Yanmar B7-5, B7-5A Excavator Service Manual

Description

• Model List:
  • B7-5, B7-5A Excavator

• 1. General Cautions for Maintenance Work
• 1.1. Correct Work
• 1.2. Safety Precautions
• 1.3. Preparations
• 1.4. Cautions for Disassembly and Reassembly
• 1.5. Cautions for Removal and Installation of Hydraulic Equipment
• 1.6. Cautions for Removal and Installation of Hydraulic Piping
• 1.7. Cautions for Handling Seals
• 1.8. Correct Installation of Hydraulic Hose
• 1.9. Specifications of Hydraulic Hose
• 1.10. Air Release of Hydraulic Equipment
• 2. Technical Data
• 2.1. Specifications
• 2.1.1. Machine Body
• 2.1.2. Engine
• 2.2. Outline Drawing and Working Area
• 2.2.1. B7-5, B7-5A
• 2.3. Weight List of Main Parts
• 2.4. Lifting Capacity List
• 3. Service Standards
• 3.1. Machine Performance
• 3.2. Engine
• 3.3. Undercarriage
• 3.3.1. Rubber Crawler Specifications
• 3.3.2. Steel Crawler Specifications
• 3.3.3. Common Specifications of Steel Rubber Crawlers
• 3.4. Controls
• 3.5. Hydraulic Equipment
• 3.5.1. Hydraulic Cylinders
• 3.6. Implement
• 3.6.1. Front Attachments
• 3.6.2. Blade Moving Device
• 3.6.3. Bucket Teeth
• 3.7. List of Tightening Torque
• 3.7.1. Machine
• 3.7.2. Engine
• 3.7.3. Tightening Torque for General Bolts and Nuts
• 4. Engine
• 4.1. B7-5 (4TNE98-EBVA)
• 4.1.1. General
• 4.1.1.1. How to Read This Manual
• 4.1.1.2. Precautions for Service Work
• 4.1.2. Troubleshooting
• 4.1.2.1. Quick Reference Table for Troubleshooting
• 4.1.2.2. Troubleshooting by Measuring Compression Pressure
• 4.1.3. Inspection and Adjustment
• 4.1.3.1. Oil Inspection
• 4.1.3.2. Cooling Water Inspection
• 4.1.3.3. Inspecting Water Leak from Cooling Water System and Radiator
• 4.1.3.4. Fan Belt Tension Inspection and Adjustment
• 4.1.3.5. Adjusting the Valve Clearance
• 4.1.3.6. Inspecting the Fuel Injection Valve Injection Pressure and Spray Pattern
• 4.1.3.7. Fuel Injection Timing Inspection and Adjustment
• 4.1.3.8. Sensor Inspection
• 4.1.3.9. Battery Inspection
• 4.1.3.10. Adjusting Operation
• 4.1.3.11. Long Storage
• 4.1.3.12. Periodic Maintenance Schedule
• 4.1.4. Engine Body
• 4.1.4.1. Introduction
• 4.1.4.2. Cylinder Head
• 4.1.4.3. Gear Train and Camshaft
• 4.1.4.4. Cylinder Block
• 4.1.5. Lubrication System
• 4.1.5.1. Lubrication System Diagram
• 4.1.5.2. Trochoid Pump Components
• 4.1.5.3. Disassembly (Reverse the Procedure Below for Assembly)
• 4.1.5.4. Servicing Points
• 4.1.5.5. Parts Inspection and Measurement
• 4.1.6. Cooling System
• 4.1.6.1. Cooling Water System
• 4.1.6.2. Cooling Water Pump Components
• 4.1.6.3. Disassembly (Reverse the Procedure Below for Assembly)
• 4.1.6.4. Servicing Points
• 4.1.7. Fuel Injection Pump / Governor
• 4.1.7.1. Introduction
• 4.1.7.2. Fuel Injection Pump
• 4.1.7.3. Fuel Injection Valve
• 4.1.7.4. Fuel Feed Pump
• 4.1.7.5. Governor
• 4.1.7.6. Special Service Tools for Disassembly / Assembly
• 4.1.8. Starting motor
• 4.1.8.1. Specifications
• 4.1.8.2. Configuration Drawing
• 4.1.8.3. Troubleshooting
• 4.1.8.4. Component Names and Disassembly Procedure
• 4.1.8.5. Disassembly Procedure
• 4.1.8.6. Inspection and Maintenance
• 4.1.8.7. Assembly
• 4.1.8.8. Adjustment
• 4.1.8.9. Service Standards
• 4.1.9. Alternator
• 4.1.9.1. Specifications
• 4.1.9.2. Section View
• 4.1.9.3. Troubleshooting
• 4.1.9.4. Parts Names and Disassembly Procedure
• 4.1.9.5. Inspection and Overhaul
• 4.1.9.6. Assembly
• 4.1.9.7. Service Standards
• 4.1.9.8. Performance Test
• 4.1.10. Special Service Tools
• 4.1.10.1. Special Tools
• 4.1.10.2. Measuring Instruments
• 4.1.11. General
• 4.1.11.1. How to Read This Manual
• 4.1.11.2. Precautions for Service Work
• 4.1.11.3. Engine External Views
• 4.1.11.4. Structural Description
• 4.1.11.5. Exhaust Gas Emission Regulation
• 4.1.12. Troubleshooting
• 4.1.12.1. Quick Reference Table for Troubleshooting
• 4.1.12.2. Troubleshooting by Measuring Compression Pressure
• 4.1.13. Inspection and Adjustment
• 4.1.13.1. Oil Inspection
• 4.1.13.2. Cooling Water Inspection
• 4.1.13.3. Inspecting Water Leak from Cooling Water System and Radiator
• 4.1.13.4. Fan Belt Tension Inspection and Adjustment
• 4.1.13.5. Adjusting the Valve Clearance
• 4.1.13.6. Inspecting the Fuel Injection Valve Injection Pressure and Spray Pattern
• 4.1.13.7. Fuel Injection Timing Adjustment / Fuel Injection Pump Inspection and Adjustment
• 4.1.13.8. Sensor Inspection
• 4.1.13.9. Battery Inspection
• 4.1.13.10. Adjusting Operation
• 4.1.13.11. Long Storage
• 4.1.13.12. Periodic Maintenance Schedule
• 4.1.14. Engine Body
• 4.1.14.1. Introduction
• 4.1.14.2. Cylinder Head
• 4.1.14.3. Gear Train and Camshaft
• 4.1.14.4. Cylinder Block
• 4.1.15. Lubrication System
• 4.1.15.1. Lubrication System Diagram
• 4.1.15.2. Trochoid Pump Components
• 4.1.15.3. Disassembly (Reverse the Procedure Below for Assembly)
• 4.1.15.4. Servicing Points
• 4.1.15.5. Parts Inspection and Measurement
• 4.1.16. Cooling System
• 4.1.16.1. Cooling Water System
• 4.1.16.2. Cooling Water Pump Components
• 4.1.16.3. Disassembly (Reverse the Procedure Below for Assembly)
• 4.1.16.4. Servicing Points
• 4.1.17. Fuel Injection Pump / Governor
• 4.1.17.1. Introduction
• 4.1.17.2. Fuel Injection Pump
• 4.1.18. Starting motor
• 4.1.18.1. Specifications
• 4.1.18.2. Components
• 4.1.18.3. Troubleshooting
• 4.1.19. Alternator
• 4.1.19.1. Components
• 4.1.19.2. Specifications
• 4.1.19.3. Wiring diagram
• 4.1.19.4. Standard output characteristics
• 4.1.19.5. Troubleshooting
• 4.1.20. Air Heater
• 5. Hydraulic System
• 5.1. Outline
• 5.1.1. Control Valve Operation
• 5.1.2. Additional Operation of Control Valve
• 5.2. Hydraulic Circuit Schematic
• 5.2.1. B7-5
• 5.2.2. B7-5A
• 5.3. Circuit Operation
• 5.3.1. Boom
• 5.3.2. Arm
• 5.3.3. Bucket
• 5.3.4. Swing
• 5.3.5. Boom Offset
• 5.3.6. Blade
• 5.3.7. Travel
• 5.3.8. Simultaneous Operation of Travel and Boom / Bucket
• 5.3.9. Simultaneous Operation of Travel and Arm / Boom Offset
• 5.3.10. Simultaneous Operation of Boom Up and Arm Retract
• 5.3.11. Simultaneous Operation of Boom Up and Bucket
• 5.3.12. Simultaneous Operation of Boom Up and Swing
• 5.3.13. Hydraulic P.T.O.
• 5.4. Pressure Adjustment
• 5.4.1. Relief Valves
• 5.4.2. Swing Brake Valve
• 5.4.3. Cut-off Valve
• 6. Hydraulic Equipment
• 6.1. Hydraulic Pump
• 6.2. Control Valve
• 6.3. Pilot Valve
• 6.4. Swing Motor
• 6.5. Travel Motor
• 7. Adjustment and Repair
• 7.1. Electric Equipment of the Machine
• 7.1.1. Parts Layout of Electrical Equipment
• 7.1.2. Monitor and Alarm Systems
• 7.1.3. Wiring Diagram
• 7.1.4. Circuit Description of Engine Start, Stop and Battery Charging
• 7.1.5. Removal and Reinstallation of Engine
• 7.1.6. Removal and Reassembly of Starter Motor
• 7.2. Undercarriage
• 7.2.1. Outline
• 7.2.2. Compatibility of Main Parts
• 7.2.3. Points of Reassembly (Rubber Crawler Type)
• 7.2.4. Points of Reassembly (Steel Crawler Type)
• 7.2.5. Disassembly and Reassembly of Idler
• 7.2.6. Disassembly and Reassembly of Track Roller
• 7.2.7. Disassembly and Reassembly of Carrier Roller
• 7.2.8. Installation of Floating Seal
• 7.2.9. Drawings of Jigs
• 7.3. Controls
• 7.3.1. Control Train
• 7.3.2. Mechanical Control Linkage
• 7.3.3. Adjustment of Implement Control Levers
• 7.3.4. Adjustment of Travel Levers
• 7.3.5. Adjustment of Boom Offset Pedal
• 7.3.6. Adjustment of Blade Control Lever
• 7.3.7. Adjustment of Lock Lever
• 7.3.8. Adjustment of Accelerator Lever
• 7.4. Swing Bearing
• 7.5. Hydraulic Equipment
• 7.5.1. Removal and Reinstallation of Hydraulic Pump
• 7.5.2. Removal and Reinstallation of Control Valve
• 7.5.3. Removal and Reinstallation of Swing Motor
• 7.5.4. Removal and Reinstallation of Swivel Joint
• 7.5.5. Disassembly and Reassembly of Swivel Joint
• 7.5.6. Disassembly and Reassembly of Hydraulic Cylinder
• 7.5.7. Hydraulic Oil Tank
• 7.5.8. Piping Layout
• 7.6. Work Implements
• 7.6.1. Removal and Reinstallation of Work Implements
• 7.7. Cabin
• 7.7.1. Cabin
• 8. Periodic Inspection and Servicing
• 8.1. List of Periodic Inspection and Servicing
• 9. Fuel, Lube Oil and Grease Recommended
• 10. Troubleshooting
• 10.1. Non-breakdowns
• 10.1.1. Natural Release of Bucket
• 10.1.2. Discontinuous Arm Movement
• 10.1.3. Extension or retraction of Boom Offset Cylinder when Excavating
• 10.1.4. Thermal Shock of Travel Motor
• 10.1.5. Time Lag on Travel Speed Switching
• 10.1.6. Fluctuation in Oil Level of Hydraulic Oil Tank due to Temperature Change
• 10.2. Troubleshooting
• 10.2.1. Machine and Engine
• 10.2.2. Electrical Equipment on Panel
• 11. Reference Data
• 11.1. Specifications for Attachment
• 11.2. Standard Bucket Specifications