0004307 Wire Harness for Hitachi Excavator ZX350H-3G ZX330

Transmitting power: The wiring harness is the main channel for power transmission, providing necessary power support for various systems of the machine, such as the engine, lighting, air conditioning, etc. Transmitting signals: The wiring harness can also transmit various signals, such as speed signals, temperature signals, oil pressure signals, etc., to provide necessary information feedback and control instructions for various systems of the machine. Control system: The wiring harness can also be used for control systems, such as braking systems, suspension systems, driving assistance systems, etc.

Wiring harness design is actually a design of the connection method that correctly connects the vehicle power supply through wires, fuses, relays, switches and control devices so that each electrical device can work normally.The role of the wiring harness in the vehicle is to transmit and exchange the power signal and data signal of the electrical system to realize the functions and requirements of the electrical system. It is used to connect various electrical equipment inside the machine, and can also connect external equipment such as sensors and controllers with the circuit system to realize data transmission and control wiring harness.

The wiring harness includes engine wiring harness, instrument wiring harness, cab wiring harness, main wiring harness and some small wire harnesses. The engine harness is a collection of wires that connect the various components and systems of the engine, responsible for transmitting power and signals, and connecting the engine control unit, sensors, and actuators. The instrument harness is a collection of wires that connect the instrument panel and the driver's control panel, responsible for transmitting various indicators, instruments, and control signals on the instrument panel. Main wiring harness - distributed in the chassis, engine compartment, and a small part in the cabin.The small wiring harnesses including: door wiring harness, bumper wiring harness, positive cable, and negative cable.