Abstract: A landing gear system and method of actuating the landing gear system, the system including a first leg assembly, a second leg assembly, a cross-shaft arranged between the two leg assemblies, and a landing gear actuator. The landing gear actuator includes a motor and a coupling shaft which is arranged to couple and decouple the landing gear actuator from the cross-shaft.

Abstract: A semi-trailer landing gear assembly can include a set of legs actuable to raise and lower a semi-trailer. Each leg can include a foot abutting the ground and a support abutting the semi-trailer. A rotatable shaft couples to the set of legs where rotation of the rotatable shaft raises and lowers the legs. A crank can operably couple to the rotatable shaft to rotate the rotatable shaft. At least two air drivers operably couple to the crank to rotate the crank in an opposing manner such that at least one air driver is always offset from the direction of rotation to provide continuous torque.

Abstract: A landing gear system and method of actuating the landing gear system, the system including a first leg assembly, a second leg assembly, a cross-shaft arranged between the two leg assemblies, and a landing gear actuator. The landing gear actuator includes a motor and a coupling shaft which is arranged to couple and decouple the landing gear actuator from the cross-shaft.