Doosan DX170W Excavator Service Manual

Product Overview

The Doosan DX170W Excavator Service Manual is a comprehensive guide designed for the maintenance and repair of this rugged machine. Available in PDF format, this English-language manual is identified by Publication No: K1042891E and is applicable to serial numbers 5001 and up. With 1275 detailed pages, this manual is an essential resource for service professionals.

Key Features

• Comprehensive Coverage: Covers detailed servicing procedures with a focus on clarity and precision.
• Visual Aids: Features photographs and drawings to assist with component identification and procedural steps.
• Detailed System Schematics: Provides schematics and troubleshooting guides for major engine systems.
• Extensive Table of Contents: Easy access to necessary information through a well-organized table of contents.

Benefits

• Enhanced Safety: Includes detailed safety precautions to ensure the safe operation of the excavator.
• Efficient Troubleshooting: Helps in identifying and solving problems quickly, minimizing downtime.
• Improved Maintenance: Comprehensive maintenance guidelines extend the life of the excavator.

Usage Recommendations

• Follow Steps Carefully: Each service procedure is detailed in steps for accurate execution.
• Consult Safety Sections: Always refer to the safety sections before starting any maintenance work.
• Regular Use: Utilize the manual regularly to keep the machine in peak operating condition.

Content Overview

This manual includes sections on:

• Safety protocols specific to wheel excavators.
• Specifications and general maintenance procedures.
• Detailed instructions for upper structure, engine, drivetrain, hydraulics, electrical systems, and more.
• Attachments such as booms, arms, and buckets.

Detailed Function and Application: Brake Supply Valve Assembly

The brake supply valve assembly is crucial for preventing overload on the brake pump, thereby conserving energy. As engine RPM increases, so does the pressure and oil discharge from the brake pump. The valve package efficiently regulates these by redirecting excess fluid to reduce energy loss. Should system pressure exceed the set threshold, the unloading valve activates to bypass pressure, allowing the pump to remain unloaded. Conversely, if pressure falls below a set point, the system redirects pressure back to the control device.