Hitachi ZW370-5B Wheel Loader Repair Manuals

Service Repair Manual (Troubleshooting) : Vol. No.TTNHE-EN-00 (466 Pages)
Operation Manual : Vol. No.TONHE-EN-00 (453 Pages)
Workshop Manual : Vol. No.WNHE-EN-00 (689 Pages)
Circuit diagram: 16 Pages
Hitachi ZW370-5B Wheel Loader Service Manual
The manual is applicable for the Hitachi ZW370-5B Wheel Loader Model
Service Manual consists of the following:
For Model ZW370-5B as mentioned above:
Service Manual (Troubleshooting) : Vol. No.TTNHE-EN-00 (466 Pages)

Table of Content of the Workshop Manual

SECTION 1 GENERAL

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 Unloader Valve
Group 12 Combination Valve
Group 14 Flow Regulator Valve
Group 15 Cooling Fan System
Group 16 Exhaust Filter
Group 17 Ride Control Valve and 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 Machine Performance 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
Hitachi ZAXIS ZW370-5B 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.

Washer Circuit
NOTE: The operation of front washer is explained here.

1. While front wiper/washer switch (8) is pushed, current from column display controller (14) terminal #2-16 flows to terminal #6 in front wiper/washer switch (8) through diode H (17), bridges within switch (8) to terminal 1, and connects to ground.

2. Current from fuse #8 in fuse box B (2) flows to the coil in front washer relay (7), flows to terminal #6 in front wiper/washer switch (8) through diode H (17), bridges within switch (8) to terminal 1, and connects to ground.

3. Therefore, front washer relay (7) is turned ON.
4. When front washer relay (7) is turned ON, current from fuse #8 in fuse box B (2) flows to front washer motor (6) and operates the front washer.