ZX470-6 • 470LC-6 • 490H-6 • 490LCH-6 • 490R-6 • 490LCR-6 • 530LCH-6 HYDRAULIC EXCAVATOR TECHNICAL MANUAL TROUBLESHOOTING
HITACHI ZAXIS ZX
470-6
470LC-6
490H-6
490LCH-6
490R-6
490LCR-6
530LCH-6
Hydraulic Excavator
Service Manual consists of the following separate Part No.
Technical Manual (Operational Principle) : Vol. No.TOJAG50-EN
Technical Manual (Troubleshooting) : Vol. No.TTJAG50-EN
Workshop Manual : Vol. No.WJAG50-EN
Engine Manual : Vol. No.ETJAG50-EN, EWJAG50-EN
The Attached Diagram List
The following diagrams are attached to this manual.
1. ELECTRICAL CIRCUIT DIAGRAM
AIR CONDITIONER CIRCUIT DIAGRAM
2. CONNECTORS
3. CAB HARNESS
MAIN HARNESS
4. ENGINE HARNESS
PUMP HARNESS
5. CONTROL VALVE HARNESS
NOx HARNESS
6. EXPANSION TANK SUB HARNESS
DEF SENSOR UNIT HARNESS
7. MONITOR HARNESS
KEY SWITCH HARNESS
8. MANUAL REGENERATION SWITCH HARNESS
OIL COOLER FAN REVERSE ROTATION SWITCH HARNESS
9. ENGINE STOP SWITCH HARNESS
FLOOR EARTH HARNESS
10. PILOT SHUT-OFF SOLENOID VALVE HARNESS
STARTER HARNESS
11. GSM (MOBILE COMMUNICATION TERMINAL) HARNESS
SATELLITE COMMUNICATION HARNESS
12. AUTO LUBRICATION HARNESS
AUTO LUBRICATION ON/OFF SWITCH HARNESS
13. REARVIEW CAMERA HARNESS
COUNTERWEIGHT REMOVAL SWITCH HARNESS (OPTION)
14. BOOM MODE SWITCH AND SEAT HEATER SWITCH HARNESS (OPTION)
BREAKER HARNESS (OPTION)
15. WORK LIGHT (ON THE CAB ROOF) HARNESS 1 (OPTION)
WORK LIGHT (ON THE CAB ROOF) HARNESS 2 (OPTION)
16. ADDITIONAL WORK LIGHT (ON THE CAB ROOF) HARNESS (OPTION)
17. HYDRAULIC CIRCUIT DIAGRAM (STANDARD)
HYDRAULIC CIRCUIT DIAGRAM (OPTION)
18. HYDRAULIC CIRCUIT DIAGRAM (WITH HOSE RUPTURE VALVE)(OPTION)
HYDRAULIC CIRCUIT DIAGRAM (WITH COUNTERWEIGHT REMOVAL AND INSTALLATION DEVICE)(OPTION)
SECTION AND GROUP CONTENTS
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 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
