Torque Produced
The torque is shown in the figure to the right. The counter balance torque, well load torque, the theoretical net torque, and the net torque with 85% efficient were all plotted with respect to the position of the crank, These were all found based on theoretical positions of the crank. The equations are given along with the data points in the table above.
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The Figure to the right shows the load applied on the gearbox. As long as the dynometer readings stay in between the upstoke and downstroke measurements the gearbox is not overloaded. If either of the lines are crossed you know the gearbox is overloaded. When the gearbox is overloaded the stress rating for the gearbox needs to be re-evaluated and a better rated gearbox needs to replace the existing one..