Perform daily inspections on European-style cranes to ensure their safe operation. Conduct routine safety inspections during crane operation. The key inspection items are as follows:
(1) The travel limit switches, height limiters and all interlock mechanisms for lifting shall function normally, safely and reliably;
(2) Requirements for major components: the opening dimension shall be less than 15% of the original size, and the torsional deformation shall be less than 10%; the wear of the plate hook bushing shall be less than 50% of the original size, and the wear of the plate hook mandrel shall be less than 5%; no peeling, repair welding or burrs are allowed; the hook suspension frame and pulleys shall be free of obvious defects.
(3) The surface wear and corrosion of steel wires shall not exceed 40% of the wire diameter. Within a certain length, the number of broken wires shall be less than 10% of the total wires, with no wire breakage, obvious abrasion, core extrusion, extrusion deformation, burnout, sharp-angle twisting or annealing.
(4) The drum shall be free of cracks and loose connections and fixings; the wall wear of the drum shall be less than 20% of the original wall thickness; no less than two turns of safety rope shall be retained on the drum. The diameter ratio of the drum to the steel wire rope shall meet relevant requirements, the balance wheel shall be firmly fixed, and the steel wire rope shall comply with relevant specifications.
Daily inspections shall be implemented to ensure the safe operation of European-style cranes. Safe operation is our common goal!
