Technical Manual Hitachi ZW150-6, ZW150PL-6 Wheel Loader | TOPTC50-EN-01

Technical Manual Hitachi ZW150-6, ZW150PL-6 Wheel Loader TOPTC50-EN-01 (Preview)

TOPTC50-EN-01
CONTENTS
INTRODUCTION
To The Reader
Additional References
Manual Composition
Page Number
Trademark
Safety Alert Symbol and Headline Notations
Units Used
SYMBOL AND ABBREVIATION
Symbol and Abbreviation
SECTION AND GROUP CONTENTS
SECTION 1 GENERAL
Group 1 Specifications
Specifications
Group 2 Component Layout
Main Component (Overview)
Main Component
Electrical System (Overview)
Air Cleaner and Radiator Assembly
Battery Box
Hydraulic Oil Tank
Fuel Tank
Cab
Engine
Aftertreatment Device
Transmission, HST Motor
Fan Valve
Fan Valve (With Fan Reverse Rotation) (Optional)
HST Pump, 3-Gear Pump Unit
Control Valve
Manifold Valve
Brake Charge Valve
Emergency Steering Block
Emergency Steering Pump
Ride Control Valve
DEF Tank
DEF Supply Module
Group 3 Component Specifications
Engine
Engine Accessories
Hydraulic Component
Electrical Component
SECTION 2 SYSTEM
Group 1 Controller
Outline
CAN Circuit
Group 2 Control System
Summary
Engine Control (ECM)
HST Pump/Motor Control, Transmission Control
Fan Control, Valve Control
Other Controls
Control by Electrical and Hydraulic Combined Circuit
Group 3 Engine System
Outline
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
Main Circuit
HST Circuit
Pilot Circuit/Fan Circuit
Fan Circuit
Transmission Circuit
Group 5 Electrical System
Summary
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 (Option)
Engine Stop Circuit
Steering Column Box Circuit
Headlight Circuit
Hazard Light Circuit (Key Switch: OFF)
Turn Signal Light Circuit
Horn Circuit (Key Switch: OFF)
Reverse Light, Back Buzzer Circuit
Brake Light Circuit
Parking Brake Circuit
Accessory Circuit
Work Light Circuit
Wiper Circuit
Cab Light Circuit
SECTION 3 COMPONENT OPERATION
Group 1 Pump Device
Outline
Rotary Group
Displacement Angle Control Cylinder
Pump Displacement Angle Control Solenoid Valve
Forward/Reverse Control Solenoid Valve
Cutoff Valve
High-Pressure Relief Valve
Low-Pressure Relief Valve
HST Charging Pump
3-Gear Pump Unit
Group 2 Control Valve
Outline
Hydraulic Circuit
Main Relief Valve
Overload Relief Valve (With Make-Up Function)
For Lift Arm Raise and Bucket Tilt Circuits
Make-Up Valve
Flow Rate Control Valve
Group 3 Cooling Fan System
FAN MOTOR
Fan Valve
Fan Valve (With Fan Reverse Rotation) (Optional)
Group 4 Steering Valve
Outline
Structure
Operation
Overload Relief Valve
Makeup Valve
Group 5 HST Motor
Outline
Rotary Group
Regulator
Motor Displacement Angle Control Solenoid Valve
Motor Displacement Angle Control
Flushing Valve
Group 6 Pilot Valve
Outline (Joystick Type Pilot Valve for Front Attachment)
Operation
Electromagnetic Detent
Outline (Auxiliary Pilot Valve) (Optional)
Outline (Auxiliary Pilot Valve) (Optional)
Operation
Group 7 Brake Charge Valve/Manifold Valve
Outline
Brake Charge Valve
Manifold Valve
Pilot Reducing Valve
Parking Brake Solenoid Valve
Control Lever Lock Solenoid Valve
Pilot Accumulator
Group 8 Transmission
Outline
Clutch Pressure Control Solenoid Valve
Parking Brake
Group 9 Axle
Outline
Differential
Torque Proportioning Differential (TPD)
Limited Slip Differential (LSD) (Optional)
Service Brake
Final Drive / Axle Shaft
Group 10 Brake Valve
Outline
Operation
Group 11 Priority Valve
Outline
Structure
Operation
Group 12 Ride Control Valve
Outline
Charge-Cut Spool
Overload Relief Valve
Drain Plug
Group 13 Others
Propeller Shaft
HST Cooler Bypass Check Valve
Service Brake Accumulator
Steering Accumulator
Ride Control Accumulator
Emergency Steering Check Block
Emergency Steering Pump (Option)
Solenoid Valve
Filter
Bucket Regeneration Selector Valve
Bucket Regenerative Valve
SERVICE MANUAL REVISION REQUEST FORM