Technical Manual Hitachi ZW180-5B, ZW180PL-5B Wheel Loader | TONDB-EN-01 (2015.02.16)

Technical Manual Hitachi ZW180-5B, ZW180PL-5B Wheel Loader TONDB-EN-01 (2015.02.16) (Preview)

TONDB-EN-01
INTRODUCTION
To The Reader
Additional References
Manual Composition
Page Number
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 (ZW180-5B)
Specifications (ZW180PL-5B)
Group 2 Component Layout
Main Component (Overview)
Main Component
Main Component
Electric Component Layout (Overview)
Electrical System (Cab)
Engine and Fan Pump
Pump Device
Control Valve
Fan Valve
Priority Valve
Drive Unit
Front Axle
Manifold Valve
Parking Brake Solenoid Valve
Brake Charge Valve
Emergency Steering Block (Optional)
Emergency Steering Pump (Optional)
Pressure Sensor Block
Ride 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
Transmission Control
Fan Control, Valve Control
Other Controls
Control by Electric and Hydraulic Combined Circuit
Group 3 ECM System
Outline
Fuel Injection Control
Fuel Injection Amount Correction Control
EGR Control
Preheating Control
Variable Turbocharger Control
Group 4 Hydraulic System
Outline
Pilot Circuit
Ride Control Circuit (Refer to Control System / Ride Control.)
Main Circuit
Emergency Steering Circuit (OP) (Refer to Control System / Emergency Steering Control.)
Fan Circuit
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)
Neutral Engine Start Circuit
Charging Circuit (Key Switch: ON)
Surge Voltage Prevention Circuit
Pilot Shut-Off Circuit (Key Switch: ON)
Auto Shut-Down Circuit (Optional)
Engine Stop Circuit
Steering Column Monitor Circuit
Head Light Circuit
Hazard Light Circuit (Key Switch: OFF)
Turn Signal Light Circuit:
Horn Circuit (Key Switch: OFF)
Reverse Light/Reverse 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
Main Pump
Regulator
Pilot Pump
Pump Delivery Pressure Sensor
Group 2 Control Valve
Outline
Hydraulic Circuit
Main Relief Valve
Overload Relief Valve (Bucket: Rod Side)
Overload Relief Valve (Lift Arm Raise, Bucket Bottom Side)
Flow Rate Control Valve
Pump Control Valve
Group 3 Cooling Fan System
Fan Pump
Fan Motor
Fan Valve
Group 4 Steering Valve
Outline
Structure
Operation
Overload Relief Valve
Make-Up Valve
Group 5 Priority Valve
Outline
Structure
Operation
Group 6 Pilot Valve
Outline (Fingertip Control Type Pilot Valvefor Front Attachment)
Operation
Electromagnetic Detent
Outline (Joystick Type Pilot Valve for Front Attachment)
Operation
Electromagnetic Detent
Group 7 Brake Charge Valve
Outline
Brake Charge Valve
Group 8 Manifold Valve
Outline
Manifold Valve
Pilot Relief Valve
Torque Control Solenoid Valve
Front Control Lever Lock Solenoid Valve
Pilot Accumulator
Group 9 Drive Unit
Outline
Torque Converter
Transmission
Operation of Transmission
Transmission Control Valve
Drive Unit Circuit
Group 10 Axle
Outline
Differential
Torque Proportioning Differential (TPD)
Limited Slip Differential (LSD) (Optional)
Service Brake
Final Drive / Axle Shaft
Group 11 Brake Valve
Outline
Operation
Group 12 Ride Control Valve
Outline
Charge-Cut Spool
Overload Relief Valve
Drain Plug
Group 13 Others
Propeller Shaft
Torque Converter Cooler Check Valve
Service Brake Accumulator
Parking Brake Solenoid Valv
Slow Return Valve
Ride Control Accumulator
Emergency Steering Check Block
Emergency Steering Pump
Bucket Regenerative Selector Valve
Bucket Regenerative Valve
SERVICE MANUAL REVISION REQUEST FORM