Yanmar ViO75-A Excavator Service Manual

Description

• Model List:
  • ViO75-A Excavator

• 1. SPINE TITLE
• 2. FOREWORD
• 3. CONTENTS
• 4. General Cautions for Maintenance Work
• 4.1. Correct Work
• 4.2. Safety Precautions
• 4.3. Preparations
• 4.4. Cautions for Disassembly and Reassembly
• 4.5. Cautions for Removal and Installation of Hydraulic Equipment
• 4.6. Cautions for Removal and Installation of Hydraulic Piping
• 4.7. Cautions for Handling Seals
• 4.8. Correct Installation of Hydraulic Hose
• 4.9. Specifications of Hydraulic Hose
• 4.10. Air Release of Hydraulic Equipment
• 5. Technical Data
• 5.1. Specifications
• 5.2. Outline Drawing and Working Area
• 5.2.1. Cabin Type
• 5.3. Weight List of Main Parts
• 5.4. Lifting Capacity List
• 6. Service Standards
• 6.1. Machine Performance
• 6.2. Engine
• 6.3. Undercarriage
• 6.3.1. Rubber Crawler Specifications
• 6.3.2. Steel Crawler Specifications
• 6.3.3. Common Specifications of Steel Rubber Crawlers
• 6.4. Controls
• 6.5. Hydraulic Equipment
• 6.5.1. Hydraulic Cylinders
• 6.6. Implement
• 6.6.1. Front Attachments
• 6.6.2. Blade Moving Device
• 6.6.3. Bucket Teeth
• 6.7. List of Tightening Torque
• 6.7.1. Machine
• 6.7.2. Engine
• 6.7.3. Tightening Torque for General Bolts and Nuts
• 7. Engine
• 7.1. General
• 7.1.1. How to Read This Manual
• 7.1.2. Precautions for Service Work
• 7.1.3. Engine External Views
• 7.1.4. Structural Description
• 7.1.5. Exhaust Gas Emission Regulation
• 7.2. Troubleshooting
• 7.2.1. Quick Reference Table for Troubleshooting
• 7.2.2. Troubleshooting by Measuring Compression Pressure
• 7.3. Inspection and Adjustment
• 7.3.1. Oil Inspection
• 7.3.2. Cooling Water Inspection
• 7.3.3. Inspecting Water Leak from Cooling Water System and Radiator
• 7.3.4. Fan Belt Tension Inspection and Adjustment
• 7.3.5. Adjusting the Valve Clearance
• 7.3.6. Inspecting the Fuel Injection Valve Injection Pressure and Spray Pattern
• 7.3.7. Fuel Injection Timing Adjustment / Fuel Injection Pump Inspection and Adjustment
• 7.3.8. Sensor Inspection
• 7.3.9. Battery Inspection
• 7.3.10. Adjusting Operation
• 7.3.11. Long Storage
• 7.3.12. Periodic Maintenance Schedule
• 7.4. Engine Body
• 7.4.1. Introduction
• 7.4.2. Cylinder Head
• 7.5. Lubrication System
• 7.5.1. Lubrication System Diagram
• 7.5.2. Trochoid Pump Components
• 7.5.3. Disassembly (Reverse the Procedure Below for Assembly)
• 7.5.4. Servicing Points
• 7.6. Cooling System
• 7.6.1. Cooling Water System
• 7.6.2. Cooling Water Pump Components
• 7.6.3. Disassembly (Reverse the Procedure Below for Assembly)
• 7.6.4. Servicing Points
• 7.7. Fuel Injection Pump / Governor
• 7.7.1. Introduction
• 7.7.2. Fuel Injection Pump
• 7.8. Starting motor
• 7.8.1. Specifications
• 7.8.2. Components
• 7.8.3. Troubleshooting
• 7.9. Alternator
• 7.9.1. Components
• 7.9.2. Specifications
• 7.9.3. Wiring diagram
• 7.9.4. Standard output characteristics
• 7.9.5. Troubleshooting
• 7.10. Air Heater
• 8. Hydraulic System
• 8.1. Outline
• 8.1.1. Control Valve Operation
• 8.1.2. Additional Operation of Control Valve
• 8.2. Hydraulic Circuit Schematic
• 8.2.1. For Standard Type Machines
• 8.3. Circuit Operation
• 8.3.1. Boom
• 8.3.2. Arm
• 8.3.3. Bucket
• 8.3.4. Swing
• 8.3.5. Boom Swing
• 8.3.6. Blade
• 8.3.7. Travel
• 8.3.8. Non-deviation Travel (with Boom, Arm, Bucket or Boom Swing Operation)
• 8.3.9. Simultaneous Operation of Boom Up and Arm Retract
• 8.3.10. Simultaneous Operation of Boom Up and Bucket
• 8.3.11. Simultaneous Operation of Boom Up and Swing
• 8.3.12. Simultaneous Operation of Arm and Bucket
• 8.3.13. Hydraulic P.T.O.
• 8.3.14. Travel Alarm
• 8.3.15. h P.T.O.
• 8.3.16. Quick Coupler
• 8.4. Pressure Adjustment
• 8.4.1. Relief Valves
• 8.4.2. Swing Brake Valve
• 8.4.3. Cut-off Valve
• 9. Hydraulic Equipment
• 9.1. Hydraulic Pump
• 9.2. Control Valve
• 9.3. Pilot Valve
• 9.4. Swing Motor
• 9.5. Travel Motor
• 9.5.1. Product Overview
• 9.5.2. Model Labeling
• 9.5.3. External Dimensions
• 9.5.4. Basic Configuration and Drawing
• 9.5.5. Operating Description
• 9.5.6. Precautions for Use
• 9.5.7. Maintenance and Inspection
• 9.5.8. Troubleshooting
• 9.5.9. GM Motor Storage
• 9.5.10. Disposal
• 9.5.11. Service Outline
• 9.5.12. Disassembly
• 9.5.13. Service Preparations
• 9.5.14. Assembly
• 9.5.15. Performance Congirmation Test
• 9.5.16. Clearance Adjustment Parts Dimensions Table
• 9.6. Pilot Check Valve
• 10. Adjustment and Repair
• 10.1. Electric Equipment of the Machine
• 10.1.1. Parts Layout of Electrical Equipment
• 10.1.2. Monitor and Alarm Systems
• 10.1.3. Wiring Diagram
• 10.1.4. Stop Motor Operation
• 10.1.5. Removal and Reinstallation of Engine
• 10.1.6. Removal and Reinstallation of Starter Motor
• 10.1.7. Removal and Reinstallation of Radiator
• 10.1.8. Removal and Reinstallation of Fan Belt and Compressor Driving Belt
• 10.1.9. Removal and Reinstallation of Fuel Injection Pump
• 10.2. Undercarriage
• 10.2.1. Outline
• 10.2.2. Compatibility of Main Parts
• 10.2.3. Points of Reassembly (Rubber Crawler Type)
• 10.2.4. Points of Reassembly (Steel Crawler Type)
• 10.2.5. Removal and Reinstallation of Crawler
• 10.2.6. Disassembly and Reassembly of Steel Crawler
• 10.2.7. Disassembly and Reassembly of Front Idler
• 10.2.8. Disassembly and Reassembly of Track Roller
• 10.2.9. Installation of Floating Seal
• 10.2.10. Drawings of Jigs
• 10.2.11. Disassembly and Reassembly of Carrier Roller
• 10.3. Controls
• 10.3.1. Control Train
• 10.3.2. Mechanical Control Linkage
• 10.3.3. Adjustment of Travel Levers
• 10.3.4. Adjustment of Boom Swing Pedal
• 10.3.5. Adjustment of Blade Lever
• 10.3.6. Adjustment of Lock Lever
• 10.3.7. Adjustment Procedure of P.T.O. Pedal
• 10.3.8. Adjustment Procedure of P.T.O. Pedal Lock
• 10.3.9. Adjustment of Accelerator Lever
• 10.4. Swing Bearing
• 10.4.1. Removal and Reinstallation of Swing Bearing
• 10.5. Hydraulic Equipment
• 10.5.1. Removal and Reinstallation of Hydraulic Pump
• 10.5.2. Removal and Reinstallation of Control Valve
• 10.5.3. Removal and Reinstallation of Swing Motor
• 10.5.4. Removal and Reinstallation of Swivel Joint
• 10.5.5. Disassembly and Reassembly of Swivel Joint
• 10.5.6. Disassembly and Reassembly of Hydraulic Cylinders
• 10.5.7. Hydraulic Oil Tank
• 10.5.8. Piping Layout
• 10.6. Implement
• 10.6.1. Removal and Reinstallation of Implement
• 10.6.2. Quick Coupler
• 10.7. Cabin
• 10.7.1. Cabin
• 10.8. Air Conditioner
• 10.8.1. Removal and Reinstallation of Air Conditioner
• 11. Periodic Inspection and Servicing
• 11.1. List of Periodic Inspection and Servicing
• 12. Fuel, Lube Oil and Grease Recommended
• 13. Troubleshooting
• 13.1. Non-breakdowns
• 13.1.1. Natural Release of Bucket
• 13.1.2. Discontinuous Arm Movement
• 13.1.3. Thermal Shock of Travel Motor
• 13.1.4. Elongation of Boom Swing Cylinder on 68 degrees Swing
• 13.1.5. Time Lag on Travel Speed Switching
• 13.1.6. Fluctuation in Oil Level of Hydraulic Oil Tank due to Temperature Change
• 13.2. Troubleshooting
• 13.2.1. Machine and Engine
• 13.2.2. Electrical Equipment on Panel
• 14. Reference Data
• 14.1. Specifications for Attachment
• 15. COLOPHON