Buy HITACHI ZX EX120 200-5 TRACKING CONTROL VALVE PRESSURE SWITCH (AUTO IDLER SWITCH) | Tonkee®

The tracking control valve pressure switch is primarily responsible for monitoring the hydraulic pressure within the tracking control system of the Hitachi ZX/EX120-5 excavator.

This system is vital for controlling the movement of the excavator's tracks, allowing it to move forward, backward, and turn smoothly. The pressure switch serves as a critical safety feature by ensuring that the hydraulic pressure within the system remains within safe operating limits.

Design and Construction:

The pressure switch is a compact and ruggedly built component, designed to withstand the harsh operating conditions typically encountered in construction and excavation projects. It is engineered to be highly durable and resistant to environmental factors such as dust, dirt, and moisture. This ensures the switch's longevity and reliable performance, even in challenging work environments.

Operating Principle:

The pressure switch operates on a simple yet effective principle. It is installed within the hydraulic system, specifically within the tracking control circuit. When the excavator's tracking control system is engaged, hydraulic pressure is generated to control the movement of the tracks. The pressure switch continuously monitors this pressure. If the pressure exceeds or falls below a predetermined safe range, the switch activates.

Safety and Protection:

One of the primary functions of the tracking control valve pressure switch is to protect the excavator from potential damage and operator safety risks.

If the hydraulic pressure within the tracking control system deviates from the safe range, the pressure switch sends a signal to the excavator's control system. This signal can trigger several safety measures, including the automatic activation of the idler system to stop the tracks, preventing the excavator from moving uncontrollably. This is particularly crucial in situations where abrupt halts are necessary to prevent accidents or equipment damage.

Maintenance and Calibration:

Regular maintenance and calibration of the pressure switch are essential to ensure its accuracy and reliability. Maintenance routines typically include cleaning, inspection, and replacement if necessary. Calibration ensures that the switch accurately detects pressure changes and activates at the correct threshold, thereby maintaining the safety and efficiency of the excavator.

Compatibility and Replacement:

The Hitachi ZX/EX120-5 tracking control valve pressure switch is a proprietary component designed specifically for this series of excavators. When replacing this switch, it is imperative to use a genuine Hitachi replacement part to maintain the excavator's integrity and performance. Compatibility with other models or brands should be carefully assessed to avoid compatibility issues or compromise on safety.

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