Browse Publications Technical Papers 1999-01-2811

Case MX Magnum Transmission Controls 1999-01-2811

This paper will discuss the new Case MX Magnum® tractor transmission controls. They are electronically controlled, hydraulic valves that reduce transmission internal torque spikes, operator shift shock, complexity, and eliminated the need for periodic system calibration. The new system splits the controls into their simplest common denominators, and leverages commonality of parts and concepts to reduce both system and development costs. It maintains clutch pressure during low regulated pressure transients that occur during a shift, while compensating for clutch wear, to maintain the desired shift characteristics.


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