A joint puller includes an arm having a first arm end and a second arm end, and a lever having a first lever end and a second lever end. The first arm end is configured to be pivotally connected to a first busway section, and the second lever end is configured to be pivotally connected to a second busway section. The first lever end is pivotally connected to the arm at a location spaced from the first arm end. The joint puller further includes a stopper extending from the lever at a location spaced from the first lever end. The stopper contacts the arm when the arm is pivoted to a predetermined angle with respect to the lever.