Technical Manual Hitachi ZX190LC-6, ZX190LCN-6 Hydraulic Excavator | TODBS50-EN-00

Technical Manual Hitachi ZX190LC-6, ZX190LCN-6 Hydraulic Excavator TODBS50-EN-00 (Preview)

TODBS50-EN-00
CONTENTS
INTRODUCTION
To The Reader
Additional References
Manual Composition
Page Number
Trademark
Safety Alert Symbol and Headline Notations
Units Used
SYMBOL AND ABBREVIATION
SECTION AND GROUP CONTENTS
SECTION 1 GENERAL
Group 1 Specifications
Specifications
Working Ranges (Grouser shoe)
Group 2 Component Layout
Main Component
Electrical System (Overview)
Electrical System (Rear Tray)
Electrical System (Switch Panel)
Electrical System (Utility Space)
Electrical System (Relays)
Engine
Aftertreatment Device
Pump Device
Around Pump Device
Control Valve
Signal Control Valve
Swing Device
Travel Device
5-Spool Solenoid Valve Unit
2-Spool Solenoid Valve Unit (Aftertreatment Device Regeneration Control)
DEF Tank
DEF Supply Module
Layout of Attachment Spec. Parts
Components Related with Breaker
Group 3 Component Specifications
Engine
Engine Accessories
Hydraulic Component
Electrical Component
SECTION 2 SYSTEM
Group 1 Controller
Outline
CAN Circuit
Group 2 Control System
Outline
Engine Control
Pump Control
Valve Control (Standard)
Valve Control (Optional)
Other Control
Group 3 Engine System
ECM System
Fuel Injection Control
Fuel Injection Amount Correction Control
EGR Control
Preheating Control
Variable Turbocharger Control
Alarm Control
Urea SCR System
Engine Output Restriction Control (INDUCEMENT)
Aftertreatment Device
Aftertreatment Device Regeneration Control
Group 4 Hydraulic System
Outline
Pilot Circuit
Main Circuit
Breaker/Pulverizer/Crusher Circuit (Optional)
Group 5 Electrical System
Outline
Main Circuit
Electric Power Circuit (Key Switch: OFF)
CAN Circuit
Accessory Related Circuit (Key Switch: ACC)
Starting Circuit (Key Switch: START)
Charging Circuit (Key Switch: ON)
Surge Voltage Prevention Circuit
Pilot Shut-Off Circuit (Key Switch: ON)
Auto Shut-Down Circuit/Automatic Engine Stop Circuit at Low Temperature
Engine Stop Circuit
Monitor Circuit
Security Circuit
Radio Circuit
Air Conditioner Circuit
Accessory Circuit
Work Light Circuit
Wiper/Washer Circuit
Cab Light Circuit
SECTION 3 COMPONENT OPERATION
Group 1 Pump Device
Outline
Main Pump
Regulator
Solenoid Valve
Pilot Pump
Pump Delivery Pressure Sensor
Pump Control Pressure Sensor
Group 2 Swing Device
Outline
Swing Reduction Gear
Swing Motor
Swing Parking Brake
Valve Unit
Group 3 Control Valve
Outline
Hydraulic Circuit
Flow Combiner Valve
Main Relief Valve
Overload Relief Valve (with Make-Up Function)
Regenerative Valve
Anti-Drift Valve
Flow Rate Control Valve
Digging Regenerative Valve
Boom Lower Meter-In Cut Valve
Auxiliary Flow Combiner Valve and Bypass Shut-Out Valve
Group 4 Pilot Valve
Outline
Operation (Front Attachment/Swing and Travel Pilot Valves)
Operation (Auxiliary, Positioning Pilot Valves)
Shockless Function (Only for Travel Pilot Valve)
Group 5 Travel Device
Outline
Travel Reduction Gear
Travel Motor
Parking Brake
Travel Brake Valve
Overload Relief Valve
Travel Mode Control
Group 6 Signal Control Valve
Outline
Pilot Port
Shuttle Valve
Shockless Valve
Pump 1 Flow Rate Control Valve, Pump 2 Flow Rate Control Valve, Pump 3 Flow Rate Control Valve
Flow Combiner Valve Control Spool, Swing Parking Brake Release Spool
Group 7 Others (Upperstructure)
Pilot Shut-Off Solenoid Valve
Solenoid Valve
Hose Rupture Valve
Pilot Relief Valve
Recirculation Valve
Group 8 Others (Undercarriage)
Swing Bearing
Centerjoint
Track Adjuster (Front Idler Integrated Type)
SERVICE MANUAL REVISION REQUEST FORM