Looking at the difference in sizes of the two clutches would make one wonder how come the TA can get by with a smaller disk.
The reason is that the TA clutch does not have to hold as much torque as the main clutch because of the gear reduction in the TA. The power is transmitted through the TA gears to the input shaft of the transmission. As the TA reduces the output shaft speed the torque entering the transmission is greater than the torque coming through the main clutch. Since torque is increased as speed is decreased, the opposite is also true. The gearing in the TA has the effect of trying to increase the speed of the TA clutch assembly and thus reducing the torque available. The result is that the TA clutch, even though it is smaller, is able to handle as much HP as the main clutch.
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Today's Featured Article - Tuning-Up Your Tractor: Plugs & Compression Testing - by Curtis Von Fange. The engine seems to run rough. In the exhaust you can hear an occasion 'poofing' sound like somethings not firing on all cylinders. Under loaded conditions the tractor seems to lack power and it belches black smoke out of the exhaust. For some reason it just doesn't want to start up without cranking and cranking the starter. All these conditions can be signals that your unit is in need of a tune up. Ok, so what is involved in a tune up? You say, swap plugs and file the points....now tha
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