YD00000374 Original Excavator Filter Element for ZX33U-6

The part number YD0000374 is the original filter element provided by Hitachi for ultra small hydraulic excavators such as ZX33U-6. Its universal models usually cover 2.5-5-ton ultra small models in the ZX26U-6, ZX35U-6, ZX50U-6 and similar series. As the designated filter element of the original factory, its interface size and filtration accuracy are completely matched with the corresponding system. It is strictly prohibited to use non original parts to avoid system pollution, abnormal pressure, or component damage.

This product is a Hitachi pure filter cartridge, with a cylindrical main body made of high-strength filter paper. The surface is a grid like texture with reinforced structure, presenting a gray black color scheme. The upper and lower end covers are made of metal material to ensure structural stability and provide reliable sealing surfaces. The packaging box is a combination of silver gray and orange, with clear printed information. As an original component, its filtration accuracy, pollutant holding capacity, and burst pressure have been optimized for the system flow and pressure (usually working pressure ≤ 3MPa) of small machines such as ZX33U-6. The working temperature range is about -20 ℃ to+100 ℃, which can effectively intercept solid particle pollutants in the system and protect precision hydraulic or lubrication components.

Replacement cycle: It is recommended to replace it every 500 working hours or every 6 months, and the cycle should be appropriately shortened in dusty and harsh working conditions. Replacement steps: 1 Shutdown and release relevant system pressure; 2. Use specialized tools to disassemble the old filter element, and pay attention to collecting residual liquid with an oil pan; 3. Clean the sealing surface of the filter cartridge seat to ensure that there are no old sealing ring residues or impurities; 4. Apply a small amount of system working fluid on the sealing ring of the new filter element; 5. Manually screw the filter element into the base until the sealing ring contacts, then use a tool to tighten 3/4 turn (reference torque 15-25 N · m) to avoid excessive tightening. After installation, it is necessary to perform system exhaust operation and start checking for leaks.