All-Inclusive Factory Service Technical manual for Hitachi Wheel Loaders Models Zaxis ZW370.

This manual will assist you in troubleshooting, and operating for your wheel loader.

Covered Models:
   Zaxis ZW370

The manual comprises 3 documents, including two Troubleshooting Manuals, and the Operational Principle Manual

1. Troubleshooting Manual (TT97C5-E-02)
Format: PDF, 113 pages
Language: English
Table of Contents:
   Troubleshooting
   01
      Error code (for chassis) 01-35
      Error code (for engine) 01-38
      Air conditioner 01-44
      Cautions Regarding Troubleshooting
      How to Use Quick Troubleshooting Table
      Safety Precautions
      Torque Converter and Transmission Group
      Hydraulic Group
      Brake Group
      Electrical Group
      Operator Station Group
      MEMO
   Measurement for Performance Check
   03
      Cautions on Safety 03-2
      Standard Measurement Values for Performance Check 03-3
      Preparation for Performance Check 03-6
      Engine 03-8
      Clutch Oil Pressure and Time Lag 03-12
      Hydraulic Cylinder 03-15
      Boom Cycle Time 03-17
      Full Steering Time 03-19
      Loading/Steering Circuit Relief Valve 03-21
      Stop Valve 03-32
      Fan Revolution 03-33
      Service Brake 03-34
      Parking Brake 03-35
      Brake Circuit Oil Pressure 03-36
      Accumulator Circuit Charging Time 03-41
      Number of Brake Pedal Applications 03-43
      Declutch Engagement 03-44
      Cautions on Safety
      Standard Measurement Values for Performance Check
      Preparation for Performance Check
      Engine
      Clutch Oil Pressure and Time Lag
      Hydraulic Cylinder
      Boom Cycle Time
      Full Steering Time
      Loading/Steering Circuit Relief Valve
      Stop Valve
      Fan Revolution
      Service Brake
      Parking Brake
      Brake Circuit Oil Pressure
      Accumulator Circuit Charging Time
      Number of Brake Pedal Applications
      Declutch Engagement
      MEMO

2. Troubleshooting Manual (TT97C5-E-00)
Format: PDF, 160 pages
Language: English
Table of Contents:
   Troubleshooting
      Cautions Regarding Troubleshooting
      How to Use Quick Troubleshooting Table
      Safety Precautions
      Torque Converter and Transmission Group
      Hydraulic Group
      Brake Group
      Electrical Group
      Operator Station Group
   Measurement for Performance Check
      Cautions on Safety
      Standard Measurement Values for Performance Check
      Preparation for Performance Check
      Engine
      Clutch Oil Pressure and Time Lag
      Hydraulic Cylinder
      Boom Cycle Time
      Full Steering Time
      Loading/Steering Circuit Relief Valve
      Stop Valve
      Fan Revolution
      Service Brake
      Parking Brake
      Brake Circuit Oil Pressure
      Accumulator Circuit Charging Time
      Number of Brake Pedal Applications
      Declutch Engagement
   Drawing and Diagrams
      Axle Assembly
      Torque Converter and Transmission
      Hydraulic and Brake Circuit
      Brake Circuit
      Electrical Wiring Diagram (S/N 9001~9048)
      Electrical Wiring Diagram (S/N 9049~9250)
      Electrical Wiring Diagram (S/N 9251~)
      Electrical Wiring Diagram
      Electrical wiring diagram abbreviation chart
      Electrical Connection Diagram (S/N 9001~9250)
      Electrical Connection Diagram (S/N 9251~)
      Electrical Wiring Diagram (CAB)
      Electrical Wiring Diagram (Cabin Air Conditioner)
      Electrical Circuit Diagram (Cabin Air Conditioner)
      Equipment Operation Table (Cabin Air Conditioner)
      Electrical Equipment Layout
      Electrical Equipment Layout (K-Lever)
      Outline of MODM (Machine Operation Diagnostic Module) Operation
      MODM: Input/Output Monitor - Input/Output Signal Correspondence Table
   Maintenance Log
   Notes

3. Operational Principle Manual (TO97C5-E-02)
Format: PDF, 593 pages
Language: English
Table of Contents:
   General Information
      How to Use Manual
      Outline
   Measurement for Performance Check
      Cautions on Safety
      Standard Measurement Values for Performance Check
   Function and Structure Chassis Group
      Front Chassis
      Rear Chassis
      Center Pin
   Check and Adjustment Chassis Group
      Linkage Pin
      Center Pin
   Function and Structure Power Group
      Power Line
      Engine / Transmission
      Radiator (S/N 9001~9150)
      Radiator (S/N 9151~)
      Propeller Shaft
      Axle Assembly
      Axle Support
      Torque Proportioning Type Differential Gear (TPD)
      Limited Slip Differential (LSD) (option)
   Check and Adjustment Power Group
      Engine
      Propeller Shaft
      Axle
   Function and Structure Torque Converter and Transmission Group
      Torque Converter
      Torque Converter (Lock-up) (Option)
      Torque Converter Gear Pump
      Transmission
      Clutch Pack
      Power Flow Path in the Transmission
      Hydraulic System Diagram
      Hydraulic Circuit Diagram
      Oil Flow
      T/C and T/M Oil Circulation
      Modulator Valve Unit
      Control Valve Assembly
   Check and Adjustment Torque Converter and Transmission Group
      Clutch Oil Pressure and Time Lag
   Function and Structure Hydraulic Group
      Flushing Hydraulic Circuit
      Cautions on Hydraulic Parts Replacement
      Hydraulic Circuit Symbols
      Hydraulic System Operation
      Layout of Hydraulic Units
      Hydraulic Tank
      Hydraulic Pump
      Hydraulic Cylinder
      Loading System
      Reducing Valve (for Pilot Pressure)
      Pilot valve (S/N 9001~9250)
      Pilot valve (S/N 9251~9255)
      Pilot valve (S/N 9256~)
      Multiple Control Valve (KML35A/2T003B)
      Adapter (Orifice)
      Ride Control (OPT)
      Steering System
      Orbitrol
      Steering Valve (KVS32-A4.0/20)
      Stop Valve
      Reducing Valve (for Orbitrol)
      Steering Line Filter
      K-Lever (OPT)
      Efficient Loading System
      Fan Motor System
      Fan Motor Line
      Reversing Fan Motor Line (OPT)
      Secondary Steering
   Check and Adjustment Hydraulic Group
      Loading/Steering Circuit Relief Valve/Ride Control Circuit Reducing Valve (OPT)
      Hydraulic Cylinder
      Stop Valve
   Function and Structure Brake Group
      Brake System Outline
      Brake Units Layout
      Unloader Valve
      Valve Unit
      Accumulator
      Brake Valve
      Service Brake
      Parking Brake
      Parking Brake Manual Release
      Brake Circuit Check Valve
      Auto Brake
      Pressure Sensor (for stop lamp and declutch)
   Check and Adjustment Brake Group
      Brake Circuit Oil Pressure
      Service Brake
      Parking Brake
   Function and Structure Electrical Group
      How to Use Electrical Wiring Diagram
      Utilisation des schmas des cblages lectriques (FRANAIS)
      Verwendung des elektrischen Schaltplans (DEUTSCH)
      Modalit di utilizzo dello schema dei collegamenti elettrici (ITALIANO)
      Cmo utilizar un Diagrama de Alambrado Elctrico (ESPAOL)
      Como Utilizar o Diagrama de Ligaes Elctricas (PORTUGUS)
      Electrical Cable Color Codes
      Electrical Circuit Symbols
      Sensor Mount
      Fuse
      Engine Start Circuit
      Power Generating/Charging Circuit
      ECM (Engine Controller)
      Transmission Control Circuit and Monitor Circuit
      Instrument Panel and Switch
      MODM
      Electrical Detent Circuit
      Diode
   Function and Structure Operator Station Group
      Cabin
      Operator Seat
      Steering and Transmission Shift Lever
      Air Conditioner
   Check and Adjustment Operator Station Group
      Air Conditioner
   Drawing and Diagrams
      Axle Assembly
      Torque Converter and Transmission
      Hydraulic and Brake Circuit (S/N 9001~9250)
      Hydraulic and Brake Circuit (S/N 9251~)
      Brake Circuit
      Electrical Wiring Diagram (1/3) (S/N 9001~9048)
      Electrical Wiring Diagram (2/3) (S/N 9001~9048)
      Electrical Wiring Diagram (3/3) (S/N 9001~9048)
      Electrical Wiring Diagram (1/3) (S/N 9049~9250)
      Electrical Wiring Diagram (2/3) (S/N 9049~9250)
      Electrical Wiring Diagram (3/3) (S/N 9049~9250)
      Electrical Wiring Diagram (1/3) (S/N 9251~9350)
      Electrical Wiring Diagram (2/3) (S/N 9251~9350)
      Electrical Wiring Diagram (3/3) (S/N 9251~9350)
      Electrical Wiring Diagram (1/3) (S/N 9351~)
      Electrical Wiring Diagram (2/3) (S/N 9351~)
      Electrical Wiring Diagram (3/3) (S/N 9351~)
      Electrical Wiring Diagram
      Electrical wiring diagram abbreviation chart
      Electrical Wiring Diagram (CAB)
      Electrical Connection Diagram (1/2) (S/N 9001~9250)
      Electrical Connection Diagram (2/2) (S/N 9001~9250)
      Electrical Connection Diagram (1/2) (S/N 9251~9350)
      Electrical Connection Diagram (2/2) (S/N 9251~9350)
      Electrical Connection Diagram (1/2) (S/N 9351~)
      Electrical Connection Diagram (2/2) (S/N 9351~)
      Electrical Wiring Diagram (Cabin Air Conditioner)
      Electrical Circuit Diagram (Cabin Air Conditioner)
      Equipment Operation Table (Cabin Air Conditioner)
      Electrical Equipment Layout
      Electrical Equipment Layout (K-Lever)
      Outline of MODM (Machine Operation Diagnostic Module) Operation
      MODM: Input/Output Monitor - Input/Output Signal Correspondence Table