Komatsu PC88MR-10 Shop Manual page 198

10 Structure and function
Travel motor
1. Regulator valve
2. Timing plate
3. Brake piston
4. Spindle
5. Floating seal
6. Swash plate
7. Regulator piston
8. Planetary pinion B
9. Hub
10. Carrier
11. Cover
12. Planetary pinion A
13. Sun gear A
14. Sun gear B
15. Ring nut
16. Pivot
17. Piston
18. Disc
19. Plate
20. Cylinder
10-120 PC88MR-10