Yanmar ViO27-2, ViO35-2 (US) Excavator Service Manual

Description

• Model List:
  • ViO27-2, ViO35-2 (US) Excavator

• 1. FOREWORD
• 2. CONTENTS
• 3. CHAPTER 1 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. CHAPTER 2 TECHNICAL DATA
• 4.1. Specifications
• 4.2. Outline Drawing and Working Area
• 4.2.1. Canopy type
• 4.2.2. Cabin type
• 4.3. Weight List of Main Parts
• 4.4. Lifting Capacity List
• 5. CHAPTER 3 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
• 6. CHAPTER 4 ENGINE
• 6.1. Measurement, Inspection and Adjustment
• 6.1.1. Measuring the Compression Pressure
• 6.1.2. Adjusting the Valve Clearance
• 6.1.3. Checking the V-belt Tension
• 6.1.4. Checking the Fuel Injection Valve
• 6.1.5. Checking and adjusting the Fuel Injection Timing
• 6.1.6. Adjusting the Maximum (or Minimum) Idling Speed
• 6.1.7. Checking the Cooling Water System and Radiator for Water Leakage
• 6.1.8. Checking the Sensors
• 6.2. Measurement Procedure, Service Data and Corrective Action
• 6.2.1. Cylinder Head
• 6.2.2. Cylinder Block
• 6.2.3. Valve Rocker Arm
• 6.2.4. Piston and Piston Rings
• 6.2.5. Connecting Rod
• 6.2.6. Cam shaft
• 6.2.7. Crank shaft
• 6.2.8. Gears
• 6.2.9. Trochoid Pump
• 6.3. Precautions for Reassembly
• 6.4. Fuel Injection System
• 6.4.1. Fuel Injection Pump
• 6.4.2. Fuel Injection Valve
• 6.4.3. Governor Mechanism
• 6.4.4. Specifications of Fuel Injection Pump
• 6.5. Electrical Equipment
• 6.5.1. Starter Motor
• 6.5.2. Alternator
• 6.5.3. Air Heater
• 7. CHAPTER 5 HYDRAULIC SYSTEM
• 7.1. Outline
• 7.1.1. Control Valve Operation
• 7.1.2. Additional Operation of Control Valve
• 7.2. Hydraulic Circuit Schematic
• 7.2.1. Quick Coupler
• 7.2.2. W/O Quick Coupler
• 7.3. Circuit Operation
• 7.3.1. Boom
• 7.3.2. Arm
• 7.3.3. Bucket
• 7.3.4. Swing
• 7.3.5. Boom Swing
• 7.3.6. Blade
• 7.3.7. Travel
• 7.3.8. Non-Deviation Travel (with Boom, Arm, Bucket or Boom Swing Operation)
• 7.3.9. Simultaneous Operation of Boom Up and Arm Retract
• 7.3.10. Simultaneous Operation of Boom Up and Bucket
• 7.3.11. Simultaneous Operation of Arm and Bucket
• 7.3.12. Simultaneous Operation of Boom Up and Swing
• 7.3.13. Hydraulic P.T.O.
• 7.3.14. Quick Coupler
• 7.4. Pressure Adjustment
• 7.4.1. Relief Valves
• 7.4.2. Swing Brake Valve
• 7.4.3. Cut-Off Valve
• 8. CHAPTER 6 HYDRAULIC EQUIPMENT
• 8.1. Hydraulic Pump
• 8.1.1. ViO27-2
• 8.1.2. ViO35-2
• 8.2. Control Valve
• 8.3. Pilot Valve
• 8.4. Swing Motor
• 8.5. Travel Motor
• 8.5.1. ViO27-2
• 8.5.2. ViO35-2
• 8.6. Pilot Check Valve (Quick Coupler Type)
• 9. CHAPTER 7 ADJUSTMENT AND REPAIR
• 9.1. Electrical Equipment of Machine and Engine
• 9.1.1. Parts Layout of Electrical Equipment
• 9.1.2. Monitor and Alarm Systems
• 9.1.3. Wiring Diagram
• 9.1.4. Circuit Description of Engine Start and Stop, and Battery Charging
• 9.1.5. Removal and Reinstallation of Engine
• 9.1.6. Removal and Reassembly of Starter Motor
• 9.1.7. Removal and Reinstallation of Fuel Injection Pump
• 9.2. Undercarriage
• 9.2.1. Outline
• 9.2.2. Major Parts
• 9.2.3. Points of Reassembly (Rubber Crawler Models)
• 9.2.4. Points of Reassembly (Steel Crawler Models)
• 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. Control Train
• 9.3.2. Mechanical Control Linkage
• 9.3.3. Adjustment of Travel Levers
• 9.3.4. Adjustment of Boom Swing Pedal
• 9.3.5. Adjustment of Blade Control Lever
• 9.3.6. Adjustment of Lock Lever
• 9.3.7. Adjustment Procedure of Travel Alarm Switch
• 9.3.8. Adjustment Procedure of P.T.O. Pedal
• 9.3.9. Adjustment Procedure of P.T.O. Pedal Lock
• 9.3.10. Adjustment of Accelerator 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 Swing Motor
• 9.5.4. Removal and Reinstallation of Swivel Joint
• 9.5.5. Disassembly and Reassembly of Swivel Joint
• 9.5.6. Disassembly and Reassembly of Hydraulic Cylinders
• 9.5.7. Hydraulic Oil Tank
• 9.5.8. Piping Layout
• 9.6. Work Implements
• 9.6.1. Removal and Reinstallation of Work Implements
• 9.6.2. Quick Coupler
• 9.7. Cabin
• 9.7.1. Cabin
• 9.8. New Cabin
• 9.8.1. Cabin
• 10. CHAPTER 8 PERIODIC INSPECTION AND SERVICING
• 10.1. List of Periodic Inspection and Servicing
• 11. CHAPTER 9 FUEL, LUBE OIL AND GREASE RECOMMENDED
• 11.1. Fuel, Lube Oil and Grease Recommended
• 12. CHAPTER 10 TROUBLESHOOTING
• 12.1. Non-Breakdowns
• 12.1.1. Natural Release of Bucket
• 12.1.2. Discontinuous Arm Movement
• 12.1.3. Drifting of Upperstructure on Quick Travel Operation
• 12.1.4. Thermal Shock of Travel Motor
• 12.1.5. Elongation of Boom Swing Cylinder on 75 degrees Swing
• 12.1.6. Telescopic Motion of Boom Swing Cylinder with Lock Lever Set to Lock Position
• 12.1.7. Time Lag on Travel Speed Switching
• 12.1.8. Fluctuation in Oil Level of Hydraulic Oil Tank Due to Temperature Change
• 12.1.9. Operation of Quick Coupler Cylinder (for Quick Coupler Type)
• 12.2. Troubleshooting
• 12.2.1. Machine and Engine
• 12.2.2. Electrical Equipment on Panel
• 13. CHAPTER 11 REFERENCE DATA
• 13.1. Specifications for Attachment
• 14. SPINE TITLE