Yanmar B37V Excavator Service Manual

Description

• Model List:
  • B37V 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. Machine Dimensions and Working Ranges
• 4.2.1. Canopy Type
• 4.2.2. Cabin Type
• 4.3. Component Weights
• 4.4. Lifting Capacities
• 5. SERVICING 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. Control Devices
• 5.5. Hydraulic Equipment
• 5.5.1. Hydraulic Cylinder
• 5.6. Work Implements
• 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. ENGINE
• 6.1. MeasurementInspection and Adjustment
• 6.1.1. Measuring the Compression Pressure
• 6.1.2. Adjusting the Valve Head 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 No-load Maximum (or Minimum) Revolutions
• 6.1.7. Checking the Cooling Water System and Radiator for Water Leakage
• 6.1.8. Checking the Sensors
• 6.2. Measuring ProcedureService 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 Ring
• 6.2.5. Connecting Rod
• 6.2.6. Camshaft
• 6.2.7. Crankshaft
• 6.2.8. Gears
• 6.2.9. Trochoid Pump
• 6.3. Precautions Reassembly
• 6.4. Fuel Supply System
• 6.4.1. Fuel Injection Pump
• 6.4.2. Fuel Feed Pump
• 6.4.3. Fuel System
• 6.4.4. Fuel Injection Valve
• 6.4.5. Governor Mechanism
• 6.4.6. Specification of Fuel Injection Pump
• 6.4.7. Service Data for Fuel Injection Equipment
• 6.5. Electrical Equipment
• 6.5.1. Starter Motor
• 6.5.2. Alternator
• 6.5.3. Air Heater
• 7. 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. Standard Specifications
• 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. Simultaneous Operation of Travel and Boom/Bucket
• 7.3.9. Simultaneous Operation of Travel and Arm/Boom Swing
• 7.3.10. Simultaneous Operation of Boom and Bucket
• 7.3.11. Simultaneous Operation of Arm and Bucket
• 7.3.12. Hydraulic P.T.O.
• 7.4. Pressure Adjustment
• 7.4.1. Relief Valves
• 7.4.2. Swing Brake Valve
• 7.4.3. Cut-off Valve
• 8. HYDRAULIC EQUIPMENT
• 8.1. Hydraulic　Pump
• 8.2. Control　Valve
• 8.3. Pilot　Valve
• 8.4. Swing　Motor
• 8.5. Travel　Motor
• 9. ADJUSTMENT　AND　REPAIR
• 9.1. Electric Equipment of the Machine
• 9.1.1. Arrangement of Electrical Equipment and Names of Parts
• 9.1.2. Monitor and Alarm Systems
• 9.1.3. Wiring　Diagram
• 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. Disassembly　and　Reassembly　of　Idler
• 9.2.6. Installation　of　Idler　Assembly
• 9.2.7. Disassembly　and　Reassembly　of　Track　Roller
• 9.2.8. Disassembly　and　Reassembly　of　Carrier　Roller
• 9.2.9. Drawing　of　Jig
• 9.3. Control
• 9.3.1. Control　Train
• 9.3.2. Disassembly　and　Reassembly　of　Mechanical　Control　Linkage
• 9.3.3. Adjustment　of　Lock　Lever
• 9.3.4. Adjustment　of　Implements　and　Swing　Control　Levers　(for　Semi-long　Lever　Type　Only)
• 9.3.5. Adjustment　of　Travel　Levers
• 9.3.6. Adjustment　of　2-Speed　Pedal
• 9.3.7. Adjustment　of　Boom　Swing　Pedal
• 9.3.8. Adjustment　of　Blade　Lever
• 9.3.9. Adjustment　of　Engine　Speed　Control
• 9.4. Swing　Bearing
• 9.5. Hydraulic　Equipment
• 9.5.1. Precautions　for　Removal　and　Installationand　Assembly　of　Hydraulic　Pump
• 9.5.2. Disassembly　and　Reassembly　of　Hydraulic　Cylinder
• 9.5.3. Swivel　Joint
• 9.5.4. Hydraulic　Oil　Tank
• 9.5.5. Piping　Layout
• 9.6. Cabin
• 10. PERIODIC　INSPECTION　AND　SERVICING
• 10.1. List　of　Periodic　Inspection　and　Servicing
• 11. FUELLUBE　OIL　AND　GREASE　RECOMMENDED
• 11.1. FuelLube　Oil　and　Grease　Recommended　ｂｙ　Yanmar
• 12. 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　80　degrees　Swing
• 12.1.6. Time　Lag　on　Travel　Speed　Switching
• 12.1.7. Fluctuation　in　Oil　Level　of　Hydraulic　Oil　Tank　Due　to　Temperature　Change
• 12.2. Troubleshooting
• 12.2.1. Machine　and　Engine
• 12.2.2. Electrical　Equipment　on　Panel
• 13. REFERENCE　DATA
• 13.1. Specifications　for　Attachment