LiuGong CLG9075E CLG908E Hydraulic Crawler Excavator Service Manual 2019 PDF

Description

File Details

• Manual Type: Service Manual
• Brand / Model: LiuGong CLG9075E, CLG908E
• Engine Models: YANMAR 4TNV98, YANMAR 4TNV98T (EU Stage IIIA/国三)
• Document Number: 201905001
• Publication Date: May 16, 2019
• Language: English
• Page Count: 978 pages
• File Format: PDF

Chapters Covered

• 1 Safety
• 2 Basics
• 3 Structural Function and Maintenance
• 4 Parameters
• 5 Testing and Adjusting
• 6 Fault Diagnosis
• 7 Disassembly and Assembly
• 8 Attached Drawing

1. Safety and 2. Basics

These opening chapters establish the essential groundwork for working on the CLG9075E and CLG908E. The safety section covers compressed air, high-pressure fluids, battery handling, and emergency measures. The Basics chapter provides a guide on how to navigate the manual, general torque specifications, unit conversions, cable identification methods, coating materials, a component weight table, and specifications for oil application. These sections are critical for ensuring safe practices and correct fastener tightening during any repair.

3. Structural Function and Maintenance

This extensive chapter details the major systems of the excavator. It covers the undercarriage (track frame, tensioner, idler, carrier roller, track roller, sprocket, and track), the hydraulic system (layout, main pump, main control valve, center joint, pilot valves, swing and travel motors, cylinders, and hydraulic tank), the work implement, the A/C system, and the electrical system. Within the electrical section, you will find descriptions of engine control, the display system, electrical control system functions (work mode, automatic idling, travel speed control), and various component descriptions.

4. Parameters

The Parameters chapter provides the fundamental technical data for the machines. It includes basic dimensions, performance parameters for the diesel engine, and complete machine performance parameters. You will find details on engine specifications, hydraulic system pressures, travel speeds, swing speeds, and working ranges, allowing you to verify machine performance against factory standards.

5. Testing and Adjusting

This chapter is dedicated to the verification and calibration of the machine’s performance. It includes procedures for measuring track idling speed, travel speed, travel deviation, swing speed, swing bearing clearance, cylinder action time, and cylinder settlement. It also covers the measurement of control lever operating force and stroke, pilot pressure, secondary pilot pressure, and the set pressure of the main relief valve. Additionally, you will find instructions for adjusting valve lash, measuring engine oil pressure, adjusting track tension, releasing residual hydraulic pressure, and exhausting air from various devices.

6. Fault Diagnosis

This crucial chapter provides systematic troubleshooting guidance. It starts with precautions and basic fault detection before maintenance. It categorizes faults into Diagnostic Trouble Codes (DTCs), electrical system faults (E1 to E20), and hydraulic/mechanical system faults (H1 to H17). Each fault is broken down with symptoms, possible causes, and step-by-step diagnostic procedures, helping technicians quickly identify and resolve issues with the excavator’s systems.

7. Disassembly and Assembly

This chapter offers detailed, step-by-step procedures for removing, disassembling, assembling, and installing major components. It covers the diesel engine assembly, fuel tank, radiator, cylinder head, undercarriage components, swing bearing, hydraulic oil tank, main control valve (both Inline and KYB versions), main pump (Kawasaki and Inline versions), travel and swing motors, cylinders, work implement (boom, arm, bucket, dozer), A/C components, and the cab. Each procedure includes specific tightening torques, required tools, and safety precautions.

8. Attached Drawing

The final section contains the hydraulic and electrical schematic diagrams. It includes the complete hydraulic schematic for the CLG9075E (Inline and KYB) and CLG908E, alongside the electrical schematic diagrams for the CLG908E and the A/C electrical schematic. These diagrams are indispensable for tracing circuits, understanding fluid flow, and diagnosing complex electrical or hydraulic faults.

Why This Manual is Essential for Your LiuGong Excavator

Owning the LiuGong CLG9075E CLG908E Hydraulic Crawler Excavator Service Manual is the most effective way to ensure your machine remains productive and safe. Whether you are performing routine maintenance, diagnosing a complex hydraulic issue, or undertaking a major engine overhaul, this manual provides the exact specifications, torque values, and step-by-step procedures required to do the job correctly. By following the manufacturer’s prescribed methods, you can reduce downtime, prevent costly mistakes, and extend the service life of your equipment. This comprehensive PDF covers all major systems and is an invaluable resource for any technician or owner-operator.

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This LiuGong CLG9075E CLG908E service manual is available for immediate download as a PDF file. No shipping fees, no waiting for a physical book. You can access the entire 978-page document on your computer, tablet, or smartphone, and print the pages you need for the workshop. Get your copy today and have the complete repair and diagnostic information for your excavator right at your fingertips.