Description

Hitachi ZW370-5B Wheel Loader Service Manual

The manual is applicable for the Hitachi ZW370-5B Wheel Loader Model

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

For Model ZW370-5B as mentioned above:

Service 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

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.

• Workshop Manual
• SECTION 1 GENERAL INFORMATION
  Group 1 Precautions for disassembling and
  Assembling
  Group 2 Tightening Torque
  Group 3 Painting
  Group 4 Bleeding Air from Hydraulic Oil Tank
  SECTION 2 UPPERSTRUCTURE
  Group 1 Cab
  Group 2 Counterweight
  Group 3 Main Frame
  Group 4 Pump Device
  Group 5 Control Valve
  Group 6 Swing Device
  Group 7 Pilot Valve
  Group 8 Pilot Shut-Off Valve
  Group 9 Signal Control Valve
  Group 10 Travel Shockless Valve
  Group 11 Solenoid Valve
  Group 12 Pilot Relief Valve
  Group 13 Steering Valve
  Group 14 Brake Valve
  Group 15 Accumulator Charging Valve
  Group 16 Transmission Control Valve
  SECTION 3 UNDERCARRIAGE
  Group 1 Swing Bearing
  Group 2 Travel Motor
  Group 3 Center Joint
  Group 4 Transmission
  Group 5 Axle
  Group 6 Axle Lock Cylinder
  Group 7 Operate-Check Valve
  Group 8 Propeller Shaft
  SECTION 4 FRONT ATTACHMENT
  Group 1 Front Attachment
  Group 2 Cylinder
  Group 3 Hose-Rupture Safety Valve
  Group 4 Operate-Check Valve
  SECTION 5 ENGINE

  Service Manual (Troubleshooting)
  SECTION 4 OPERATIONAL PERFORMANCE
  TEST
  Group 1 Introduction
  Group 2 Standard
  Group 3 Engine Test
  Group 4 Excavator Test
  Group 5 Component Test
  Group 6 Adjustment
  SECTION 5 TROUBLESHOOTING
  Group 1 General
  Group 2 Component Layout
  Group 3 Troubleshooting A
  Group 4 Troubleshooting B
  Group 5 Troubleshooting C
  Group 6 Electrical System Inspection
  Group 7 ICX