Sany SY155U Hydraulic Excavator Repair Service Manual

Product Overview

This comprehensive repair service manual is designed for the Sany SY155U Hydraulic Excavator. It serves as an essential resource for maintaining and repairing this model, providing detailed information and schematics to assist technicians and engineers.

Excavator Model: SY155U

Documentation No.: B06T03ENAN1-SY155U

Language: English

Format: PDF

Key Features

• A comprehensive 588-page manual including electrical and hydraulic schematics.
• Detailed content sections covering various aspects of the excavator.
• Diagrams and tables to guide repairs and maintenance.

Benefits

• Facilitates accurate troubleshooting and repair with detailed schematics and specifications.
• Ensures technician safety by adhering to outlined shop safety guidelines.
• Helps maintain optimal equipment performance through standard value comparisons and testing recommendations.

Usage Recommendations

• Ideal for use in workshops performing repairs and maintenance on the Sany SY155U.
• Consult Sany distributors if specific attachments or optional parts are necessary and not included.
• Stay updated with material and specification changes which can occur without notice.

Table of Contents

• Introduction
• Shop Safety
• Specifications
• Structure and Functions
• Standard Values
• Testing and Adjusting
• Troubleshooting
• Disassembly and Assembly
• System Schematics

Manual Organization

This manual is methodically divided into sections to facilitate easy navigation and comprehension, focusing on different technical aspects of the Sany SY155U:

Introduction

Provides an overview of the manual contents and instructions on how to utilize this document effectively.

Shop Safety

Covers essential safety guidelines applicable to equipment maintenance, including explanations of hazard alerts featured throughout the manual.

Specifications

Details the technical specifications of the hydraulic excavator and its optional components, offering a reference point for ensuring precision during repairs.

Structure and Functions

Describes the construction and purpose of each component, aiding in a comprehensive understanding of the excavator and facilitating troubleshooting.

Standard Values

Presents benchmark values for new machinery, assisting in testing and adjusting procedures, and providing criteria for diagnosing parts during troubleshooting.

Testing and Adjusting

Covers pre- and post-repair inspections with detailed tips on making necessary adjustments. Includes a troubleshooting table for identifying faults and causes.

Troubleshooting

Offers guidance on detecting and repairing faulty components within the electrical, engine, hydraulic, mechanical, and monitoring systems.

Disassembly and Assembly

Provides detailed procedures and safety precautions for removing, disassembling, installing, and assembling all parts of the SY155U.

System Schematics

Contains both hydraulic and electrical circuit diagrams to support repair works and component understanding.