4354256 Original Excavator Shim for Hitachi ZX40

Part number 4354256 is a genuine gasket produced by Hitachi Construction Machinery in Japan. This component is a precision gasket used to adjust the gap between parts, and the universal model is the part number itself. It is mainly used for the Hitachi ZX40 ultra small excavator and may also be applicable to relevant parts of small models on the same platform (such as ZX35, ZX50) that require the same adjustment thickness. As an original precision adjustment component, its material, thickness, and hardness are perfectly matched with the clearance requirements of the equipment transmission or bearing parts

This product is a circular adjustment gasket made of metal material (usually steel). The main body is a light gray thin circular ring with a smooth surface and a precise circular hole in the center. Its core function is to precisely control the axial or radial clearance in parts such as gearboxes, drive axles, and rotary mechanisms. By replacing gaskets of different thicknesses, the meshing clearance of gears, the preload of bearings, or the axial position of components can be accurately adjusted to ensure smooth transmission, reduce noise, and extend component life. The original parts ensure minimal thickness tolerance, uniform hardness, and rust resistance.

Inspection and replacement: This type of gasket inspection and replacement is only required during major repairs, bearing or gear replacements of related components such as gearboxes and reducers. Timing of replacement: When the gasket shows corrosion, indentation, deformation, or when the thickness changes due to wear and tear, it must be replaced. Attention: After disassembly, the old gasket cannot be reused; Moisture and rust prevention are required during storage to avoid bending and deformation; It is strictly prohibited to compensate for gaps arbitrarily by increasing the number of gaskets.