CalG
Super Member
- Joined
- Sep 29, 2011
- Messages
- 5,076
- Location
- vermont
- Tractor
- Hurlimann 435, Fordson E27n, Bolens HT-23, Kubota B7200
There are many possible configurations for boom poles fitted to 3pth
The commercial offerings all seem to require the use of a top link. However, the design offered by the University of N.Dakota Ag department shows a design without an additional free pivot top link.
The "derrick" I've been using has two lower members, and a chain attached to the top link pin for the third member.
My preference is for a taller structure that keeps the load forces down rather than acting on a long lever arm.
But what is to be said for boom poles with or without separate top link?
Application is lifting stuff .... yesterday I re-purposed a shed roof ;-)
But lifting rounds onto the splitter, and loading and unloading machinery are frequent needs.
TIA
Cal in VT
The commercial offerings all seem to require the use of a top link. However, the design offered by the University of N.Dakota Ag department shows a design without an additional free pivot top link.
The "derrick" I've been using has two lower members, and a chain attached to the top link pin for the third member.
My preference is for a taller structure that keeps the load forces down rather than acting on a long lever arm.
But what is to be said for boom poles with or without separate top link?
Application is lifting stuff .... yesterday I re-purposed a shed roof ;-)
But lifting rounds onto the splitter, and loading and unloading machinery are frequent needs.
TIA
Cal in VT