1/16 Bucyrus-Monighan Walking Dragline

[modelman]

Looking good steve-I don't understand the 2-small sheaves over the boom point sheave. What's that all about?

[9W Monighan]

Originally Posted by modelman

Looking good steve-I don't understand the 2-small sheaves over the boom point sheave. What's that all about?

Those are for the suspension cables. There are 6 of them up there and two smaller for the cable ends. This machine has a "Live Boom" but after it's at the proper angle there's two sets of safety cables attached to the mid points. You'll see when I get to that stage. The B/W picture is a boom from probably a 6160 with a two part hoist,notice the attachment under the boom and it has a smaller diameter sheave. This one is: 44''dia. and mine will be:58'' (3.625''scale)