8064364 Original Excavator Bracket for ZX200-3G

The original bracket part number 8064364 is a key structural component on the Hitachi ZX200-3G medium-sized hydraulic excavator. It is mainly suitable for the -3G series models such as ZX200-3G, ZX200LC-3G, ZX210H-3G, etc. It is usually used for the installation and support of engines, hydraulic pumps or working devices, playing a role in fixing, damping and bearing. This universal number is its only original factory identification. When ordering, the complete model, serial number, and installation location information of the equipment must be provided to ensure that the size, hole position, and strength are completely matched.

This product belongs to high-strength structural steel brackets, usually made of Q345B or similar grade steel through welding or casting processes. The surface is sandblasted for rust removal and coated with anti rust primer and topcoat treatment. The structural design should fully consider the vibration, impact, and alternating loads during excavator operation, with a reasonable layout of reinforcement bars and sufficient installation planes to ensure long-term stable operation under the 110kW engine power and 34.3MPa hydraulic system pressure of ZX200-3G. The key installation holes have high precision and are usually fixed with high-strength bolts of grade 8.8 or 10.9.

Installation inspection: Clean the contact surface before installation to ensure no oil stains or rust. Use a torque wrench to tighten the fixing bolts according to the maintenance manual requirements (usually ≥ 200 N · m, specific values should refer to the manual). Regular inspection: Check all fixing bolts of the bracket for looseness every 250 hours of operation, and inspect the bracket body for cracks, open welds, or obvious deformation. Cleaning and rust prevention: Regularly remove the accumulated soil and oil stains on the bracket, check whether the paint surface is intact, and if there is any damage, timely touch up the paint to prevent rust. Timing of replacement: When the bracket experiences severe deformation (affecting installation alignment), cracks (especially at welds), or corrosion resulting in a significant reduction in wall thickness, it must be replaced immediately. It is recommended to conduct preventive inspections on key supports every 3000-5000 working hours under heavy load conditions such as mining and crushing.