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Breaker assembly..........................................................5
Breaker assembly
The breaker assembly (Fig. 27) on the machine has a 19 inch (483 mm) or 25 inch (635 mm) pick circle with a five point star arrangement. It has a 8 inch (203 mm) shaft diameter turned down to 6.1875 inches (157 mm) through the bearings.
Fig. 27: Breaker assembly main components
4 6 9 10 13 14 15 16 19 20 22 24 25 27 29 31
17 18 21 23 26 28 30
1 2 3 5 7 8 11 12
1. Retainer cap 2. Shear hub 3. Seal housing 4. Seal 5. Spiral retaining ring 6. O-ring 7. Side plate 8. Bearing housing 9. Sealing ring 10. Bearing 11. O-ring 12. Bearing retaining ring 13. Seal 14. Bearing backing ring 15. Bit 16. Breaker shaft 17. Bearing backing ring 18. Seal 19. Bearing retaining ring 20. O-ring 21. Bearing 22. Sealing ring 23. Bearing housing 24. Side plate 25. O-ring 26. Spiral retaining ring 27. Seal housing 28. Breaker end cap 29. Underspeed sensor mount 30. U-bolt
