Heard a guy at the yard in Omaha say he never checks his load chart for lifts under 5 tons

I mean, maybe it's just me but that's a wild thing to say out loud. Our 80-tonner has a 4-ton chart line that's only good for a 15-foot radius, and he's out here eyeballing it. How many near misses happen because someone thinks they can guess the numbers? Anyone else run into this kind of talk on site?

3 comments

3 Comments

logan64815d ago

Used to be one of those guys who thought pattern recognition was good enough. I'd been running cranes for over a decade and could guess a load within a few hundred pounds. But then I saw a guy drop a 3-ton bundle of rebar because he was off by 15 feet on his radius guess. The math just doesn't lie. That chart line is there because someone did the testing and figured out exactly where things get sketchy. You can look at a load and know it feels heavy, but you can't feel a 4-ton lift shift from stable to unstable when the boom moves out another 5 feet. Pattern recognition is great for the easy stuff, but it'll never replace those numbers on paper.

the_evan3mo ago

Ever think some guys just have a feel for it after years on the job?

quinnbailey3mo ago

Honestly, that "feel for it" is just pattern recognition you build up. Like a mechanic hears a weird engine knock and knows it's the lifters, not the rods. You see the same small problems cause big failures over and over. After a while, you just know where to look first without running every single test.