In the TF models, instead of concaves there was a transverse separation drum, which was clearly wider than the threshing drum. Around the drum ran a rake with V-shaped bars that pulled the straw to the right and left. The wings at the ends threw the straw backward. The acceleration rollers gave the straw extra speed, causing it to fly over a meter to the choppers, which were located on both edges of the combine harvester. Otherwise, the structure of the TF was very much the same as that of the later introduced TX series. The capacities of the fuel tanks and grain tanks were larger in the models from the 1990s than in those from the mid-1980s. The decals in the later models also looked the same as those in the TX30 series.

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