bucket, and the rotation of the cabin. As such, the hydraulic oil must be free of contaminants to ensure optimal performance and longevity of the machine.

The bypass oil filter is designed to work in tandem with the primary hydraulic oil filter. While the primary filter captures larger particles, the bypass filter focuses on trapping smaller contaminants that may pass through the primary filter. This two-stage filtration system ensures that the hydraulic oil remains clean and free from impurities.

One of the key features of the Hitachi EX225's bypass oil filter is its bypass valve. This valve is calibrated to open when the pressure across the filter exceeds a certain threshold. When this happens, a small portion of the hydraulic oil is redirected through the bypass filter. This continuous flow of oil through the bypass filter ensures that even in cases of high contamination, the hydraulic system still receives filtered oil, preventing damage to sensitive components such as pumps, valves, and actuators.

The bypass filter itself consists of a high-efficiency filter element that is capable of capturing particles as small as a few microns in size.

This level of filtration is essential because even tiny particles can cause significant damage to hydraulic components over time. By removing these contaminants, the bypass filter contributes to the overall reliability and longevity of the excavator.

Maintenance of the bypass oil filter is straightforward but crucial. Regular inspection and replacement of the filter element are recommended as part of the excavator's routine maintenance schedule. The frequency of replacement may vary depending on the operating conditions and the level of contamination the excavator is exposed to. However, it is generally advised to follow the manufacturer's guidelines for filter replacement intervals.

In addition to its filtration capabilities, the bypass oil filter in the Hitachi EX225 is designed with durability and ease of service in mind. It is constructed from high-quality materials that can withstand the rigors of heavy-duty construction work. Additionally, the filter housing is designed for easy access, making filter replacement a relatively simple task for maintenance personnel.

Proper maintenance of the bypass oil filter not only ensures the longevity of the hydraulic system but also contributes to the overall efficiency of the Hitachi EX225 excavator. Clean hydraulic oil reduces friction and wear on components, resulting in smoother operation and improved fuel efficiency.

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