jump
v.— «The bodies of four construction workers—a crane operator and three riggers who were helping to “jump” the crane, or increase its height—were uncovered shortly after the collapse.…The disaster occurred at 2:22 p.m. on Saturday, a day workers on the high-rise condominium under construction at 303 East 51st Street had spent adding two or more 13-foot sections to increase the crane’s height, a process known as “jumping” or “climbing” the crane.» —“Fifth Body Recovered at Crane Site” by Anahad O’connor, William Neuman New York Times Mar. 17, 2008. (source: Double-Tongued Dictionary)