Crane routine maintenance items

    electric winch is a heavy mechanical handling equipment, Shandong Crane in everyday use, in order to avoid accidents, we should pay attention to the daily maintenance items from small series to introduce you to the following routine maintenance items crane:
     The first is the crane pulley overhaul: pulley cover should be installed securely, no damage or significant deformation; pulleys rotating flexible, clean smooth no cracks, no defects rim part, no damage rope defects; uneven wear volume 3mm round slot or when the wall thickness of the wear volume of the original wall thickness of 20%, or round bottom groove diameter is reduced to 50% capacity wire rope diameter pulley should be scrapped.
     Secondly, is the strong electric winch hook overhaul: the amount of wear hook dangerous section shall not exceed 10% of the original size of the board hook bushing wear amount should not exceed 50% of the original size, the mandrel shall not exceed the original amount of wear. 5% of the size of; the surface should be smooth, without break, acute defects and other defects are not allowed on the hook welding; danger the lower section of the hook and undercut the tail section of the threaded portion of the non-hook cracks; hook should rotating flexible, bolts, cotter pins, etc. must be tightened intact.
     Finally, the maintenance of the crane rope: rope ends fixed platen should ≥2 months; rope length must ensure that the hook lowest position (including pit), the remainder left on the roll of rope less than 3 laps; wire rope should no kink, dead, hard curved, plastic deformation, such as hemp core prolapse severely deformed, lubrication condition.