Hitachi EX8-2B Workshop Manual Excavator manuals in PDF

Factory Technical and Workshop Manual For Hitachi EX8-2B Excavators. Tons of illustrations, instructions, diagrams for step by step remove and install, assembly and disassembly, service, inspection, repair, troubleshooting, tune-ups.

Format: PDF
Language: English
Pages: 269
Bookmarks: Yes
Searchable: Yes
Wiring Diagrams: Yes
Hydraulic Diagrams: Yes

Model

Hitachi EX8-2B

Contents

1.Technical Manual

• -GENERAL
  –SPECIFICATION
  Specifications
  Working Ranges And Machine
  Dimensions For Transportation
  Engine Specification
  –COMPONENT LAYOUT
  Main Component
  Electrical System
  Monitor Panel
• -SYSTEM
  –HYDRAULIC SYSTEM
  Hydraulic System
• -COMPONENT OPERATION
  –PUMP DEVICE
  Outline
  Function
  –SWING DEVICE
  Swing Motor
  –CONTROL VALVE
  Outline
  Main Relief Valve
  Overload Relief Valve
  Overload Relief Valve (Swing)
  Make-Up Valve
  –TRAVEL DEVICE
  Outline
  Travel Reduction Gear
  Travel Motor
  Counterbalance Valve
  –OTHERS
  Swing Bearing
  Center Joint
  Track Adjuster
• -OPERATIONAL PERFORMANCE TEST
  –INTRODUCTION
  Operational Performance Test
  Preparation for Performance Tests
  –ENGINE TEST
  Engine Speed
  Engine Compression Pressure
  Valve Clearance
  Nozzle Check
  Injection Timing
  –EXCAVATOR TEST
  Travel Speed
  Track Revolution Speed
  Mistrack Check
  Travel Motor Leakage
  Swing Speed
  Swing Function Drift Check
  Swing Motor Leakage
  Swing Bearing Play
  Hydraulic Cylinder Cycle Time
  Dig Function Drift
  Control Lever Operating Force
  Control Lever Stroke
  –COMPONENT TEST
  Main Relief Valve Set Pressure
  Overload Relief Valve Set Pressure
  –STANDARD
  Operational Performance Standard
• -TROUBLESHOOTING
  –DIAGNOSING PROCEDURE
  Introduction
  Diagnosing Procedure
  –TROUBLESHOOTING A
  Troubleshooting A Procedure
  Starter Does Not Rotate
  Actuator Operating System Troubleshooting
  Front Attachment System Troubleshooting
  Swing System Troubleshooting
  Travel System Troubleshooting
  Blade System Troubleshooting
  –TROUBLESHOOTING B
  Troubleshooting B Procedure
  Malfunction of Alternator Indicator
  Malfunction of Engine Oil Pressure Indicator
  Malfunction of Overheat Indicator
  Malfunction of Hour Meter
  –ELECTRICAL SYSTEM INSPECTION
  Precautions for Inspection and Maintenance
  Fuse Continuity Test
  Battery Voltage Check
  Voltage Check
  Continuity Check

2.Workshop Manual

• -GENERAL INFORMATION
  –PRECAUTIONS FOR DISASSEMBLING AND ASSEMBLING
  Precautions for Disassembling and Assembling
  –TIGHTENING
  Tightening Torque Specifications
  Torque Chart
  Piping Joint
• -SUPERSTRUCTURE
  –PUMP DEVICE
  Remove and Install Pump Device
  –CONTROL VALVE
  Remove and Install Control Valve
  –SWING DEVICE
  Remove and Install Swing Device
  Disassemble Swing Reduction Gear
  Assemble Swing Reduction Gear
• -UNDERCARRIAGE
  –TRAVEL DEVICE
  Remove and Install Travel Device
  Disassemble Travel Device
  Assemble Travel Device
  Maintenance Standard
  –CENTER JOINT
  Remove and Install Center Joint
• -FRONT ATTACHMENT
  –FRONT ATTACHMENT
  Remove and Install Front Attachment
  Maintenance Standard
  –CYLINDER
  Remove and Install Cylinder
  Maintenance Standard
• -ENGINE AND ACCESSORY
  –GENERAL INFORMATION
  Specifications
  Performance Curves
  Dimensions
  –MECHANISM
  — ENGINE BODY
  ENGINE BODY
  Cylinder Block
  Cylinder Head
  Crankshaft
  Piston and Piston Rings
  Connecting Rod
  Camshaft
  Flywheel
  Rocker Arm
  Valve Timing
  —LUBRICATION SYSTEM
  General
  Oil Pump
  Relief Valve
  Oil Filter Cartridge
  Oil Pressure Switch
  —COOLING SYSTEM
  General
  Water Pump
  Thermostat
  Radiator
  Radiator Cap
  —FUEL SYSTEM
  General
  Fuel Filter
  Fuel Feed Pump
  Injection Pump
  Injection Nozzle
  —GOVERNOR
  —ELECTRICAL SYSTEM
  Starting System
  Charging System
  —COOLING SYSTEM
  General
  Water Pump
  Thermostat
  Radiator
  Radiator Cap
  —FUEL SYSTEM
  General
  Fuel Filter
  Fuel Feed Pump
  Injection Pump
  Injection Nozzle
  Governor
  —ELECTRICAL SYSTEM
  Starting System
  Charging System
  –DISASSEMBLING AND SERVICING
  —GENERAL
  Engine Identification
  General Precautions
  Tightening Torques
  Troubleshooting
  Servicing Specifications
  Maintenance Check List
  Check and Maintenance
  Special Tools
  —ENGINE BODY
  Checking and Adjustings
  Disassembling and Assembling
  Draining Water and Oil
  External Components
  Cylinder Head and Valves
  Timing Gear and Camshaft
  Piston and Connecting Rod
  Flywheel and Crankshaft
  Servicing
  Cylinder Head and Valves
  Piston and Connecting Rod
  Timing Gear and Camshaft
  Crankshaft
  Cylinder
  —LUBRICATING SYSTEM
  Checking
  Disassembling and Assembling
  Servicing
  Oil Pump
  —Cooling System
  Checking and Adjusting
  Fat Belt
  Radiator
  Thermostat
  Disassembling and Assembling
  Thermostat and Water Pump
  —Fuel System
  Checking and Adjusting
  Injection Nozzle
  Injection Pump
  Disassembling and Assembling
  Injection Nozzle
  —ELECTRICAL SYSTEM
  Checking
  Dynamo and Regulator
  Starter
  Glow Plug
  Disassembling and Assembling
  Starter
  Servicing
  Starter

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