Technical Manual Hitachi ZX140W-6 Wheeled Excavator | TOLAB50-EN-00

Technical Manual Hitachi ZX140W-6 Wheeled Excavator TOLAB50-EN-00 (Preview)

TOLAB50-EN-00
CNTENTS
INTRODUCTION
SYMBOL AND ABBREVIATION
SECTION AND GROUP CONTENTS
SECTION 1 GENERAL
Group 1 Specifications
Specifications ZX140W-6 (Rear Blade)
Specifications ZX140W-6 (Rear Outrigger).
Specifications ZX140W-6(Front Blade Rear Outrigger)
Specifications ZX140W-6(Front Outrigger Rear Blade)
Specifications ZX140W-6 (Front Outrigger Rear Outrigger)
Working Ranges ZX140W-6 Monoblock Boom
Working Ranges ZX140W-6 2-Piece Boom
Group 2 Component Layout
Main Component
Electrical System (Overview)
Electrical System (Cab)
Electrical System (Switch Panel)
Electrical System (Controller, Relays)
Electrical System (Cab Rear)
Electrical System (Relays)
Electrical System (Lights)
Engine
Pump Device
Around Pump Device
Control Valve
Signal Control Valve
Swing Shockless Valve
Swing Device
Accumulator Charging Valve
Swing Dampener Valve
Travel Shockless Valve
Brake Valve
Solenoid Valve Unit
Transmission Control Solenoid Valve
Travel Device
Around DEF Tank
Layout of Attachment Spec. Parts
Auxiliary Control Solenoid Valve Unit
Breaker Relief Solenoid Valve
Selector Valve Control Valve
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 (Option)
Other Control
MC2 Control
Group 3 Engine System
Outline
Fuel Injection Control
Fuel Injection Amount Correction Control
EGR Control
Preheating Control
Alarm Control
Neutral Start Control
Urea SCR System
Engine Output Restriction Control (INDUCEMENT)
Aftertreatment Device
Aftertreatment Device Regenerative Control
Group 4 Hydraulic System
Outline
Pilot Circuit
Steering Circuit
Main Circuit
Breaker/Pulverizer/Crusher Circuit (Option)
Group 5 Electrical System
Outline
Main Circuit
Electric Power Circuit (Key Switch: OFF)
CAN Circuit
Accessory 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
Light Circuit
Light Lighting Circuit
Turn Signal Light Circuit
Hazard Light Circuit
Brake Light Circuit
Horn Circuit
Forward/Reverse OFF Buzzer Circuit
Beacon Light Circuit (Optional)
SECTION 3 COMPONENT OPERATION
Group 1 Pump Device
Outline
Main Pump
Regulator
Solenoid Valve
Pilot Pump, Steering Pump, Assist Pump (Option)
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
Main Relief Valve
Overload Relief Valve (with Make-Up Function)
Make-Up Valve
Regenerative Valve
Anti-Drift Valve
Flow Rate Control 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 Pilot Valves)
Operation (Travel Pilot Valve)
Group 5 Electric Lever
Outline
Operation
Group 6 Transmission
Outline
Transmission
Shift Interlock Control
Shock Reducing Function
Parking Brake Release Device
Group 7 Axle
Front Axle
Differential Gear
Reduction Gear
Steering Cylinder
Rear Axle
Group 8 Travel Motor
Outline
Rotor Section
Regulator
Slow Speed (Large Displacement Angle) Selection
Overload Relief Valve
Travel Brake Valve
Group 9 Signal Control Valve
Outline
Pilot Port
Shuttle Valve
Shockless Valve
Pump 1 Flow Rate Control Valve, Pump 2 Flow Rate Control Valve
Arm 1 Flow Rate Control Valve Control Spool, Bucket Flow Rate Control Valve Control Spool, Swing Parking Brake Release Spool
Group 10 Steering Valve
Outline
Structure
Operation
Overload Relief Valve
Make-Up Valve
Relief Valve
Group 11 Brake Valve
Outline
Operation
Group 12 Others (Upperstructure)
Pilot Shut-Off Solenoid Valve
Transmission Control Solenoid Valve
Solenoid Valve
Travel Shockless Valve
Swing Shockless Valve
Accumulator Charging Valve, Accumulator Manifold
Hose Rupture Valve
Accumulator
Pilot Relief Valve Unit
Recirculation Valve (OP)
Selector Valve Control Valve (Option)
Breaker Relief Solenoid Valve (Option)
Group 13 Others (Undercarriage)
Swing Bearing
Center Joint
Slip Ring
Cylinder
SERVICE MANUAL REVISION REQUEST FORM