Komatsu Main Regulator Valve Manual

Product Overview

The main regulator valve is a crucial component in hydraulic systems, designed to regulate and maintain optimal oil pressure within the circuit. It efficiently supplies pressurized oil to the clutch and the cut-off valve while delivering relieved oil to the torque converter and solenoid valve. This ensures smooth operation and safety of the machinery.

Table of Contents

• Engine
• Power Train
• Steering System
• Brake System
• Work Equipment System
• Electrical and Electronic System
• Others
• Structure and Functions
• Testing and Adjusting
• Disassembly and Assembly
• Maintenance Standard
• Others

Key Features

• Pressure Regulation: Maintains desired oil pressure to ensure system stability.
• Oil Supply: Efficiently supplies oil to the clutch and cut-off valve for optimal performance.
• Safety Relief Mechanism: Releases excess pressure, preventing system damage.

Benefits

• Enhanced Performance: By maintaining consistent oil pressure, this valve enhances the overall performance and efficiency of the machinery.
• Increased Safety: The relief mechanism prevents potential damage from overpressure, enhancing safety during operation.
• Reliability: Ensures reliable functioning of the torque converter and solenoid valve, contributing to overall system reliability.

Usage Recommendations

• Regular Maintenance: Conduct routine inspections to ensure the valve is functioning correctly and to prevent potential failures.
• Professional Adjustment: If adjustments are necessary, ensure they are performed by qualified technicians to maintain accuracy and safety.
• Monitor Oil Pressure: Continuously monitor oil pressure to quickly address any abnormalities.

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Operation Details

The manual outlines the details of the valve’s operation:

• The oil from the pump enters through orifice “a” and reaches the rear side of the regulator spool.
• Upon reaching preset pressure, the oil shifts the spool to the left, overcoming spring tension, and opens the torque converter circuit.
• Should the pressure exceed set limits, the spool further opens drain ports, allowing excess pressure to be relieved safely.