4311126020 Loader air Hose for ZW310-5A

Hitachi original loader air hose (part number: 4311126020) is a key pipeline component used to transport compressed air, mainly connected between the air compressor, air storage tank, and pneumatic tools (such as brake systems, wipers, etc.). According to the accessory supplier information, this part number is clearly applicable to the Hitachi ZW310-5A wheel loader. As an original accessory, its design fully matches the interface specifications and spatial layout of the host air system. Before purchasing, it is strongly recommended that you verify the specific model on the equipment nameplate (such as ZW310-5A) and the physical old parts, as the same part number may have slight differences due to production batches or design adjustments.

This air hose is designed specifically for high pressure, pulse, and harsh working conditions in construction machinery. Its typical structure is multi-layer composite: the inner layer is made of oil resistant and aging resistant synthetic rubber (such as nitrile rubber NBR or EPDM) to ensure compatibility with compressed air; The reinforcement layer is woven with high-strength polyester fibers or steel wires, providing excellent tensile strength and blast resistance; The outer layer is covered with wear-resistant and weather resistant rubber or polyurethane (PU) to resist ultraviolet rays, ozone, and physical scratches. As an original component, its working pressure usually complies with national standards (such as GB/T 1186), reaching 1.0-2.5 MPa, with a high safety factor for burst pressure. The temperature adaptation range is wide, generally between -40 ° C and+100 ° C, and can adapt to cold and hot environments. The joint form is standard quick change joint or flange connection, ensuring reliable sealing and easy installation.

The maintenance core of this air hose lies in regular inspection, correct installation, and preventive replacement. Regular inspection: It is recommended to visually inspect the appearance of the hose every 250 working hours or weekly, with a focus on checking for cracks, bulges, cuts, hardening, abnormal expansion, or leakage at the joints. You can apply soapy water to the suspected leak area and observe if bubbles are generated. Installation specifications: When replacing, ensure that the hose length is appropriate, and maintain a natural curvature during installation to avoid twisting, excessive bending (bending radius not less than the manufacturer's specified value), or contact friction with sharp parts or high-temperature surfaces. The connecting joints should be tightened according to the torque requirements and suitable clamps or gaskets should be used.