The main components of an automatic transmission are the torque converter, which transmits torque to the gear units via a chain drive, and the hydraulic circuit, which regulates the selection of gears, clutches and brakes in accordance with engine speed and load. The automatic transmission is a very precise mechanism and working with it requires absolute cleanliness. Dirt getting into the box can cause the valves to malfunction and possibly damage the internal parts of the box.
Considering the complexity of the box's design, at home you can only perform with it those operations that are indicated in the following sections. The box repair must be performed by a specialist.
Figure 6.38. Automatic transmission type 125 TNM: 1. Torque converter; 2. Turbine wheel; 3. Pump wheel; 4. Guide wheel; 5. Leading sprocket; 6. Sprocket holder; 7. Turbine shaft; 8. Oil pump shaft; 9. Brake band; 10. Direct coupling; 11. Forward clutch; 12. Input satellite carrier; 13. Clutch casing; 14. Low speed and reverse clutch; 15. Freewheel clutch; 16. Reactive planetary gear; 17. Tachometer drive gear; 18. Regulator; 19. Differential; 20. Axial drive; 21. Regulator hydraulic line; 22. Parking lock activation device; 23. Compaction; 24. Hydraulic line; 25. Transmission fluid filter; 26. Brake band servo unit; 27. Carter; 28. Driven sprocket holder; 29. Driven sprocket; 30. Axle shaft; 31. Chain drive; 32. Battery; 33. Pump with valves; 34. Downshift device; 35. Hydraulic line booster valve.
Original posted on the website [OPELBOOK.ru]
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