Technical Manual Hitachi ZX190W-5B Wheeled Excavator | TOLBB-EN-00

Technical Manual Hitachi ZX190W-5B Wheeled Excavator TOLBB-EN-00 (Preview)

TOLBB-EN-00
INTRODUCTION
SYMBOL AND ABBREVIATION
SECTION AND GROUP CONTENTS
SECTION 1 GENERAL
– Group 1 Specifications
— Specifications ZX190W-5B (Standard Gauge, Rear Blade)
— Specifications ZX190W-5B (Standard Gauge, Rear Outrigger)
— Specifications ZX190W-5B (Standard Gauge, Front Blade Rear Outrigger)
— Specifications ZX190W-5B (Standard Gauge, Front Outrigger Rear Blade)
— Specifications ZX190W-5B (Standard Gauge, Front Outrigger Rear Outrigger)
— Working Ranges ZX190W-5B Monoblock Boom
— Working Ranges ZX190W-5B 2-Piece Boom
– Group 2 Component Layout
— Main Component Layout
— Swing Shockless Valve
— Electrical System (Overview)
— Electrical System (Cab)
— Electrical System (Switch Panel)
— Electrical System (Controllers and Relays)
— Electrical System (Around Air Cleaner)
— Electrical System (Relays)
— Electrical System (Lights)
— Engine
— Muffler Filter
— Pump Device
— Around Pump Device
— Control Valve
— Signal Control Valve
— Swing Device
— Travel Shockless Valve
— Accumulator Charging Valve
— Brake Valve
— Solenoid Valve Unit
— Transmission Changeover Solenoid Valve
— Travel Device
— Layout of Attachment Spec. Parts
— Auxiliary Solenoid Valve Unit (Auxiliary Flow Rate Control)
— Breaker Relief Solenoid Valve
— Selector 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
— MC 2 Control
— Pilot Cut Control
– Group 3 ECM System
— Outline
— Fuel Injection Control
— Fuel Injection Amount Correction Control
— EGR Control
— Preheating Control
— Alarm Control
— Muffler Filter
— Operation
— Muffler Filter Regenerative Control
– Group 4 Hydraulic System
— Outline
— Pilot Circuit
— Steering Circuit
— Main Circuit
— Breaker/Pulverizer/Crusher Circuit (Optional)
– Group 5 Electrical System
— Outline
— Main Circuit
— Electric Power Circuit (Key Switch: OFF)
— CAN Circuit
— Accessory Circuit
— 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 Circuit
— Hazard Light Circuit
— Brake Light Circuit
— Beacon Light Circuit (Optional)
— Horn Circuit
— Forward/Reverse OFF Buzzer Circuit
SECTION 3 COMPONENT OPERATION
– Group 1 Pump Device
— Outline
— Main Pump
— Regulator
— Solenoid Valve
— Pilot Pump, Steering Pump, Assist Pump
— Pump Delivery Pressure Sensor
— Pump Control Pressure Sensor
– Group 2 Swing Device
— Outline
— Swing Reduction Gear
— Swing Motor
— Swing Parking Brake
— Valve Unit
— Operation
– Group 3 Control Valve
— Outline
— Hydraulic Circuit
— Main Relief Valve
— Overload Relief Valve (with Make-Up Function)
— 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
— Disconnect 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)
– Group 13 Others (Undercarriage)
— Swing Bearing
— Center Joint
— Slip Ring
— Cylinder
SERVICE MANUAL REVISION REQUEST FORM