MOUNTING AND DEMOUNTING JIG OF LOCK NUT FOR COUPLING

摘要

PROBLEM TO BE SOLVED: To safely, easily and speedily mount and demount a coupling lock nut for a large pump motor. SOLUTION: This jig inserts a coil spring 3 into a center guide rod 2 by erecting the center guide rod 2 on a movable base 1. A nut receiver 5 is seated on an upper end of the coil spring 3, and a nut engagement part 4 is formed on its upper surface. Thereafter, a handle 6 for lock nut rotation is provided on the nut receiver 5. Additionally, a plural number of hanging bolts 8 are erected and fixed at equal distances from the center guide rod 2.