Hitachi ZX40U-3 40U-3F 50U-3 50U-3F Hydraulic Excavator Workshop Manual – PDF DOWNLOAD

Description

Hitachi ZX40U-3 40U-3F 50U-3 50U-3F Hydraulic Excavator Workshop Manual

FILE DETAILS:

Hitachi ZX40U-3 40U-3F 50U-3 50U-3F Hydraulic Excavator Workshop Manual

Language : English
Pages : 274
Downloadable : YES
Format : PDF

DESCRIPTION:

Hitachi ZX40U-3 40U-3F 50U-3 50U-3F Hydraulic Excavator Workshop Manual

INTRODUCTION:

TO THE READER:
• This manual is written for an experienced technician to provide technical information needed to maintain and repair this machine.
• Be sure to thoroughly read this manual for correct product information and service procedures.
• If you have any questions or comments, at if you found any errors regarding the contents of this manual, please contact using “Service Manual Revision Request Form” at the end of this manual.

ADDITIONAL REFERENCES:

• Please refer to the materials listed below in addition to this manual.
• The Operator’s Manual
• The Parts Catalog
• The Engine Manual
• Parts Catalog of the Engine
• Hitachi Training Material

MANUAL COMPOSITION:
• This manual consists of three portions: the Technical Manual (Operational Principle), the Technical Manual (Troubleshooting) and the Workshop Manual.
• Information included in the Technical Manual (Operational Principle): technical information needed for redelivery and delivery, operation and activation of all devices and systems.
• 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.

TABLE OF CONTENTS:

Hitachi ZX40U-3 40U-3F 50U-3 50U-3F Hydraulic Excavator Workshop Manual

SECTION 1
GENERAL
Group 1 Specification
Specifications T1-1-1
Working Ranges and Machine
Dimensions for Transportation T1-1-4
Group 2 Component Layout
Main Component T1-2-1
Electrical System T1-2-2
Relays T1-2-3
Monitor and Switches T1-2-4
Solenoid Valve Unit T1-2-4
Group 3 Component Specifications
Engine T1-3-1
Engine Accessories T1-3-4
Hydraulic Component T1-3-5
Filter T1-3-7
Electrical Component T1-3-8
SECTION 2
SYSTEM
Group 1 Hydraulic System
Outline T2-1-1
Pilot Circuit T2-1-2
Main Circuit T2-1-6
Group 2 Electrical System
Outline T2-2-1
Power Circuit
(key Switch : OFF) T2-2-2
Indicator Light Check Circuit/Accessory Circuit
(Key Switch : ON) T2-2-4
Preheat Circuit (Key Switch : ON) T2-2-6
Starting Circuit (Key Switch : START) T2-2-8
Charging Circuit (Key Switch : ON) T2-2-10
Engine Stop Circuit (Key Switch : OFF)T2-2-11
SECTION 3
COMPONENT OPERATION
Group 1 Pump Device
Outline T3-1-1
Main Pump P1 T3-1-4
Power Control T3-1-5
Flow Rate Control T3-1-6
PS Valve T3-1-7
Group 2 Revolution Sensing Valve
Outline T3-2-1
Operation T3-2-4
Group 3 Swing Device
Outline T3-3-1
Swing Motor T3-3-2
Parking Brake T3-3-3
Valve UnitT3-3-4
Swing Reduction Gear T3-3-6
Group 4 Control Valve
Outline T3-4-1
Hydraulic Circuit T3-4-6
Main Relief Valve T3-4-8
Overload Relief Valve T3-4-9
Make-Up Valve T3-4-10
Main Shut-Off Valve T3-4-12
Boom Anti-Drift Valve T3-4-14
Unload Valve T3-4-16
Differential Reducing Valve T3-4-18
Pressure Compensator T3-4-20
Variable Relief Valve T3-4-22
Group 5 Pilot Valve
OutlineT3-5-1
Operation T3-5-4
Group 6 Travel Device
OutlineT3-6-1
Travel Motor T3-6-2
Travel Brake Valve T3-6-3
Travel Reduction GearT3-6-8
Group 7 Others (Upperstructure)
Solenoid Valve Unit T3-7-1
Pilot Relief Valve T3-7-2
Group 8 Others (Undercarriage)
Swing BearingT3-8-1
Center JointT3-8-2
Track Adjuster T3-8-4
SECTION 4
OPERATIONAL PERFORMANCE TEST
Group 1 Introduction
Operational Performance Test T4-1-1
Preparation for Performance Tests T4-1-2
Group 2 Standard
Operational Performance Standard T4-2-1
Group 3 Engine Test
Engine Speed T4-3-1
Engine Compression Pressure T4-3-2
Valve Clearance T4-3-3
Nozzle Check T4-3-4
Injection Timing T4-3-6
Group 4 Excavator Test
Travel Speed T4-4-1
Track Revolution Speed T4-4-2
Mistrack Check T4-4-3
Travel Motor Leakage T4-4-4
Swing Speed T4-4-5
Swing Function Drift Check T4-4-6
Swing Motor Leakage T4-4-7
Maximum Swingable Slant Angle T4-4-8
Swing Bearing Play T4-4-9
Hydraulic Cylinder Cycle Time T4-4-10
Dig Function Drift T4-4-12
Control Lever Operating Force T4-4-13
Control Lever Stroke T4-4-15
Group 5 Component Test
Primary Pilot Pressure T4-5-1
Secondary Pilot Pressure T4-5-2
Main Relief Valve Set Pressure T4-5-4
Overload Relief Valve Set Pressure T4-5-8
Swing Motor Drainage T4-5-10
Travel Motor Drainage T4-5-12
Revolution Sensing Valve Output Pressure T4-5-14
Pump Delivery Pressure T4-5-16
Pump Driving Torque T4-5-18
SECTION 5
TROUBLESHOOTING
Group 1 Diagnosing Procedure
Introduction T5-1-1
Diagnosing Procedure T5-1-2
Group 2 Troubleshooting A
Troubleshooting A Procedure T5-2-1
Engine System Troubleshooting T5-2-2
Actuator Operating System
Troubleshooting T5-2-6
Front Attachment System
Troubleshooting T5-2-11
Swing System Troubleshooting T5-2-18
Travel System Troubleshooting T5-2-20
Blade System Troubleshooting T5-2-24
Boom Swing System Troubleshooting T5-2-26
Group 3 Troubleshooting B
Troubleshooting B Procedure T5-3-1
Malfunction of Coolant
Temperature Gauge T5-3-2
Malfunction of Fuel Gauge T5-3-4
Malfunction of Alternator Indicator T5-3-6
Malfunction of Engine Oil Pressure
Indicator T5-3-7
Malfunction of Overheat Indicator T5-3-8
Malfunction of Fuel Level Indicator T5-3-9
Malfunction of Buzzer T5-3-10
Malfunction of Hour Meter T5-3-11
Group 4 Electrical System Inspection
Precautions for Inspection and
MaintenanceT5-4-1
Fuse Continuity Test T5-4-3
Battery Voltage Check T5-4-4
Voltage CheckT5-4-5
Continuity CheckT5-4-6

HITACHI ZX40U-3 40U-3F 50U-3 50U-3F HYDRAULIC EXCAVATOR WORKSHOP MANUAL – PDF DOWNLOAD:

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