3075265 Original Excavator Pin for Hitachi ZX800

The original pin part number 3075265 is a key connecting component of the working device of Hitachi ZX800 large excavator. It is mainly suitable for models such as ZX800, ZX800-3, ZX800-5, etc., and is used to connect bucket teeth with gear seats or track plates with chain rail joints. This universal number is its only original factory identification. When ordering, the complete model number of the excavator, the type of working device (such as backhoe or loading shovel), and the serial number must be provided to ensure that the size, material, and strength are completely matched.

This product is a high-strength alloy steel pin shaft, usually manufactured by forging or precision machining processes, and the surface is heat-treated (such as quenching) to improve hardness and wear resistance. If it is a bucket tooth pin, its diameter is usually in the range of 40-60 mm, and its length depends on the specifications of the bucket tooth. The surface may have anti loosening grooves or locking holes to install fixed snap springs or bolts. The tensile strength of the material is usually ≥ 1200 MPa, and the surface hardness can reach HRC 40-50, ensuring reliability under heavy excavation conditions.

Installation inspection: Clean the pin hole and apply an appropriate amount of lubricating grease before installation to ensure that the pin shaft can be smoothly installed. For the bucket tooth pin, it is necessary to use a special tool to press it in and install the locking spring or fixing bolt (torque according to the manual requirements, usually 200-400 N · m). Daily inspection: Check the pins for looseness, abnormal wear or cracks every 8-10 hours of work, especially the bucket teeth pins, which must be checked every time the bucket teeth are replaced. Lubrication and maintenance: For lubricated track pins, add lithium based grease through the oil nozzle every 250 hours of operation. Replacement timing: When the diameter wear of the pin exceeds 5% of the original size, obvious bending, cracking, or severe corrosion occurs, it must be replaced immediately. In harsh working conditions such as mines and gravel, it is recommended to conduct preventive inspections or replace critical connection pins every 1500-2000 working hours.