TIL my crane's load chart lied to me for 2 years

Was on a job in Dallas last month setting AC units on a rooftop. Been running this LTM 1050 for about 3 years now. Decided to double check my radius with a tape measure and realized I was 4 feet off on every lift I'd done since I started. Feel kinda dumb but now I verify everything twice. Anyone else ever trust a weird gauge or indicator and end up way off on your numbers?

2 comments

2 Comments

lunab972d ago

Loaded a 50-ton heat exchanger three feet past my charted radius last spring because I trusted the boom angle indicator. Turned out it was reading 4 degrees high. Felt like a real genius when I ran the actual numbers later and realized I was practically doing curls with the boom. Crane didnt tip but my pride sure did when I had to re-rig the whole job.

noranguyen1d ago

Those little angle errors add up faster than you'd think (in cranes and life).