2055346 Original Loader oil Suction Filter Element for ZW220

Part number 2055346 is an original oil suction filter produced by Hitachi Construction Machinery Co., Ltd. in Japan. Usually installed inside the hydraulic oil tank, located at the front end of the suction pipe inlet of the hydraulic pump, it is the first key filtering barrier to protect the hydraulic pump. Its universal models usually cover wheel loaders of the ZW220, ZW250, ZW330 series, as these models often use the same or similar hydraulic oil tank and pump design. The "5U6107ZS4G2HEV2" on the packaging box in the picture is the production traceability code. To ensure that everything is foolproof, it is strongly recommended that you verify the final compatibility with Hitachi authorized dealers through the device body serial number before installation.

This product is a Hitachi pure metal wire mesh oil absorbing filter cartridge, with a cylindrical body and a gray stainless steel or special alloy wire woven mesh filter material. It adopts a precise pleated design to maximize the filtration area. Both ends are sturdy metal end caps, ensuring the structural integrity of the filter element under negative system pressure and providing a reliable installation and sealing surface. The top is integrated with an oil resistant rubber sealing ring to ensure absolute sealing with the installation seat inside the fuel tank, preventing air from being sucked in. Its main technical parameters are: filtration accuracy is usually 100-150 microns, used to intercept larger metal debris, seal fragments and other pollutants in oil; The working state is negative pressure (oil suction condition); The pressure resistance capacity is about 0.1-0.2 MPa; Can withstand long-term immersion in hydraulic oil, with a working temperature range of approximately -20 ℃ to+100 ℃.

Replacement cycle: It is recommended to check the hydraulic oil for the first time (about 1000 working hours), and then replace it every 2000 working hours or annually thereafter. Under dusty and heavy load conditions, the cycle should be appropriately shortened. Replacement steps: 1 Stop the machine and release the hydraulic system pressure, operate the control lever to relieve residual pressure. 2. Open the hydraulic oil tank filler cap. 3. Remove the cover plate or inspection hole cover that installs the filter element on the fuel tank. 4. Carefully remove the old filter element and be careful not to let impurities fall into the fuel tank. 5. Thoroughly clean the installation chamber and sealing surface of the filter element. 6. Soak the new filter element slightly in clean hydraulic oil and accurately place it into the installation seat to ensure that the sealing ring is fully seated and fits smoothly. 7. Reinstall the cover plate and tighten the bolts in diagonal order and specified torque. 8. Add hydraulic oil to the specified level, start the engine and run it at low speed, carefully monitor the hydraulic pump for any abnormal noise (cavitation sound), and check for leaks in all interfaces.