Bob_Young
Veteran Member
- Joined
- Jul 5, 2002
- Messages
- 1,244
- Location
- North of the Fingerlakes - NY
- Tractor
- Ford 4000; Ford 2000(both 3cyl.);JD40; 2004 Kubota L4300; 2006 Kubota B7610; new 2007 Kubota MX5000
Cranes have a big counterweight that rotates with the boom and counter balances the load....the TLB counterweight is fixed.
If you lift something up straight behind the tractor, you have the full weight of the tractor and the FEL as counterbalance with a substantial moment arm (leverage). As you swing the load to the left or right, you progressively lose the counterbalance effect as the moment arm drops to near zero. At 90 degrees the weight of tractor and FEL are essentially at the pivot point so all you have left as counterbalance is one rear tractor tire.
Lifting up a load and driving out from under it seems the best way to handle the unloading task.
Bob
If you lift something up straight behind the tractor, you have the full weight of the tractor and the FEL as counterbalance with a substantial moment arm (leverage). As you swing the load to the left or right, you progressively lose the counterbalance effect as the moment arm drops to near zero. At 90 degrees the weight of tractor and FEL are essentially at the pivot point so all you have left as counterbalance is one rear tractor tire.
Lifting up a load and driving out from under it seems the best way to handle the unloading task.
Bob