The transmission constituting the present invention provides for {HEAD ~ smooth reversal} of the power consumer, reduced energy expenditure in the traction and reverse modes of {TAIL ~ operation}, efficient operation as a hydraulic retarder, and limiting the output torque in order to prevent slippage of the power consumer and to reduce dynamic loads 
The transmission constituting the present invention provides for { HEAD ~ smooth reversal } of the power consumer , reduced energy expenditure in the traction and reverse modes of { TAIL ~ operation } , efficient operation as a hydraulic retarder , and limiting the output torque in order to prevent slippage of the power consumer and to reduce dynamic loads
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