Description

Hitachi ZW220-5A, ZW220-5B Wheel Loader Service Manual

The manual is applicable for the Hitachi ZW220-5A, ZW220-5B Wheel Loader Model

Format: PDF
Language: English
Service Manual consists of the following:

For Model ZW220-5A as mentioned above:

Service Manual (Troubleshooting) : Vol. No.TTNEJ-EN (436 Pages)
Workshop Manual : Vol. No.WNEJ-EN (782 Pages)
Circuit diagram: 23 Pages

For Model ZW220-5B as mentioned above:

Service Manual (Troubleshooting) : Vol. No.TTNEE-EN-00 (500 Pages)
Operation Manual : Vol. No.TONEE-EN-00 (467 Pages)
Workshop Manual : Vol. No.WNEE-EN-00 (790 Pages)
Circuit diagram: 28 Pages

Table of Content of the Workshop Manual

SECTION 1 GENERAL INFORMATION
Group 1 Precautions for Disassembling and Assembling
Group 2 Tightening
Group 3 Painting
Group 4 Bleeding Air
Group 5 Pressure Release Procedure
Group 6 Preparation
SECTION 2 MAINTENANCE STANDARD
Group 1 Body
Group 2 Front Attachment
SECTION 3 BODY
Group 1 Cab
Group 2 Counterweight
Group 3 Center Hinge
Group 4 Engine
Group 5 Radiator Assembly
Group 6 Hydraulic Oil Tank
Group 7 Fuel Tank
Group 8 Pump Device
Group 9 Control Valve
Group 10 Pilot Valve
Group 11 Brake Charge Valve
Group 12 Manifold Valve
Group 13 Solenoid Valve
Group 14 Flow Regulator Valve
Group 15 Cooling Fan System
Group 16 Muffler Filter
Group 17 Ride Control Accumulator
Group 18 Battery Disconnect Switch

Table of Content of the Technical Manual

SECTION 4 OPERATIONAL
PERFORMANCE TEST
Group 1 Introduction
Group 2 Standard
Group 3 Engine Test
Group 4 Excavator Test
Group 5 Component Test
SECTION 5 TROUBLESHOOTING
Group 1 Diagnosing Procedure
Group 2 Monitor
Group 3 e-Service
Group 4 Component Layout
Group 5 Troubleshooting A
Group 6 Troubleshooting B
Group 7 Air Conditioner

Table of Content of the Operation Manual

SECTION 1 GENERAL
Group 1 Specifications
Group 2 Component Layout
Group 3 Component Specifications
SECTION 2 SYSTEM
Group 1 Controller
Group 2 Control System
Group 3 ECM System
Group 4 Hydraulic System
Group 5 Electrical System
SECTION 3 COMPONENT OPERATION
Group 1 Pump Device
Group 2 Control Valve
Group 3 Cooling Fan System
Group 4 Steering Pilot Valve
Group 5 Steering Valve
Group 6 Pilot Valve
Group 7 Charging Circuit
Group 8 Drive Unit
Group 9 Axle
Group 10 Brake Valve
Group 11 Others

Manual guide composition

Hitachi ZAXIS ZW220-5A, ZW220-5B service manual consists of the Troubleshooting and the Workshop Manual.

• Information included in the Service Manual: Technical information needed for redelivery and delivery, operation and activation of all devices and systems, operational performance tests, and troubleshooting procedures.
• Information included in the Workshop Manual: Technical information needed for maintenance and repair of the machine, tools and devices needed for maintenance and repair, maintenance standards, and removal / installation and assemble / disassemble procedures.

MC is used in order to control the machine operations.
The signals from the accelerator pedal sensor, various sensors, and switches are sent to MC and processed in the logic circuit.
MC sends the signals equivalent to the target engine speed to ECM by using CAN communication in order to control the engine. (Refer to SYSTEM / ECM System.) In addition, MC drives the solenoid valve unit and the torque control solenoid valve in order to control the pump and the valve.
TCU is used in order to control the machine travel operations. The signals from the shift switch, forward/ reverse lever, forward/reverse switch, forward/reverse selector switch, and transmission are sent to TCU and processed in the logic circuit.
TCU activates the forward/reverse clutch solenoid valve and speed shift solenoid valve, and controls the transmission.