2.4 Basic components of the excavator

2.4 BASIC COMPONENTS OF THE EXCAVATOR

29 1

2

28

27

26

25 23 24

22 3

4

5

6

7

8

9

21

20

19

1. Arm cylinder 2. Boom 3. Batteries 4. Hydraulic oil tank 5. Swing motor 6. Handrail 7. Main control valve 8. Rear view mirror 9. Hydraulic pump 10. Isuzu BB-4BG1T engine 11. Counterweight 12. Intercooler 13. Travel motor 14. Engine coolant reservoir 15. Swivel joint 16. Engine air cleaner 17. Upper roller (1 each side)

Upper roller (2 each side) - L 18. Lower roller (6 each side)

Lower roller (7 each side) - L 19. Track spring (1 each side) 20. Fuel tank 21. Track idler (1 each side) 22. Track shoe assembly (600 mm STANDARD)

Track shoe assembly (800 mm STANDARD) - L 23. Cab 24. Boom cylinder 25. Bucket 26. Bucket link 27. Idler link 28. Bucket cylinder 29. Arm

18

17

16 10

15

14 13

F16322

12 11