Electrical Circuit - Hitachi ZAXIS 135US-5B Operator's Manual

Hydraulic excavator
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Electrical Circuit

Electrical Diagram
1. FUSIBLE LINK
2. BATTERY
3. BATTERY RELAY
4. STARTER
5. STARTER RELAY
6. ALTERNATOR
7. GLOW RELAY
8. SOLENOID FUEL PUMP
9. AIR-CON. COMPRESSOR
10. AMBIENT SENSOR
11. PRESSURE SWITCH
12. BOOM LIGHT
13. WORK LIGHT
14. WASHER
15. HORN (H), HORN (L)
16. PILOT CONTROL SHUT-OFF SOLENOID VALVE
17. PILOT CONTROL SHUT-OFF RELAY
18. STARTER CUT RELAY
19. LOAD DUMP RELAY
20. PILOT CONTROL SHUT-OFF SWITCH
21. ENGINE STOP SWITCH
22. AIR-CON. UNIT
23. WIPER RELAY
24. WIPER MOTOR
25. ECU
26. STARTER SWITCH
27. FUSE
28. SECURITY RELAY
29. SECURITY HORN
30. SECURITY HORN RELAY
31. LIGHTER
32. RADIO
33. SPEAKER R
34. SPEAKER L
35. LIGHTER RELAY1
36. LIGHTER RELAY2
HYDRAULIC CIRCUIT AND ELECTRICAL CIRCUIT
37. WASHER RELAY
38. HORN RELAY
39. HORN SWITCH
40. AUTO SHUT DOWN RELAY
41. CAB LIGHT
42. MONITOR
43. POWER DIGGING SWITCH
44. MC
45. SWITCH BOX
46. AUTO-IDLE SWITCH
47. MODE SWITCH
48. TRAVEL 2-SPEED SWITCH
49. ENGINE SPEED CONTROL DIAL
50. LIGHT SWITCH
51. WASHER SWITCH
52. WIPER SWITCH
53. HYD. OIL FILTER WARNING
54. AIR CLEANER RESTRICTION SWITCH
55. FUEL SENSOR
56. COOLANT TEMP. SENSOR
57. OVER-HEAT SWITCH
58. ENGINE OIL LEVEL SWITCH
59. CAMERA
60. SWING ALARM
61. TRAVEL ALARM
8-2

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