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Precautions for use of Chain Block

  • liftool_admin
  • 01 Jun 2021

Precautions for use of chain block


1) Before using the chain block, carefully check whether the rotating part is flexible, whether there is chain clamping, whether the chain is broken and cracked, whether the brake is safe and reliable, whether the pin is firm, and whether the hanging rope and support beam are firm and stable. It can be used only after passing the inspection.


2) When in use, check whether the lifting chain is twisted. If it is twisted, it can be used only after adjustment.


3) When in use, first pull the bracelet back and loosen the lifting chain to make the chain fall have sufficient lifting distance. During operation, pay attention to tensioning slowly to make the chain gradually stressed. The formal operation can be carried out only after there are no abnormalities.


4) In the lifting operation, overload is strictly prohibited. No matter where it is in use, the zipper shall be in the same direction as the sprocket to prevent the zipper bracket. The force of the zipper shall be uniform and shall not be too fast or too fierce. When it is used in the horizontal direction, the chain shall be supported by a cushion at the entrance of the thin chain to prevent failure.


5) During the use of the chain block, the number of zippers shall be determined according to the lifting capacity of the chain block. When the hand zipper cannot be pulled, the reason shall be found out, and the number of people shall not be increased or pulled sharply, so as to avoid the fracture of the lifting chain due to excessive stress.


6) When lifting an object, if it is necessary to suspend the object temporarily, the hand zipper shall be tied to the lifting chain to prevent accidents caused by chain fall self-locking failure.


7) The rotating parts shall be lubricated regularly to prevent the chain from rusting. The chain seriously rusted and with broken marks or cracks shall be scrapped and renewed and shall not be used.


8) The chain and steel wire rope shall be inspected once every six months, and the test shall be conducted once a year at 25% of the rated load of the hoist.