Komatsu PC600LC-7 Manual page 116

STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
1. Drive shaft
2. Spacer
3. Case
4. Disc
5. Plate
6. Brake ring
7. Brake piston
10-84
8. Housing
9. Reverse prevention valve
10. Center spring
11. Cylinder block
12. Valve plate
13. Piston
14. Center shaft
SWING MOTOR
15. Safety valve
16. Check valve
17. Check valve spring
18. Shuttle valve
19. Shuttle valve spring
20. Brake spring
PC600, 600LC-7