Got an interesting lift Monday.
Catwalk and conveyors over four grain tanks. Estimated weight: 18,000 pounds. Two lifts about 95 long each. Height is about 85'. Radius is about 45'. Power lines on one side, ICC railroad on the other. Just enough room to clear both.
Question for the riggers. Planning on a tandem lift. A 50 ton and a 60. Planning on using 20' shake out hooks. Probably two pair on each rig. The catwalk is designed to span about 35'. We'll be lifting 85-90'. The catwalk is about 8' wide. Eight points of attachement, four on each rig. I'm not comfortable with 2 lift points on each rig. I think the catwalk will bend and bow.
My question. Will all eight pickup points keep equal weight if the operators keep the thing level? If one gets ahead of the other, will they keep eual weights?
Oh, one of the operators has about 4 weeks experience. But, I plan to be there and talk him through it one move at a time.
Catwalk and conveyors over four grain tanks. Estimated weight: 18,000 pounds. Two lifts about 95 long each. Height is about 85'. Radius is about 45'. Power lines on one side, ICC railroad on the other. Just enough room to clear both.
Question for the riggers. Planning on a tandem lift. A 50 ton and a 60. Planning on using 20' shake out hooks. Probably two pair on each rig. The catwalk is designed to span about 35'. We'll be lifting 85-90'. The catwalk is about 8' wide. Eight points of attachement, four on each rig. I'm not comfortable with 2 lift points on each rig. I think the catwalk will bend and bow.
My question. Will all eight pickup points keep equal weight if the operators keep the thing level? If one gets ahead of the other, will they keep eual weights?
Oh, one of the operators has about 4 weeks experience. But, I plan to be there and talk him through it one move at a time.