Technical Manual Hitachi ZX130-7H Hydraulic Excavator | TODHD60-EN-00

Technical Manual Hitachi ZX130-7H Hydraulic Excavator TODHD60-EN-00 (Preview)

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
CONTRASTING LIST OF PART NAME
– Contrasting List of Part Name between Technical Manual and Parts Catalog
SECTION AND GROUP CONTENTS
CONTENTS
GENERAL
– Specifications
— Specifications ZX130-7H
— Working Ranges ZX130-7H
– Component Layout
— Main Component (Upperstructure)
— Main Component (Undercarriage)
— Main Component (Front Attachment)
— Main Component (Blade) (Option)
— Electrical System (Overview)
— Electrical System (Rear Tray)
— Electrical System (Switches)
— Electrical System (Utility Space)
— Electrical System (Relays)
— Engine Oil Monitoring Sensor
— Hydraulic Oil Monitoring Sensor
— Engine
— Aftertreatment Device
— Pump Device
— Pump Device (With Blade Pump) (Option)
— Around Pump Device
— Control Valve
— Signal control valve
— Swing Device
— Travel Device
— 4-Spool Solenoid Valve Unit
— 2-Spool Solenoid Valve Unit
— Maximum Pump 1 Flow Rate Limit Control Solenoid Valve
— Layout of Attachment Spec. Parts
— Around Control Valve
— Control Valve Lower Side
— Breaker Relief Solenoid Valve
— Accumulator
— Auxiliary Control Solenoid Valve Unit
– Component Specifications
— Specifications of Engine
— Specifications of Engine Accessories
— Specifications of Hydraulic Component
— Specifications of Hydraulic Component (Blade)
— Specifications of Electrical Component
SYSTEM
– Controller
— Outline of Controller
— CAN Circuit
– Control System
— Outline of Control System
— Engine Control
— Engine Control System Layout
— Engine Protection Control
— Engine Control Dial Control
— ECO Control
— Power Mode (ECO/PWR/HP Mode) Switch Control
— ECO Mode Control
— HP Mode Control
— Travel HP Mode Control
— Auto-Idle Control
— Hydraulic Oil Temperature Auto Warming-Up Control
— Radiator Coolant Temperature Auto Warming-Up Control
— Idle Speed-Up Control
— Idle Speed-Up Control (at Engine Start)
— Engine Speed Slow Down Control
— Heater Control
— One-Touch Idle Control
— Attachment Operation Speed Increase Control (Option)
— Attachment Operation Speed Limit Control (Option)
— Pump Control
— Pump Control System Layout
— Speed Sensing Control
— Pump Torque Decrease Control (Radiator Coolant Temperature)
— Pump Torque Decrease Control (Hydraulic Oil Temperature)
— Travel Torque-Up Control
— Pump Torque Restriction Control (During Engine Output Restriction)
— Pump 1 Flow Rate Control
— Pump 2 Flow Rate Control
— Pump 1 Flow Rate Limit Control (Option)
— Pump 2 Flow Rate Limit Control (Option)
— Valve Control (Standard)
— Valve Control (Standard) System Layout
— Power Digging Control
— Auto-Power Lift Control
— Travel Motor Displacement Angle Control
— Arm Regenerative Control
— Digging Regenerative Control
— Arm 2 Flow Rate Control
— Aftertreatment Device Manual Regeneration Control
— Aftertreatment Device Auto Regeneration Control
— Valve Control (Option)
— Valve Control (Option) System Layout
— Attachment Flow Rate Control
— Auxiliary Flow Combiner Control
— Breaker 1 (HSB Breaker) Control
— Auxiliary Overload Relief Valve Pressure Control
— Other Control
— Work Mode Control
— Auto Shut-Down Control
— Automatic Engine Stop Control at Low Temperature
— Hydraulic Oil Overheat Alarm Control
— Breaker Alarm Control (Option)
— Travel Alarm Control (Option)
— Swing Buzzer and Lights Control (Option)
— Overload Alarm Control (Option)
– Engine System
— Outline of ECM System
— Fuel Injection Control
— Fuel Injection Amount Control
— Fuel Injection Timing Control
— Fuel Injection Rate Control
— Fuel Injection Pressure Control
— Fuel Injection Amount Correction Control
— EGR Control
— Preheating Control
— Variable Turbocharger Control
— Alarm Control
— Urea SCR System
— DEF Injection Control
— Start-Up Control
— DEF Defrosting Control
— DEF Thermal Control
— After-Run Control
— Engine Output Restriction Control (INDUCEMENT)
— Insufficient DEF Level
— Malfunction of Urea SCR System/Malfunction of EGR System
— Outline of Aftertreatment Device
— Operation of Aftertreatment Device
— Aftertreatment Device Regeneration Control
– Hydraulic System
— Outline of Hydraulic System
— Pilot Circuit of Hydraulic System
— Operation Control Circuit
— Pump Control Circuit (Refer to “COMPONENT OPERATION/Pump Device”.)
— Aftertreatment Device Regeneration Control Circuit (Refer to SYSTEM/Control System.)
— Valve Control Circuit (Refer to COMPONENT OPERATION/Control Valve, Travel Device.)
— Travel Motor Displacement Angle Control Circuit (Refer to COMPONENT OPERATION/Travel Device.)
— Swing Parking Brake Release Circuit (Refer to “COMPONENT OPERATION/Swing Device”.)
— Main Circuit of Hydraulic System
— Neutral circuit
— Single Operation Circuit
— Relief Circuit
— Combined Operation Circuit
— Flow Combiner Circuit
— Digging Regenerative Circuit
— Arm Regenerative Circuit
— Bucket Regenerative Cut Circuit
— Boom Lower Meter-In Cut Control
— Boom Cylinder Bottom Pressure: High (With the Front Attachment above the Ground)
— Boom Cylinder Bottom Pressure: Low (With Track Raised off the Ground)
— Blade Circuit (Neutral Circuit)
— Blade Single Operation Circuit
— Breaker/Pulverizer/Crusher Circuit of Hydraulic System (Option)
— Auxiliary Flow Combiner Circuit
— When Performing Single Operation of Auxiliary Flow Combiner Circuit
— When Performing Combined Operation of Auxiliary Flow Combiner Circuit
— Breaker 1 (HSB Breaker) Circuit
– Electrical System
— Outline of Electrical System
— Main Circuit of Electrical System
— Electric Power Circuit (Key Switch: OFF)
— CAN Circuit
— Accessory Related Circuit (Key Switch: ACC Position)
— Starting Circuit (Key Switch: START)
— Charging Circuit (Key Switch: ON)
— Alternator Operation
— Regulator Operation
— 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
— Emergency Stop Circuit
— Monitor Circuit of Electrical System
— Security Circuit
— Aerial Angle Circuit
— Control Lever Automatic Pilot Shut-Off Circuit
— Seat Belt Reminder Circuit
— Radio Circuit
— Air Conditioner Circuit
— Accessory Circuit of Electrical System
— Work Light Circuit (Work Light: ON)
— Work Light Circuit (Work Light and Boom Light: ON)
— Wiper Circuit
— Washer Circuit
— Cab Light Circuit (Cab Light Switch: Door Interlocking Position (Key Switch: ON))
— Cab Light Circuit (Cab Light Switch: ON Position)
COMPONENT OPERATION
– Pump Device
— Outline of Pump Device
— Outline of Main Pump
— Operational Principle of Main Pump
— Increasing and Decreasing of Main Pump Delivery Flow Rate
— Outline of Regulator
— Regulator Control Function
— Control by Pump Control Pressure
— Control by Own and Partner Pump Delivery Pressure
— Control by Pilot Pressure from Torque Control Solenoid Valves
— Control by Pilot Pressure from Maximum Pump Flow Rate Limit Control Solenoid Valves (Pump Flow Rate Limit Control)
— Control by Pilot Pressure from Maximum Pump Flow Rate Limit Control Solenoid Valves (Pump Flow Rate Control)
— Flow Rate Increase Control by Pump Control Pressure
— Flow Rate Decrease Control by Pump Control Pressure
— Flow Rate Decrease Control by Own and Partner Pump Delivery Pressure
— Flow Rate Increase Control by Own and Partner Pump Delivery Pressure
— Flow Rate Decrease Control by Pilot Pressure from Torque Control Solenoid Valve
— Flow Rate Control by Pilot Pressure from Maximum Pump Flow Rate Limit Control Solenoid Valve
— Outline of Maximum Flow Rate Limit Control Solenoid Valve and Torque Control Solenoid Valve
— Operation of Maximum Flow Rate Limit Control Solenoid Valve and Torque Control Solenoid Valve
— Outline of Pilot Pump and Blade Pump (Option)
— Outline of Pump Delivery Pressure Sensor
— Outline of Pump Control Pressure Sensor
– Swing Device
— Outline of Swing Device
— Outline of Swing Reduction Gear
— Outline of Swing Motor
— Outline of Swing Parking Brake
— When Brake is Released of Swing Parking Brake
— When Brake is Applied of Swing Parking Brake
— Outline of Valve Unit
— Operation of Make-Up Valve
— Outline of Swing Relief Valve
— Operation of Swing Relief Valve
– Control Valve
— Outline of Control Valve
— Components in Control Valve
— Main Circuit of Control Valve
— Pilot Operation Control Circuit of Control Valve
— External Pilot Pressure Circuit of Control Valve
— Operation of Flow Combiner Valve
— Outline of Main Relief Valve
— Relief Operation of Main Relief Valve
— Pressure Increasing Operation of Main Relief Valve
— Outline of Overload Relief Valve (With Make-Up Function)
— Relief Operation of Overload Relief Valve
— Make-Up Operation of Overload Relief Valve
— Outline of Regenerative Valve
— Operation of Boom Regenerative Valve
— Operation When Performing Bucket Regenerative Operation
— Operation When Performing Bucket Regenerative Cut Operation
— Operation When Performing Arm Regenerative Operation
— Operation When Releasing Arm Regenerative Operation
— Outline of Anti-Drift Valve
— Holding Operation of Anti-Drift Valve
— Releasing Operation of Anti-Drift Valve
— Outline of Flow Rate Control Valve
— Normal Operation of Flow Rate Control Valve
— Flow Rate Control Operation of Flow Rate Control Valve
— Outline of Digging Regenerative Valve
— Operation of Digging Regenerative Valve
— Outline of Boom Lower Meter-In Cut Valve
— Operation of Boom Lower Meter-In Cut Valve (With the Track off the Ground)
— Operation of Boom Lower Meter-In Cut Valve (With the Front Attachment above the Ground)
— Outline of Auxiliary Flow Combiner Valve and Pump 1 Bypass Shut-Out Valve
— Operation of Auxiliary Flow Combiner Valve and Pump 1 Bypass Shut-Out Valve (During Single Operation)
— Operation of Auxiliary Flow Combiner Valve and Pump 1 Bypass Shut-Out Valve (During Combined Operation)
— Outline of Blade Control Valve
– Pilot Valve
— Outline of Pilot Valve
— Outline of Front Attachment/Swing Pilot Valve
— Outline of Travel Pilot Valve
— Outline of Auxiliary 1, Blade and Positioning Pilot Valves
— Operation of Front Attachment/Swing and Travel Pilot Valves
— When Front Attachment/Swing and Travel Pilot Valves are in Neutral (Output Curve: A to B)
— During Metering or Decompressing of Front Attachment/Swing and Travel Pilot Valves (Output Curve: C to D)
— Full Stroke of Front Attachment/Swing and Travel Pilot Valves (Output Curve: E to F)
— Operation of Auxiliary 1, Blade and Positioning Pilot Valves
— When Auxiliary 1, Blade and Positioning Pilot Valves are in Neutral (Output Curve: A to B)
— During Metering or Decompressing of Auxiliary 1, Blade and Positioning Pilot Valves (Output Curve: C to D)
— Outline of Shockless Function (Only Travel Pilot Valve)
— Operation of Shockless Function
– Travel Device
— Outline of Travel Device
— Outline of Travel Reduction Gear
— Outline of Travel Motor
— Operation of Travel Motor
— Outline of Parking Brake
— Operation of Parking Brake (When Parking Brake is Released)
— Operation of Parking Brake (When Parking Brake is Applied)
— Outline of Travel Brake Valve
— Operation of Counterbalance Valve (During Travel)
— Operation of Counterbalance Valve (When Descending a Slope)
— Outline of Travel Relief Valve
— Operation of Travel Relief Valve (During Relief)
— Operation of Travel Relief Valve (During Make-Up)
— Outline of Travel Mode Control
— Operation of Selecting Travel Mode (Slow Speed)
— Operation of Selecting Travel Mode (Fast Speed)
– Signal Control Valve
— Outline of Signal Control Valve
— Pilot Valve Side of Pilot Port
— Control Valve Side of Pilot Port
— Outline of Shuttle Valve
— Outline of Shockless Valve
— Operation of Shockless Valve (During Boom Raise Operation)
— Operation of Shockless Valve (During Boom Lower Operation or When Stopping Boom Raise Operation (Shock Reducing Operation))
— Operation of Pump 1 Flow Rate Control Valve and Pump 2 Flow Rate Control Valve
— Operation of Flow Combiner Valve Control Spool
— Operation of Swing Parking Brake Release Spool
— Operation of Bucket Flow Rate Control Valve Control Spool
– Others (Upperstructure)
— Outline of Pilot Shut-Off Solenoid Valve
— Pilot Shut-Off Lever: LOCK Position
— Pilot Shut-Off Lever: UNLOCK Position
— Outline of 4-Spool Solenoid Valve Unit
— Outline of 2-Spool Solenoid Valve Unit (For Aftertreatment Device Manual Regeneration Control)
— Outline of Maximum Pump 1 Flow Rate Limit Control Solenoid Valve
— Outline of Auxiliary Control Solenoid Valve Unit (Option)
— Outline of Proportional Solenoid Valve
— Operation of Proportional Solenoid Valve (When in Neutral)
— Operation of Proportional Solenoid Valve (When Excited)
— Outline of ON/OFF Solenoid Valve
— Operation of ON/OFF Solenoid Valve (when in Neutral)
— Operation of ON/OFF Solenoid Valve (When in Operation)
— Outline of Hose Rupture Valve
— Operation of Hose Rupture Valve (When Control Lever is in Neutral)
— Operation of Hose Rupture Valve (During Boom Lower Operation (Control Lever Stroke: Less than Half-Stroke))
— Operation of Hose Rupture Valve (During Boom Lower Operation (Control Lever Stroke: More than Half-Stroke))
— Outline of Pilot Relief Valve
— Outline of Recirculation Valve
— Outline of Selector Valve Control Valve (Option)
— Outline of Selector Valve Control Solenoid Valve
— Operation of Selector Valve Control Solenoid Valve (When in Neutral (Pulverizer or Crusher is Selected))
— Operation of Selector Valve Control Solenoid Valve (When in Operation (Breaker is Selected))
— Operation of Selector Valve (When in OFF (Pulverizer or Crusher is Selected))
— Operation of Selector Valve (When in ON (Breaker is Selected))
— Outline of Breaker Relief Solenoid Valve and Auxiliary Overload Relief Solenoid Valve
— Relief Operation of Breaker Relief Solenoid Valve and Auxiliary Overload Relief Solenoid Valve
– Others (Undercarriage)
— Outline of Swing Bearing
— Outline of Center Joint
— Outline of Track Adjuster (Front Idler Integrated Type)
SERVICE MANUAL REVISION REQUEST FORM