Rope hoist rope guides causes of damage

After the replacement of the drum hoist, used not long, it appeared hoist rope guides chipping "guide rope" Although the wearing parts, but in addition, there have unexplained Break off today, do a brief introduction :
      Fairlead Specifications: Unless calibration done, in general, can be divided into cast iron rolls and rolls with use, lifting height of 12 meters above the steel drum

diameter smaller guide rope, lifting height The following is the cast iron roll 12 m rope guide diameter larger.
       Wire rope hoist  drum after replacing the original components as they are not, it may lead to uneven force or guide rope installer component mismatch due. I would recommend you where to buy  Rope hoist  products, such as parts damaged, must then try to contact the original parts demanded by buyers. Explosion-proof hoist maintenance

should be in accordance with GB3836.13 danger zone rope and roller sports also involves explosion safety, belonging to non-electrical explosion-proof areas.