(1) During the use of the spreader, if the screw lock does not rotate flexibly or in place, the adjusting nut shall be checked, and the following parts shall be checked again:
Whether the stretch spring of the pawl is damaged, if damaged, should be replaced.
(2) Whether the transmission mechanism is stuck, such as stuck, is bad lubrication, should be in the transmission mechanism of the active joint filling lubricating oil (or grease).If the guide pin is too tight, loosen the nut appropriately. If the connection is loose, the transmission tube or other rods are deformed, it should be corrected.
(3) Whether the stretch of the buffer spring is too small, if too small, it should shorten the length of the wire rope that the buffer spring connects.
(2) The paint of the indicator on the spreader indicator board shall be prevented from falling off during use.Upon discovery, the original paint shall be replaced in time.
(3) For the wire rope on the spreader, it should be timely cleaned and coated with lubricating oil or grease, especially the bending part of the wire rope.
(4) The main bearing members, lifting rings, screw locks, lug plates and shackles of rigging shall be checked at least once every three months under normal service conditions, and no cracks and serious deformation shall be allowed.
(5) All oil cups, including the oil cup of ratchet mechanism, the oil cup on the sliding bearing seat and the oil cup of the screw lock box, should be filled with lubricating oil at the main movable joints according to the use situation.
(6) Frequently check whether the rope card is loose and whether the buffer spring is overstretched, and deal with the problems in time.
(7) Each spreader shall not exceed the rated lifting weight, and the buffer spring shall not be overstretched.
(8) During the lifting process, the lifting shall be lifted smoothly to avoid deformation due to the collision between the lifting tool and the crane or other equipment.