Rear steering contactor for Terex ATT400-3

The rear steering contactor serves as an electrically controlled power switch within the steering system of the Terex ATT400-3 crane. It facilitates the connection and disconnection of the motors or actuators responsible for the rear wheel steering movements. By managing these electrical signals, the component enables the operator to engage various steering modes, such as crab steering or all-wheel steering, which are necessary for maneuvering the crane in restricted areas and achieving precise positioning on job sites.

This component is compatible with the Terex ATT400-3 model and carries part number A-65416-60. Contactors of this type are engineered to handle specific current capacities and operating voltages required by the crane's electrical architecture. They are built to endure frequent switching cycles associated with standard crane operations. When a contactor fails, the rear steering system may lose functionality, impacting the maneuverability and positioning capabilities of the machine.

In heavy equipment, contactors function as relays that allow a low-power control circuit to switch a higher-power circuit, such as those powering steering actuators or hydraulic pump motors. They provide the necessary isolation and control to ensure that steering inputs from the operator cabin are accurately translated into mechanical movement at the wheel axles.