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Planetary gear set, location/task/design/function - GF27.50-P-5100N: Notes

TRANSMISSION 722.9 in MODEL 171.4, 203, 209, 211, 215, 219, 220, 230 Ravigneaux gear set 

TRANSMISSION 722.9 in MODEL 463.303 /340 /341 

Fig 1: Identifying Planetary Gear Set - Transmission 722.9
G04732606Courtesy of MERCEDES-BENZ USA
  Planetary gear set, location The Ravigneaux gear set (9) is located in the mechanical part of the transmission.  
  Planetary gear set, task Power transmission and production of different gear ratios.  
  Planetary gear set, design The Ravigneaux gear set (9) used consists of 2 ring gears, a planet carrier, a sun gear as well as short and long planetary gears.  
  Planetary gear set, function   GF27.50-P-5100-01N