Description

Hitachi ZX200-3, ZX240-3, ZX270-3 Excavator Service Manual

The manual is applicable for the Hitachi ZX200-3, ZX240-3, ZX270-3Excavator Model

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

Training Text for Model ZX200-3, ZX240-3, ZX270-3:

Troubleshooting Manual – 603 Pages
Operation Manual – 375 Pages
Maintenance Manual – 143 Pages

Table of Content of the Troubleshooting Manual

CONTENTS
Group 1 Introduction
Operational Performance Tests …………….T4-1-1
Preparation for Performance Tests ………..T4-1-2
Group 2 Standard
ZX200-3 Class Operational
Performance Standard Table ………………T4-2-1
ZX240-3 Class Operational
Performance Standard Table ………………T4-2-5
ZX270-3 Class Operational
Performance Standard Table …………….T4-2-10
Main Pump P-Q Diagram……………………T4-2-16
Sensor Activating Range ……………………T4-2-18
Group 3 Engine Test
Engine Speed…………………………………….T4-3-1
Engine Compression Pressure ……………..T4-3-3
Valve Clearance …………………………………T4-3-4
Lubricant Consumption………………………..T4-3-7
Group 4 Excavator Test
Travel Speed ……………………………………..T4-4-1
Track Revolution Speed……………………….T4-4-2
Mistrack Check…………………………………..T4-4-3
Travel Parking Leakage……………………….T4-4-4
Swing Speed ……………………………………..T4-4-5
Swing Function Drift Check ………………….T4-4-6
Swing Motor Leakage ………………………….T4-4-8
Maximum Swingable Slant Angle …………T4-4-10
Swing Bearing Play……………………………T4-4-12
Hydraulic Cylinder Cycle Time …………….T4-4-14
Dig Function Drift Check…………………….T4-4-16
Control Lever Operating Force ……………T4-4-18
Control Lever Stroke………………………….T4-4-20
Combined Operation of
Boom Raise / Swing Function Check ….T4-4-22
Combined Operation of Boom Raise
/ Arm Roll-In Function Check …………….T4-4-24

This is only an extract of the Table of content and not the whole table.

Hitachi ZAXIS ZX200-3, ZX240-3, ZX270-3 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.

The control valve controls the pressure, flow rate, and flow direction in the hydraulic circuit.
The major parts are main relief valve, overload relief valve, flow combiner valve, anti-drift valve, flow control valve, regenerative valve, digging regenerative valve, boom lower meter-in cut valve, auxiliary combining valve, bypass shut-out valve and spools. The spools are operated by pilot oil pressure.
As for the spools, in the 4-spool section, right travel, bucket, boom 1 and arm 2 are arranged in that order as viewed from the machine front. In the 5-spool section, left travel, auxiliary, boom 2, arm 1 and swing are arranged in that order as viewed from the machine front.