STRUCTURE AND FUNCTION POWER TRAIN POWER TRAIN - 20 Km/h TRAVEL SPEED SPEC. 1. Front axle 2. Center swivel joint 3. Swing motor 4. Control valve 5. Swing brake solenoid valve 6. Travel speed solenoid valve 7. Travel motor 8. Propshaft 9. Hydraulic pump 10. Engine 11. Swing machinery 12. Swing circle 13. Transmission 14. Rear axle 10-5