Some older gate systems need operators replaced. When installing a new operator on an older gate or if the gate was installed at a separate time than the operator, you might run into a problem. What do you do if your drive unit cannot be aligned with the pivot point of your gate leaf? The 2141 extension arm was designed for this exact situation. Use this extension arm with 750 swing gate operators to align your drive unit with a gate leaf without moving the gate or where you wish to install your gate opener.