Box without external rotation gantry crane operation precautions

1, at the job site, the  hoist gantry crane  operation is stopped, the user must promptly lock the crane.
2, more than worthy of the  bridge gantry crane  master switch any wires. Prohibited for lifting high temperature solution, flammable, explosive, corrosive (acids, alkalis, plating, steamed moisture), overload, dust and other dangerous operations.
3, door hanging outside span is less than the total length of 1/3, hanging outside the limit at 90% of Gn will move heavy carts can only run within the leg. Required to run the heavy carts outside leg Gn 10-20% reduction,overhead bridge crane overhang beyond the third time span, Gn segmented reduction. Above heavy carts must be running close to the legs, a small span should not run outside of the leg.