A mechanism consisting primarily of a heavy weight with a sheave at one end, together with tracks on which the weight rides, for attaching inside a crane boom, or a mechanism consisting of a spring actuated wheel attached to one or two tubular axles having two sheaves affixed thereto, for attaching to a crane boom. It is used to steady clamshell buckets, lifting magnets, and the like.
Classification: Parts of backhoes, shovels, clamshells and draglines
NSN 6105-00-594-8642
NSN 5855-01-400-1590
NSN 2925-01-172-9209
NSN 6145-01-038-5971
NSN 4140-01-106-8952
NSN 6130-01-388-3506
NSN 6105-01-071-9406
NSN 5985-00-232-4916
NSN 5920-01-052-9152
NSN 5945-01-228-8826
NSN 5905-01-016-7512
NSN 6620-00-561-9380