Hitachi EX700 - Service Repair Manual - Wiring Diagrams

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HITACHI EX700 - WORKSHOP, SERVICE, REPAIR MANUAL - WIRING DIAGRAMS

- English Service Manual and Wiring Diagrams, for Hitachi EX700.
 

CONTENTS:

EX700 LORDER FRONT ATTACHMENT
- SECTION 01 SPECIFICATIONS
- General Information
- Specification
- Bucket Types and Applications
- Working Ranges
- SECTION 02 HYDRAURIC SYSTEM
- Hydraulic Circuit
- Specifications
- SECTION 03 OPERATIONAL PERFORMANCE TEST
- Front Attachment Test
- Hydraulic Cylinder Cycle Time
- Loading Function Drift Check
- Conporment Test
- Overload
- SECTION 04 MAINTENANCE
- Dimensions
- Maintenance Standard
EX700 HYDRAULIC EXCAVATOR SERVICE MANUAL
- SECTION 01 HOW TO USE
- Group 01 Section & Group Contents
- Group 02 Introduction
- Safety Alert Symbol
- Headline of Notation
- To Keep Confidential
- Group 03 Features of This Manual
- Construction
- Tab
- Page
- Contents
- Group 04 Safty Information
- SECTION 02 SPECIFICATIONS
- Group 01 General Specifications
- Dimensions
- Weights and Ground Pressures
- Backhoe Attachments
- Loading Shovel Attachments
- Working Ranges
- Lifting Capacities
- Transportation
- Group 02 Components Specifications
- Engine
- Main Pump
- Pilot Pump
- Control Valve
- Swing Motor
- Travel Motor
- Center Joint
- Pilot Valve (for Travel)
- Pilot Valve (for Swing,Boom,Arm,Bucket)
- Control Neutralizer Valve
- Shockless Valve
- Accumulator
- Hydraulic Tank
- Suction Filter
- Full-Flow Filter
- Air Breezer
- Bypass Check Valve
- Pilot Filter
- Oil Cooler
- Solenoid Valve(E-P Control)
- Solenoid Valve(pump Control)
- Solenoid Valve(EHC Valve)
- Mode Selection Cylinder
- Boom Cylinder
- Arm Cylinder
- Bucket Cylinder
- Pump Transmission
- Group 03 Torque Reference
- Group 04 Others
- maintenance Intervals
- Service Refill Capacities
- Group 05 Conversion Table
- SECTION 03 GENERAL
- Group 01 Introduction
- Group 02 Construction
- Group 03 Hydraulic System
- Hydraulic System
- Main Hydraulic Circuit
- Pilot Hydraulic Circuit
- Group 04 Electric System
- Main Circuit
- Control System
- Monitor System
- SECTION 04 SUPERSTRUCTURE
- Group 01 Hydraulic Pump Device
- O/P, Hydraulic Pump
- Outline
- Pump Regulator
- Pump Minimum Displacement Operation
- Pump Displacement Increasing Operation
- Pump Maximum Displacement Operation
- Pump Displacement Decreasing Operation
- Summation System Operation
- Constant Horsepower System Operation
- Power Mode Change Operation
- Relief Oil Minimizing System Operation
- Relief Oil Minimizing System (RMS) Cancel Operation
- Swing Operation and SP Mode Operation
- Group 02 Control Valve
- General
- Construction and Function
- Group 03 Swing Device
- Outline
- Function
- Group 04 Pilot Valve
- Outline
- Function
- Group 05 Control Neutralizer Valve
- Outline
- Function
- Group 06 Shockless Valve
- Outline
- Function
- Group 07 Accumulator
- Outline
- Function
- Group 08 Solenoid Valve
- O/P, Solenoid Valve (Three Spool)
- Outline
- Function
- O/P, Solenoid Valve (One Spool)
- Outline
- Function
- O/P, EHC Valve
- Outline
- Operation
- Group 09 Cylinder
- O/P, Cylinder
- Construction and Function
- SECTION 05 UNDERCARRIAGE
- Group 01 Travel Device
- O/P, Travel Motor
- Outline
- Operation
- Parking Brake
- Brake Valve
- Group 02 Center Joint
- O/P, Center Joint
- Outline
- SECTION 07 HYDRAULIC SYSTEM
- Group 01 Outline
- Group 02 Main Hydraulic Circuit
- Suction Circuit and Delivery Circuit
- Return Circuit
- Drain Circuit
- Group 03 Pilot Circuit
- Suction,Delivery and Return Circuit
- Accumulator
- Control Neutralizer Valve
- Pump Displacement Control Circuit
- Travel Control Circuit
- Heat-Run Circuit
- Swing Parking Brake
- Group 04 Single Operation
- Boom Raise Circuit Operation
- Boom Lower Circuit Operation
- Arm Roll-In Circuit Operation
- ArmRoll-Out Circuit Operation
- Bucket Roll-In Circuit
- Bucket Roll-Out Circuit
- Swing Circuit Operation
- Travel Circuit Operation
- Travel Forward and Reverse Operation
- Group 05 Combined Operation
- Outline
- Combined Swing and Boom Operation
- Combined Swing and Arm Roll-In Operation
- Combined Swing and Arm Roll-Out Operation
- Combined Swing and Bucket Operation
- Combined Boom and Arm Operation
- Combined Swing and Travel Operation
- Combined Boom and Travel Operation
- Combined Arm and Travel Operation
- Combined Bucket and Travel Operation
- Group 06 Heavy Lift Operation (option)
- Outline
- Relief Pressure Change Circuit
- Pump Displacement Minimizing ontrol Circuit
- SECTION 08 PNEUMATIC SYSTEM
- Group 01 General
- Group 02 Air-Compressor
- Grpoup 03 Governor
- Group 04 Auto-Drain Valve
- Group 05 Air Horn
- Group 06 Circuit Diagram
- SECTION 09 ELECTRICAL SYSTEM
- Group 01 Safety Precautions
- Safety Precautions
- Group 02 Specifications
- Battery, Starter, Safety Relay, Alternator, Headlight, Wiper Motor, Speaker,
- Room light, Radio, Relay (Horn), Relay (Service Meter etc.), Relay(Battery), Fuse
- Group 03 Construction and Function
- Construction of Electrical System
- Monitor
- Control (E-P Control) System
- EHC Valve Pump Displacement Control Valve
- Quick Auto Idling System
- Pump Displacement Control at Engine Low Speed
- Travel Speed Change
- Function of Seneors, Relays and Solenoid Valve
- Group 04 Circuit Operations
- Characteristics of Electrical Circuit
- Electrical Circuit
- Power Circuit
- Starting Circuit
- Starting Motor
- Start-Aid and Engine Fuel Shut-Off
- Charging Circuit
- Alternator Operation
- Accessory Circuit
- Gauge Panel Circuit
- Control Circuit
- Group 05 Maintenance
- Gauge Panel
- Assembly and Adjustment of Engine Control (Mode Selection) Device
- SECTION 10 TROUBLSHOOTING
- Group 01 Introduction
- General Information
- Performance Test
- Group 02 Diagnose Malfunctions
- Malfunctions Phenomena
- Hydraulic System
- Electric System
- Group 03 Excavator Performance Test
- Introduction
- Engine Performance Measurement
- Travel Performance Measurment
- Swing Performance Measurement
- Front-end Attachment
- Control Levers Performance Measurement
- Group 04 Components Performance Standard
- Introduction
- Pilot Relief Valve
- Main Relief Valve
- Overlord Relief Valve
- Swing Crossover Relief Valve
- Travel Crossover Relief Valve
- Main Hydraulic Pump
- Travel Motor
- Swing Motor
- Group 05 Electrical System Test
- Commom Circuit Test
- Measurement Standard
- Power Circuit
- Starting Circuit
- Charging Circuit
- Start-Aid and Engine Fuel Shut-Off Circuit
- Accessory Circuit
- Gauge Panel Circuit
- Control Circuit
- SECTION 11 ENGINE
- Group 01 Engine
- General
- Engine Specifications
- Engine Speed Control System
- Air Cleaner Operation
- Turbocharger Operation
- Mechanism of the Engine Speed Control Lever
EX700 WORKSHOP MANUAL
- SECTION 04 SUPERSTRUCTURE
- Group 01 Superstructure
- Main Frame and Counter-Weight
- Engine
- Hydrauric oil Tank
- Fuel Tank
- Swing Device
- Electric Parts
- Air Conditioner
- Engine Control Lever
- Main Piping
- Oil Cooler Piping
- Pump Device
- Transmission Cooler Piping
- Control Box
- Cab Group
- Pilot Piping
- Control Lever
- Air Piping
- Group 02 Hydraulic Pump Device
- D/A, Main Pump
- Disassembly
- Inspection
- D/A, Regulator
- Disassembly
- Assembly
- D/A, KPR4-7 Gear Pump
- Disassembly
- Inspection
- Assembly
- D/A, Pump Tramsnission
- Disassembly
- Assembly
- Group 03 Control Valve
- D/A, Control Valve
- Disassembly
- Inspect
- Asemmbly
- Group 04 Swing Device
- D/A, Cab Motor
- Disassembly
- Inspection
- Assembly
- Special Tools
- D/A, Swing Reduction Device
- Disassembly
- Assembly
- Group 05 Pilot Valve
- D/A, HV Type Pilot Valve (Front-End Attachment)
- Disassmbly
- Assembly
- Special Tools
- D/A, HV Type Pilot Valve (Travel)
- Disassembly
- Assembly
- Special Tools
- Group 06 Control Neutralizer Valve
- D/A, Control Neutralizer Valve
- Disassembly
- Assembly
- Group 07 Shockless Valve
- D/A, Shockless Valve
- Disassembly
- Inspection
- Assembly
- Group 08 Solenoid Valve
- D/A, Solenoid Valve (Three Spools)
- Disassembly
- Inspection
- Asemmbly
- D/A, Solenoid Valve (One Spool)
- Disassembly
- Inspection
- Assembly
- Group 09 Mode Selection Cylinder
- D/A, Mode Selection Cylinder
- Disassembly
- Assembly
- SECTION 05 UNDERCARRIGE
- Group 01 Undercarrige
- Track Frame
- Swing Bearing
- Travel Device and Piping
- Front Idler
- Adjuster
- Upper Roller and Lower Roller
- Track Link
- Center Joint
- Group 02 Travel Device
- D/A, Travel Motor
- Disassembly
- Inspection
- Assembly
- D/A, Travel Device
- Disassembly
- Assembly
- Special Tools
- Group 03 Center Joint
- D/A, Center Joint
- Disassembly
- Assembly
- Special Tools
- SECTION 06 FRONT-END ATTACHMENTS
- Group 01 Front-End Attachment
- Boom Assembly
- Arm Assembly
- Bucket Assembly
- Front Pipings
- Group 02 Hydraulic Cylinder
- Disassembly and Assembly
- Disassembly
- Inspection
- Assembly
- Special Tools
- Group 03 Pin and Bushing
- Specifications
- Group 04 Point and Side Cutter
- Specifications
- SECTION 07 SPECIAL TOOLS
- Group 01 Special Tool List
- Superstructure
- Undercarriage
- Front-End Attachment
- Measurement
- Group 02 Special Tool Drawing List
- Group 03 Special Tool Drawing
- Group 04 Special Tool Drawing Index