Yanmar ViO33-6, ViO38-6 Excavator Service Manual MMB32ENMA00101

Description

• Model List:
  • ViO33-6, ViO38-6 Excavator

• 1. FOREWORD
• 2. CONTENTS
• 3. General Cautions for Maintenance Work
• 3.1. Correct Work
• 3.2. Safety Precautions
• 3.3. Preparations
• 3.4. Cautions for Disassembly and Reassembly
• 3.5. Cautions for Removal and Installation of Hydraulic Equipment
• 3.6. Cautions for Removal and Installation of Hydraulic Piping
• 3.7. Cautions for Handling Seals
• 3.8. Correct Installation of Hydraulic Hose
• 3.9. Specifications of Hydraulic Hose
• 3.10. Air Release of Hydraulic Equipment
• 4. Technical Data
• 4.1. Specifications
• 4.2. Outline Drawing and Working Area
• 4.3. Weight List of Main Parts
• 4.4. Lifting Capacity List
• 4.5. Specifications for Attachment
• 4.6. Periodic Inspection and Servicing
• 4.7. Fuel, Lube Oil and Grease Recommended
• 4.8. Hydraulic Circuit Schematic
• 4.9. Wiring Diagram
• 5. Service Standards
• 5.1. Machine Performance
• 5.2. Engine
• 5.3. Undercarriage
• 5.3.1. Rubber Crawler Specifications
• 5.3.2. Steel Crawler Specifications
• 5.3.3. Common Specifications of Steel Rubber Crawlers
• 5.4. Controls
• 5.5. Hydraulic Equipment
• 5.5.1. Hydraulic Cylinders
• 5.6. Implement
• 5.6.1. Front Attachments
• 5.6.2. Blade Moving Device
• 5.6.3. Bucket Teeth
• 5.7. List of Tightening Torque
• 5.7.1. Machine
• 5.7.2. Engine
• 5.7.3. Tightening Torque for General Bolts and Nuts
• 5.7.4. Hydraulic Fitting
• 5.8. Pressure Adjustment
• 5.8.1. Relief Valves
• 5.8.2. Swing Brake Valve
• 5.8.3. Cut-Off Valve
• 6. Engine
• 6.1. Engine
• 6.1.1. Safety Precautions
• 6.1.2. Introduction
• 6.1.3. Special Service Tools
• 6.1.4. Measuring Instruments
• 6.1.5. Valve Cylinder Head
• 6.1.6. Measuring and Adjusting Valve Clearance
• 6.1.7. Crankshaft and Camshaft Components
• 6.2. Fuel System
• 6.2.1. Before You Begin Servicing
• 6.2.2. Introduction
• 6.2.3. Special Service Tools
• 6.2.4. Measuring Instruments
• 6.2.5. Fuel System Diagram
• 6.2.6. Fuel System Components
• 6.2.7. Fuel Injection Pump
• 6.2.8. Fuel Injectors
• 6.3. Cooling System
• 6.3.1. Before You Begin Servicing
• 6.3.2. Introduction
• 6.3.3. Cooling System Diagram
• 6.3.4. Engine Coolant Pump Components
• 6.3.5. Engine Coolant System Check
• 6.3.6. Engine Coolant Pump
• 6.4. Lubrication System
• 6.4.1. Before You Begin Servicing
• 6.4.2. Introduction
• 6.4.3. Lubrication System Diagram
• 6.4.4. Checking Engine Oil Pressure
• 6.4.5. Trochoid Oil Pump
• 6.5. Starter Motor
• 6.5.1. Before You Begin Servicing
• 6.5.2. Introduction
• 6.5.3. Starter Motor Specifications
• 6.5.4. Starter Motor Troubleshooting
• 6.5.5. Starter Motor Components
• 6.5.6. Starter Motor
• 6.6. Alternator
• 6.6.1. Before You Begin Servicing
• 6.6.2. Introduction
• 6.6.3. Alternator Specifications
• 6.6.4. Alternator Troubleshooting
• 6.6.5. Alternator Components
• 6.6.6. Alternator Wiring Diagram
• 6.6.7. Alternator Standard Output
• 6.6.8. Alternator
• 6.7. Electronic Control System
• 6.7.1. Engines available with the electronic control system
• 6.7.2. Before You Begin Servicing
• 6.7.3. Main Electronic Control Components and Features
• 6.8. Electric Wiring
• 6.8.1. Electric Wiring Precautions
• 6.9. Failure Diagnosis
• 6.9.1. Special Service Tools
• 6.9.2. Troubleshooting By Measuring Compression Pressure
• 7. Electric System
• 7.1. Electric Equipment of Machine
• 7.1.1. Parts Layout of Electrical Equipment
• 7.1.2. LCD Monitor and Alarm Systems
• 7.2. Electronic Control System
• 7.2.1. Start/Stop Control
• 7.2.2. Circuit Description of Engine Start, Stop and Battery Charging
• 7.3. Engine ECU (engine controller)
• 7.3.1. Engine ECU
• 7.3.2. Circuit Description of Auto Deceleration Mode
• 7.3.3. Circuit Description of Eco Mode
• 7.3.4. Engine Speed and Output Control
• 7.4. Hydraulic ECU (Controller)
• 7.5. Error Code List
• 8. Hydraulic System
• 8.1. Outline
• 8.1.1. Control Valve Operation
• 8.1.2. Additional Operation of Control Valve
• 8.2. Circuit Operation
• 8.2.1. Boom
• 8.2.2. Arm
• 8.2.3. Bucket
• 8.2.4. Swing
• 8.2.5. Boom Swing
• 8.2.6. Blade
• 8.2.7. Travel
• 8.2.8. Non-Deviation Travel (with Boom, Arm or Boom Swing Operation)
• 8.2.9. Non-Deviation Travel (with Bucket Operation)
• 8.2.10. Simultaneous Operation of Boom Up and Arm Retract
• 8.2.11. Simultaneous Operation of Boom Up and Bucket
• 8.2.12. Simultaneous Operation of Boom Up and Swing
• 8.2.13. Simultaneous Operation of Arm and Bucket
• 8.2.14. Hydraulic P.T.O.
• 8.2.15. Travel Alarm
• 8.2.16. Auto Deceleration
• 8.3. Hydraulic Pump
• 8.3.1. ViO33-6
• 8.3.2. ViO38-6
• 8.4. Control Valve
• 8.5. Pilot Valve
• 8.5.1. Remote Control Valve
• 8.6. Swing Motor
• 8.7. Travel motor
• 8.8. Proportional Solenoid Valve (for P.T.O.)
• 8.9. ESS Proportional Solenoid Valve (ViO38-6 only)
• 9. Adjustment and Repair
• 9.1. Engine and Electric Equipment
• 9.1.1. Removal and Reinstallation of Engine
• 9.1.2. Removal and Reinstallation of Starter Motor
• 9.1.3. Removal and Reinstallation of Radiator and Oil Cooler
• 9.1.4. Removal and Reinstallation of Fan Belt and Compressor Driving Belt
• 9.1.5. Removal and Reinstallation of Engine ECU
• 9.1.6. Removal and Reinstallation of Hydraulic ECU (Air conditioner spec.)
• 9.2. Undercarriage
• 9.2.1. Outline
• 9.2.2. Main Parts
• 9.2.3. Points of Reassembly (Rubber Track)
• 9.2.4. Points of Reassembly (Steel Track)
• 9.2.5. Removal and Reinstallation of Crawler
• 9.2.6. Removal and Reinstallation of Travel Motor
• 9.2.7. Disassembly and Reassembly of Idler
• 9.2.8. Disassembly and Reassembly of Track Roller
• 9.2.9. Disassembly and Reassembly of Carrier Roller
• 9.2.10. Installation of Floating Seal
• 9.2.11. Drawings of Jigs
• 9.3. Controls
• 9.3.1. Mechanical Control Linkage
• 9.3.2. Adjustment of Travel Levers
• 9.3.3. Adjustment of Boom Swing Pedal
• 9.3.4. Adjustment of Blade Lever
• 9.3.5. Adjustment of Lock Lever
• 9.4. Swing Bearing
• 9.5. Hydraulic Equipment
• 9.5.1. Removal and Reinstallation of Hydraulic Pump
• 9.5.2. Removal and Reinstallation of Control Valve
• 9.5.3. Removal and Reinstallation of Pilot Valves (L and R)
• 9.5.4. Removal and Reinstallation of Swing Motor
• 9.5.5. Removal and Reinstallation of Swivel Joint
• 9.5.6. Disassembly and Reassembly of Swivel Joint
• 9.5.7. Disassembly and Reassembly of Hydraulic Cylinder
• 9.5.8. Removal and Reinstallation of Hydraulic Oil Tank
• 9.5.9. Piping Layout
• 9.6. Work Implements
• 9.6.1. Removal and Reinstallation of Work Implements
• 9.7. Cabin
• 9.7.1. Removal and Reinstallation of Cabin
• 9.7.2. Disassembly and Reassembly of Cabin
• 9.8. Air Conditioner
• 9.8.1. Removal and Reinstallation of Air Conditioner
• 10. Troubleshooting
• 10.1. Non-Breakdowns
• 10.1.1. Natural Release of Bucket
• 10.1.2. Discontinuous Arm Movement
• 10.1.3. Drifting of Upperstructure on Quick Travel Operation
• 10.1.4. Thermal Shock of Travel Motor
• 10.1.5. Elongation of Boom Swing Cylinder on 65 degrees Swing
• 10.1.6. Telescopic Motion of Boom Swing Cylinder with Lock Lever Set to Lock Position
• 10.1.7. Time Lag on Travel Speed Switching
• 10.1.8. Fluctuation in Oil Level of Hydraulic Oil Tank Due to Temperature Change
• 10.2. Quick Reference Table for Troubleshooting
• 11. APPENDIX
• 11.1. ViO33-6 ViO38-6 Wiring Diagram (Applicable S/N ViO33-6 60501 to 60600, ViO38-6 60501 to 60565)
• 11.2. ViO33-6 ViO38-6 Wiring Diagram (Applicable S/N ViO33-660601 and above, ViO38-6 60566 and above)