Technical Manual Hitachi ZX400R-3, ZX400LCH-3 Hydraulic Excavator | TO1JK-E-00

Technical Manual Hitachi ZX400R-3, ZX400LCH-3 Hydraulic Excavator TO1JK-E-00 (Preview)

TO1JK-E-00
INTRODUCTION
SECTION AND GROUP CONTENTS
SECTION 1 GENERAL
Group 1 Specifications
Specifications
Working Ranges
Shoe Types and Applications
Bucket Types and Applications
Group 2 Component Layout
Main Components
Electrical System (Overview)
Electrical System (In Cab)
Electrical System (Rear Tray)
Electrical System (Switch Panel)
Electrical System (Utility Space)
Electrical System (Relays)
Engine
Pump Device
Swing Device
Control Valve
Signal Control Valve
Solenoid Valve Unit
Travel Device
Group 3 Component Specifications
Engine
Engine Accessories
Hydraulic Component
Electrical Component
SECTION 2 SYSTEM
Group 1 Controller
Outline
Can (Network Provided for Machine)
MC: Main Controller
ECM: Engine Control Module
ICF: Information Controller
Monotor Unit
Group 2 Control System
Outline
Engine Control
Pump Control
Valve Control
Other Controls
Group 3 ECM System
Outline
Fuel Injection Control
Engine Start Control
EGR (Exhaust Gas Recirculation) Control
Fuel Injection Amount Correction
Fuel Filter Restriction Indicator Control
Engine Stop Control
Group 4 Hydraulic System
Outline
Pilot Circuit
Main Circuit
Boom Lower Meter-In Cut Control
Group 5 Electrical System
Outline
Main Circuit
Electric Power Circuit (Key Switch: OFF)
Accessory Circuit
Starting Circuit (Key Switch: START)
Charging Circuit (Key Switch: ON)
Serge Voltage Prevention Circuit
Pilot Shut-Off Circuit (Key Switch: ON)
Security Lock Circuit
Engine Stop Circuit (Key Switch: OFF)
Security Horn Circuit
Working Light Circuit
Wiper Circuit
SECTION 3　COMPONENT OPERATION
Group 1 Pump Device
Outline
Main Pump 1, 2
Regulator
Pilot Pump
Pump Delivery Pressure Sensor
Group 2 Swing Device
Outline
Swing Reduction Gear
Swing Motor
Swing Parking Brake
Valve Unit
Swing Dampener Valve
Group 3 Control Valve
Outline
Hydraulic Circuit
Flow Combiner Valve
Main Relief Valve
Overload Relief Valve
Regenerative Valve
Anti-Drift Valve
Flow Rate Control Valve
Digging Regenerative Valve
Boom Lower Meter-In Cut Valve
Bypass Shut-Out Valve
Group 4 Pilot Valve
Outline
Operation
Shockless Function(Only for Travel Pilot Valve)
Group 5 Travel Device
Outline
Travel Reduction Gear
Travel Motor
Travel Brake Valve
Parking Brake
Group 6 Signal Control Valve
Outline
Pilot Port
Shuttle Valve
Shockless Valve
Pump 1 and Pump 2 Flow Rate Control Valves
Bucket Flow Rate Control ValveControl Spool, Flow Combiner Valve Control Spool, Swing Parking Brake Release Spool, Arm 1 Flow Rate Control Valve Control Spool
Group 7 Others (Upperstructure)
Pilot Shut-Off Solenoid Valve
Solenoid Valve
Hose Rupture Valve
Pilot Relief Valve
Group 8 Others (Undercarriage)
Swing Bearing
Center Joint
Track Adjuster
SERVICE MANUAL REVISION REQUEST FORM