Technical Manual Hitachi ZW220-7 Wheel Loader | TTNUD50-EN-00 (2021.01.28)

Technical Manual Hitachi ZW220-7 Wheel Loader TTNUD50-EN-00 (2021.01.28) (Preview)

TTNUD50-EN-00(1)(20210128)
TTNUD50-EN-00
INTRODUCTION
SYMBOL AND ABBREVIATION
SAFETY
CONTRASTING LIST OF PART NAME
SECTION AND GROUPCONTENTS
SECTION 4OPERATIONAL PERFORMANCE TEST
Group 1 Introduction
Operational Performance Tests
Preparation for Performance Tests
Group 2 Standard
Operational Performance Standard Table
Main Pump P-Q Diagram
Sensor Activating Range
Group 3 Engine Test
Engine Speed
Lubricant Consumption
Group 4 Machine Performance Test
Travel Speed
Service Brake Function Check
Service Brake Wear Amount
Parking Brake Function Check
Bucket Stopper and Bell Crank StopperClearance
Hydraulic Cylinder Cycle Time
Dig Function Drift Check
Bucket Levelness
Control Lever Operating Force
Control Lever Stroke
Group 5 Component Test
Primary Pilot Pressure (Including BrakeCircuit)
Secondary Pilot Pressure
Solenoid Valve Set Pressure
Main Pump Delivery Pressure
Main Relief Set Pressure
Steering Relief Pressure
Overload Relief Valve Set Pressure
Main Pump Flow Rate Measurement
Service Brake Pressure (Front and Rear)
Parking Brake Release Pressure
Brake Accumulator Pressure
Brake Warning Pressure (Pressure-Decreasing)
Brake Warning Pressure (Pressure-Increasing)
Transmission Clutch Pressure
Torque Converter Pressure (Inlet)
Group 6 Adjustment
How to Connect MPDr.
Engine Output Restriction Suspend
Rewrite of Aftertreatment Device Serial No.
Filter Maintenance
How to Check Manual Regeneration Switch
Clean DEF Tank
Remedy when Mixing Oil in DEF Tank
Calibration of Aerial Angle
TTNUD50-EN-00(2)(20210128)
SECTION 5TROUBLESHOOTING
Group 1 Diagnosing Procedure
Introduction
Diagnosis Procedure
Electrical System Inspection
Precautions for Inspection and Maintenance
Instructions for Disconnecting Connectors
Fuse Inspection
Fusible Link Inspection
Battery Voltage Check
Alternator Check
Continuity Check
Voltage and Current Measurement
Check by False Signal
Test Wire Harness
Removal of ECM (Engine Controller)
Installation of ECM (Engine Controller)
Removal of MC (Main Controller)
Installation of MC (Main Controller)
Removal of TCU (Transmission Controller)
Installation of TCU (Transmission Controller)
Removal of PLCU (Safety Controller)
Installation of PLCU (Safety Controller)
Removal of Aerial Angle Controller
Installation of Aerial Angle Controller
Removal of Monitor Controller
Installation of Monitor Controller
Group 2 Monitor
Outline
Operating Procedures of Service Menu
Engine Tachometer
DEF Level Gauge
Coolant Temperature Gauge
Group 3 e-Service
Outline
List of Operation Data
Snapshot Data
Communication System
Group 4 Component Layout
Main Component (Overview)
Main Component
Electrical System (Overview)
Air Cleaner and Radiator Assembly
Battery Box
Hydraulic Oil Tank
Fuel Tank
Drive Unit
Front Axle
Cab
Engine
Aftertreatment Device
Fan Valve
Pump Device
Control Valve
Manifold Valve
Brake Charge Valve
Parking Brake Solenoid Valve
Steering Valve (with Emergency SteeringCheck Block)
4-Spool Solenoid Valve Unit
2-Spool Solenoid Valve Unit
Emergency Steering Pump
DEF Tank
DEF Supply Module
Joystick Steering Hydraulic ComponentLayout
Group 5 Troubleshooting A
Troubleshooting A (Base Machine DiagnosisBy Using Fault Codes) Procedure
JCU Fault Codes 59004, 59005
JCU Fault Codes 57022, 57021, 57020
JCU Fault Code 57026
JCU Fault Code 57027
Group 6 Troubleshooting B
Troubleshooting B (Machine Diagnosis byUsing Trouble Symptom) Procedure
Relationship between Machine TroubleSymptoms and Related Parts
Correlation between Trouble Symptoms andPart Failures
Engine System Troubleshooting
All Actuator System Troubleshooting
Front Attachment System Troubleshooting
Steering System Troubleshooting
Travel System Troubleshooting
Brake System Troubleshooting
Other System Troubleshooting
Exchange Inspection Method
Air Bleeding Procedures for Brake (Axle)
Group 7 Air Conditioner
Outline
Functions of Main Parts
Troubleshooting
Air Conditioner Controller Fault Code List
Air Conditioner Controller Fault Codes 11 to 22
Air Conditioner Controller Fault Codes 43 to 57
Work after Replacing Components
Refill Compressor Oil
Charge Air Conditioner with Refrigerant
Hose and Pipe Tightening Torque
SERVICE MANUAL REVISION REQUEST FORM
The Attached Diagram List