Hitachi Ex215 Excavator Technical Troubleshooting Manual (604.06.812)
File Details:
Hitachi Ex215 Excavator Technical Troubleshooting Manual (604.06.812)
- Manual Language:English
- Downloadable:Yes
- Pages: 221
- Size: 2.80 MB
- Format:PDF
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Description:
Hitachi Ex215 Excavator Technical Troubleshooting Manual (604.06.812)
TO THE READER
• This manual is written for an experienced technician to provide technical information needed o maintain and repair this machine.
– Be sure to thoroughly read this manual for correct information concerning the service procedures.
– If you have any questions or comments, or if you found any errors regarding the contents of this manual.
ADDITIONAL REFERENCES
• Please refer to the materials listed below in addition to this service manual:
– Operator’s Manual
– Spare Parts Catalog
SERVICE MANUAL COMPOSITION
• The complete service manual consists of four books:
– Technical Manual – Operational Principle
– Technical Manual – Troubleshooting
– Excavator Workshop Manual
– Engine Workshop Manual
– The Technical Manual-Operational Principle includes the technical information concerning the operation of main devices and systems.
– The Technical Manual -Troubleshooting includes the technical information needed for operational performance tests, and troubleshooting procedures.
– The Excavator and the Engine Workshop Manuals include information needed for maintenance and repair of the machine, tools and devices needed for maintenance and repair, maintenance standards, removal/installation and assembly/disassembly procedures.
Table Of Contents:
Hitachi Ex215 Excavator Technical Troubleshooting Manual (604.06.812)
TROUBLESHOOTING..................................................................... 1 Introduction........................................................................ 2 Section and Group Contents.......................................................... 28 Section4 - Operating Performance................................................ 29 Group 1 - Introduction...................................................... 30 Operational performance test............................................ 30 Preparation for performance tests....................................... 31 Group 2 - Standard.......................................................... 32 Operational Performance standard tables................................. 32 Main pump P-Q diagram................................................... 36 Group 3 - Engine test....................................................... 38 Engine speed............................................................ 38 Group 4 - Excavator test.................................................... 40 Travel speed............................................................ 40 Track revolution speed.................................................. 41 Mistrack check.......................................................... 42 Travel parking function check........................................... 43 Swing speed............................................................. 44 Swing function drift check.............................................. 45 Swing motor leakage..................................................... 46 Swing bearing play...................................................... 47 Maximum swingable slant angle........................................... 48 Hydraulic cylinder cycle time........................................... 49 Dig function drift check................................................ 51 Control lever operating force........................................... 52 Control lever stroke.................................................... 53 Combined boom raise/swing function check................................ 54 Group 5 - Component test.................................................... 56 Primary pilot pressure.................................................. 56 Secondary pilot pressure................................................ 58 Solenoid valve set pressure............................................. 59 Main pump delivery pressure............................................. 61 Main relief valve set pressure.......................................... 62 Overload relief valve set pressure...................................... 66 Main pump flow test..................................................... 69 Swing motor drainage.................................................... 73 Travel motor drainage................................................... 75 Section5 - Troubleshooting...................................................... 78 Group 1 - Diagnosing Procedure.............................................. 80 Introduction............................................................ 80 Diagnosing Procedure.................................................... 81 Dr.EX................................................................... 83 Dr.EX Start-Up Procedure................................................ 83 Dr.EX Fault Code........................................................ 84 Dr.EX Monitoring Function............................................... 85 Dr.EX Special Function (Service Mode)................................... 86 Adjustable Data List.................................................... 93 Group 2 - Component Layout.................................................. 94 Main Components......................................................... 94 Electrical System (Overall System)...................................... 95 Electrical System (Relays).............................................. 96 Electrical System (Monitor and Switch Panels).......................... 97 Pump and Related Parts.................................................. 98 Control Valve........................................................... 99 Others Components.......................................................103 Group 3 - Troubleshooting A.................................................104 Troubleshooting A Procedure ............................................104 Fault Codes.............................................................105 Fault Code 01...........................................................107 Fault Code 02, 03.......................................................108 Fault Code 04, 05.......................................................109 Fault Code 06...........................................................110 Fault Code 07...........................................................111 Sensor Operating Range List.............................................112 Group 4 - Troubleshooting B.................................................114 Troubleshooting B Procedure.............................................114 Relationship between Machine Trouble Symptoms and Parts in Trouble.....115 Correlation between Trouble Symptoms and Part Failures.................125 Engine Troubleshooting..................................................131 Actuator Control System Troubleshooting................................145 Front Attachment Control System Troubleshooting........................151 Swing System Troubleshooting............................................163 Travel System Troubleshooting...........................................166 Troubleshooting for Other Functions.....................................171 Engine Speed Adjustment and Engine Learning............................173 Exchange Inspection Method..............................................174 Group 5 - Troubleshooting C.................................................176 Troubleshooting C Procedure.............................................176 Malfunction of Coolant Temperature Gauge................................177 Malfunction of Fuel Gauge...............................................179 Malfunction of Fuel Level Indicator.....................................181 Malfunction of Indicator Light Check System.............................183 Malfunction of Level Check Switch.......................................183 Malfunction of Engine Oil Level Indicator...............................185 Malfunction of Coolant Level Indicator..................................187 Malfunction of Hydraulic Oil Level Indicator............................189 Malfunction of Alternator Indicator.....................................191 Malfunction of Engine Oil Pressure Indicator............................193 Malfunction of Overheat Indicator.......................................195 Malfunction of Air Filter Restriction Indicator.........................197 Malfunction of Buzzer...................................................199 Malfunction of Hour Meter...............................................201 Group 6 - Electrical System Inspection......................................202 Precautions for Inspection and Maintenance.............................202 Instructions for Disconnecting Connectors...............................204 Fuse Continuity Test....................................................205 Inspection and Replacement of Fusible Links.............................206 Battery Voltage Check...................................................207 How to Troubleshoot Alternator Malfunctions.............................208 Continuity Check........................................................209 Voltage and Current Check...............................................211 Replacement of Relay....................................................215 Group 7 - Harness Check.....................................................216 Circuit Check...........................................................216
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