Key points of daily maintenance of the hottest rou
2022-10-03- Detail
Key points for daily maintenance of round steel slings
(1) during the use of slings, if the rotation of the lock is not flexible or not in place, check and adjust the adjusting nut, and then check the following parts:
① whether the tension spring of the pawl is damaged, if damaged, it should be replaced
② check whether the transmission mechanism is stuck. If it is stuck and belongs to poor lubrication, fill lubricating oil (or grease) at the movable connection of the transmission mechanism. If the guide pin is too tight, loosen the nut appropriately. If the connection is loose or the transmission pipe or other rod is deformed, it should be corrected; In order to properly handle
③ whether the tension of the buffer spring is too small. If it is too small, the length of the steel wire rope connected with the buffer spring should be shortened
(2) during use, the paint of the indication mark on the indicator board of the spreader should be prevented from falling off. Once found, it is necessary to timely supplement the coating with the original indication of 10 tons or less, which is easy to adopt the identification of electronic horizontal tensile testing machine
(3) for the steel wire rope on the spreader that measures the output pulse number of the photoelectric encoder to obtain the displacement of the beam, it should be timely cleaned and coated with lubricating oil or grease, especially at the bend of the steel wire rope
(4) for the main load-bearing components with a service life of 2 years after each verification, the lifting rings, rotary locks, ear plates and rigging shackles should be checked at least every 3 months under the normal use and cleaning conditions, and there should be no cracks and serious deformation
(5) all oil cups, including the oil cup of ratchet mechanism, the oil cup on sliding bearing seat and the oil cup of spin lock box, should be filled with lubricating oil at the main movable joints according to the use situation
(6) regularly check whether the rope clamp is loose and whether the buffer spring is excessively stretched, and deal with problems in time if found
(7) each sling shall not exceed the rated lifting capacity, and the buffer spring shall not be overstretched
(8) during the lifting process, it should be lifted smoothly to avoid deformation due to the collision between the lifting appliance and the crane or other equipment
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