Hitachi Ex750-5 Ex800H-5 Hydraulic Excavator Technical Troubleshooting Manual – PDF DOWNLOAD

Description

Hitachi Ex750-5 Ex800H-5 Hydraulic Excavator Technical Troubleshooting Manual

FILE DETAILS:

Hitachi Ex750-5 Ex800H-5 Hydraulic Excavator Technical Troubleshooting Manual

Language : English
Pages : 209
Downloadable : YES
Format : PDF
Size :2.19 MB

DESCRIPTION:

Hitachi Ex750-5 Ex800H-5 Hydraulic Excavator Technical Troubleshooting 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 Technical Manual (Troubleshooting): technical information needed for 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.

TABLE OF CONTENTS:

Hitachi Ex750-5 Ex800H-5 Hydraulic Excavator Technical Troubleshooting Manual

SECTION 4
OPERATIONAL
PERFORMANCE TEST
Group 1 Introduction
Operational Performance Tests T4-1-1
Preparation for Performance Test T4-1-2
Group 2 Engine Test
Engine SpeedT4-2-1
Injector and Valve Clearance
Adjustment T4-2-3
Group 3 Excavator Test
Travel SpeedT4-3-1
Track Revolution Speed T4-3-2
Mistrack Check T4-3-3
Travel Parking Function CheckT4-3-4
Swing Speed T4-3-6
Swing Function Drift Check T4-3-7
Swing Motor LeakageT4-3-8
Maximum Swingable Slant AngleT4-3-9
Swing Bearing Play T4-3-10
Hydraulic Cylinder Cycle Time T4-3-12
Dig Function Drift Check T4-3-14
Control Lever Operating Force T4-3-15
Control Lever Stroke T4-3-16
Boom Raise / Swing Combined
Operation Check T4-3-17
Group 4 Component Test
Primary Pilot PressureT4-4-1
Secondary Pilot pressureT4-4-3
Swing Preference Circuit Shift Control
Pressure (MA Pressure) T4-4-4
Main Relief Pressure Shift Control
Pressure (SA Pressure) T4-4-5
Travel Mode Shift Control
Pressure (SB Pressure) T4-4-6
Main Relief Pressure T4-4-8
Overload Relief Valve Set PressureT4-4-12
Main Pump Flow Test T4-4-15
Swing Motor Drainage T4-4-20
Travel Motor Drainage T4-4-22
Group 5 Standard
Operational Performance
Standard Table T4-5-1
SECTION 5
TROUBLESHOOTING
Group 1 Diagnosing Procedure
Introduction T5-1-1
Diagnosing Procedure T5-1-2
Dr EX T5-1-4
Dr EX Start Up Procedure T5-1-4
Clearing the Self-Diagnosing
Function T5-1-5
Retrial “A” T5-1-5
Retrial “B” T5-1-6
Fault code ListT5-1-7
Monitoring FunctionT5-1-9
Group 2 Component Layout
Main Components T5-2-1
Electrical System Component (1) T5-2-2
Electrical System Component (2) T5-2-3
Electrical System Component (3) T5-2-4
Control ValveT5-2-6
Others T5-2-10
Group 3 Troubleshooting A
Troubleshooting A Procedure T5-3-1
Fault Code List T5-3-2
Fault Codes 01, 02, 03, 04, 06
(EC Failure) T5-3-4
Fault Code 05 (Communication
Failure between PVC and EC) T5-3-5
Fault Code 09, 10
(EC Sensor Failure) T5-3-6
Fault Code 11, 12 (Engine Control
Dial Failure)T5-3-7
Fault Code 13 (N Sensor Failure) T5-3-8
Fault Code 14, 15 (Overheat Switch L
Failure, Hydraulic Oil Temperature
Sensor Failure) T5-3-9
Fault Codes 17, 18, 19, 21, 22
(PVC Failure)T5-3-10
Fault Code 20 (Communication Failure
between EC and PVC) T5-3-11
Fault Code 23, 24 (Pump Control
Failure) T5-3-12
Fault Code 25, 26, 33, 34
(DP Sensor Failure) T5-3-14
Fault Code 27, 28, 35, 36
(P Sensor Failure) T5-3-15
Fault Code 29, 30, 37, 38
(A Sensor Failure) T5-3-16
Sensor Operating Range ListT5-3-17
Group 4 Troubleshooting B
Troubleshooting B Procedure T5-4-1
Correlation between Part Failure and
Abnormalities that Machine may
Show T5-4-2
Correlation between Troubles and
Part Failures T5-4-6
Engine System Troubleshooting T5-4-10
Total Actuator System
Troubleshooting T5-4-19
Front Attachment System
Troubleshooting T5-4-25
Swing System TroubleshootingT5-4-28
Travel System TroubleshootingT5-4-31
162T-5-2
Troubleshooting for Other
FunctionsT5-4-34
Engine Speed Adjustment T5-4-38
EC Sensor Installation and Voltage
Adjustment T5-4-39
Group 5 Troubleshooting C
Troubleshooting C Procedure T5-5-1
Malfunction of Coolant
Temperature GaugeT5-5-2
Malfunction of Fuel Gauge T5-5-4
Malfunction of Indicator Bulb
Check System T5-5-6
Malfunction of Level
Check SwitchT5-5-6
Malfunction of Engine Oil
Level Indicator T5-5-8
Malfunction of Coolant
Level Indicator T5-5-10
Malfunction of Hydraulic Oil
Level Indicator T5-5-12
Malfunction of Alternator
Indicator T5-5-14
Malfunction of Engine Oil Pressure
Indicator T5-5-15
Malfunction of Overheat Indicator T5-5-16
Malfunction of Fuel Level
Indicator T5-5-17
Malfunction of Air Filter Restriction
Indicator T5-5-18
Malfunction of Hour Meter T5-5-19
Malfunction of Buzzer T5-5-20
Malfunction of Work Light
Indicator T5-5-22
Malfunction of Quick Idle IndicatorT5-5-22
Group 6 Electrical System Inspection
Precautions for Inspection and
MaintenanceT5-6-1
Instructions for Disconnecting
Connectors T5-6-3
Fuse Continuity Test T5-6-4
Fusible Link Inspection and
Replacement T5-6-5
Battery Voltage Check T5-6-5
How to Troubleshoot Alternator
Malfunctions T5-6-6
Continuity Check T5-6-7
Voltage and Current CheckT5-6-8
Relay Replacing Procedure T5-6-12
Group 7 Harness Check
Circuit CheckT5-7-1

HITACHI EX750-5 EX800H-5 HYDRAULIC EXCAVATOR TECHNICAL TROUBLESHOOTING MANUAL – PDF DOWNLOAD:

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