Load Sense Relief Valve Pressure Check

Product Overview

This guide provides detailed instructions for checking the pressure of the load sense relief valve on your machinery. It includes safety precautions, necessary tools, and step-by-step procedures to ensure accurate and reliable measurement.

Content Structure

• General Information
• Engine Details
• Fuel System Specifications
• Electrical Components
• Steering Mechanisms
• Power Train Insights
• Braking Systems
• Hydraulic System Overview
• Mounted Equipment Details
• Electrical Schematics
• Hydraulic Schematics

Pressure Check Instructions

1. Park the machine on a level surface. Position the backhoe in its transport state and lower the loader bucket to the floor.
2. Turn off the engine, activate the ignition switch and the pilot control switch. Use the pilot and loader controls to release any system pressure.
3. Attach a pressure gauge capable of measuring at least 345 bar (5000 psi) to the “M” port using adapter 101792A1 on the backhoe valve. Refer to page 16 for more details.
4. Ensure the oil reaches operational temperature. To heat the oil, follow these steps:
   • With the engine at full throttle, hold the loader control lever in the ROLLBACK position for 15 seconds.
   • Shift the loader control lever to the NEUTRAL position for another 15 seconds.
   • Repeat the above steps until the oil temperature reaches 125u00b0F (51u00b0C) or until the reservoir side feels warm.
5. Start and run the engine at high idle and apply a stabilizer over relief. Record the pressure reading.
6. Compare the obtained reading with the specifications outlined on page 3 of the manual.
7. Adjust the load sense relief valve if the pressure setting does not meet the specified requirements.

Usage Recommendations

• Always follow safety precautions while performing maintenance tasks to avoid accidents.
• Ensure all tools and equipment are in good condition before starting any procedures.
• Consult the detailed manual for more in-depth information on system specifications and troubleshooting tips.