Yanmar 2TNV70, 3TNV70, 3TNV76 Industrial Engines Service Manual M9961-02E070

Description

• Model List:
  • 2TNV70, 3TNV70, 3TNV76 Industrial Engines

• 1. PREFACE
• 2. SAFETY LABELS
• 3. Safety Precautions
• 4. Precautions for Service Work
• 5. CONTENTS
• 6. General
• 6.1. Engine Nomenclature
• 6.2. Specifications
• 6.3. Fuel Oil, Lubricating Oil and Cooling water
• 6.3.1. Fuel oil
• 6.3.2. Lubricating oil
• 6.3.3. Cooling water
• 6.4. Engine External Views
• 6.5. Structural Description
• 6.6. Exhaust gas emission regulation
• 6.6.1. The Emission Standard in USA
• 6.6.2. Engine identification
• 6.6.3. Guarantee Conditions for the EPA Emission Standard
• 7. Inspection and Adjustment
• 7.1. Periodic Maintenance Schedule
• 7.2. Periodic Inspection and Maintenance Procedure
• 7.2.1. Check before Daily Operation
• 7.2.2. inspection after initial 50 hours operation
• 7.2.3. Inspection every 50 hours
• 7.2.4. Inspection every 250 hours or 3 months
• 7.2.5. Inspection every 500 hours or 6 months
• 7.2.6. Inspection every 1,000 hours or one year
• 7.2.7. Inspection every 2000 hours or 2 years
• 7.3. Adjusting the no-load maximum or minimum speed
• 7.4. Sensor Inspection
• 7.4.1. Oil pressure switch
• 7.4.2. Thermo switch
• 7.5. Water leak check in cooling water system
• 7.6. Radiator cap inspection
• 7.7. Thermostat inspection
• 7.8. Adjusting Operation
• 7.9. Long storage
• 8. TROUBLESHOOTING
• 8.1. Preparation before troubleshooting
• 8.2. Quick Reference Table for Troubleshooting
• 8.3. Troubleshooting by measuring Compression Pressure
• 9. Disassembly, Inspection and Reassembly of Engines
• 9.1. Complete disassembly and reassembly
• 9.1.1. Introduction
• 9.1.2. Special service tools
• 9.1.3. Complete disassembly
• 9.1.4. Precautions before and during reassembly
• 9.1.5. Adjusting operation
• 9.2. Cylinder Head Disassembly, Inspection and Reassembly
• 9.2.1. Components (2-valve cylinder head)
• 9.2.2. Disassembly procedure
• 9.2.3. Reassembly procedure
• 9.2.4. Servicing points
• 9.2.5. Parts Inspection and measurement
• 9.2.6. Valve seat correction
• 9.2.7. Valve guide replacement
• 9.2.8. Valve stem seal replacement
• 9.3. Gear Train and Camshaft
• 9.3.1. Components
• 9.3.2. Disassembly procedure
• 9.3.3. Reassembly procedure
• 9.3.4. Servicing points
• 9.3.5. Parts inspection and measurement
• 9.3.6. Oil seal replacement
• 9.3.7. Camshaft bushing replacement
• 9.4. Cylinder Block
• 9.4.1. Components
• 9.4.2. Disassembly procedure
• 9.4.3. Reassembly procedure
• 9.4.4. Servicing points
• 9.4.5. Parts inspection and measurement
• 9.4.6. Cylinder bore correction
• 9.4.7. Piston pin metal replacement
• 9.4.8. Oil seal replacement (Flywheel housing side)
• 10. LUBRICATION SYSTEM
• 10.1. Lubrication System Diagram
• 10.2. Trochoid Pump Components
• 10.3. Disassembly(Reverse the below procedure for reassembly)
• 10.4. Servicing Points
• 10.5. Parts Inspection and Measurement
• 10.5.1. Trochoid pump inspection and measurement
• 11. COOLING SYSTEM
• 11.1. Cooling water System
• 11.2. Cooling Water Pump Components91
• 11.3. Disassembly (Reverse the below procedure for reassembly)
• 11.4. Servicing Points
• 12. FUEL INJECTION PUMP / GOVERNOR
• 12.1. Introduction
• 12.2. Fuel Injection Pump
• 12.2.1. Fuel system diagram
• 12.2.2. External view and components
• 12.2.3. Disassembly procedure
• 12.2.4. Reassembly procedure
• 12.2.5. Confirmation and adjustment of fuel injection timing
• 12.2.6. Confirmation and adjustment of no-load maximum and minimum speed
• 13. The specifications of a starting motorand the characteristics
• 13.1. The specifications and the characteristics
• 13.1.1. Specifications
• 13.1.2. Characteristics
• 13.2. The structure of a starting motor and the wiring diagram
• 13.2.1. Structure
• 13.2.2. Wiring diagram of a starting motor
• 13.3. Performance
• 14. ALTERNATOR
• 14.1. Alternator
• 14.1.1. Specifications
• 14.1.2. Structure
• 14.1.3. Wiring diagram
• 14.1.4. Standard output characteristics
• 14.1.5. Inspection
• 14.2. Alternator
• 14.2.1. Components
• 14.2.2. Specifications
• 14.2.3. Wiring diagram
• 14.2.4. Standard output characteristics
• 14.2.5. Inspection
• 14.3. Troubleshooting
• 15. Electric Wiring
• 15.1. Electric Wiring Diagram
• 15.1.1. Alternator
• 15.1.2. Starting motor
• 15.1.3. Current limiter
• 15.1.4. Section area and resistance of electric wire
• 16. SERVICE STANDARDS
• 16.1. Engine Tuning
• 16.2. Engine Body
• 16.2.1. Cylinder head
• 16.2.2. Gear train and camshaft
• 16.2.3. Cylinder block
• 16.3. Lubricating Oil System (Trochoid Pump)
• 17. Tightening Torque for Bolts and Nuts
• 17.1. Tightening Torques for Main Bolts and Nuts
• 17.2. Tightening Torques for Standard Bolts and Nuts
• 18. BACKCOVER