Domestic LNG Excavator of the Heaviest Duty Produced
2014-08-22
XE60W
XCMG XE60W Wheel Excavator
2014-08-25

Safety in Operation: Crane Operation Precautions

Safety in Operation
  • Safety in Operation: Crane Operation Precautions

  • 1. Any miscalculation and misjudgment on hoisting capacity may lead to accidents, therefore matters below should be taken into account:
  • Safety in Operation: Crane Operation Precautions

  • 1) Please pay attention to the increase in luffing after the heavy object lifted off from the ground;
  • 2) Hoisting capacity includes the weight of slings and riggings etc.;
  • Safety in Operation: Crane Operation Precautions

  • 3) Hoisting capacity, boom length, luffing, and multiplying factor should be corresponded with each other;
  • 4) Interpolation method should not be employed to calculate the hoisting capacity;
  • Safety in Operation: Crane Operation Precautions

  • 5) Hastiness in hoisting heavy objects with unknown weight may result in overturn of the crane. Any test of the object weight with the crane is prohibited;
  • 6) Overloading is prohibited.
  • Safety in Operation: Crane Operation Precautions

  • 2. When hoisting the heavy object with two cranes, it is suggested to choose cranes with similar hoisting performance. During the hoisting process, it is recommended to give unified directions, 
  • Coordinate the hosting actions, and distribute reasonably the load. Usually, the hoisted weight should not surpass 75% of the two cranes’ total permissible hoisting capacity in a specified working condition, 
  • And the load on a single crane should not exceed 80% of the rated hoisting capacity. Moreover, a written plan should be prepared before hoisting.
  • Safety in Operation: Crane Operation Precautions

  • 3. All cranes should not be operated before the A-shaped frame has been fully raised and the anti-roll bar is activated.

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