Precautions for daily maintenance of vertical hoisting coil spreader


(1) During the use of the spreader, if the twist lock is inflexible or not in place, check the adjustment nut, and then check the following parts:

①Whether the tension spring of the pawl is damaged, if damaged, it should be replaced;
②Whether the transmission mechanism is stuck, if it is stuck, it is poorly lubricated, lubricating oil (or grease) should be added to the movable connection of the transmission mechanism. 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;
③Whether the tension of the buffer spring is too small, if it is too small, shorten the length of the wire rope connected with the buffer spring.

(2) Prevent the indicator paint on the indicator plate of the spreader from falling off during use. Once found, it is necessary to promptly replace the paint with the original indication mark.

(3) The wire rope on the spreader should be cleaned and coated with lubricating oil or grease in a timely manner, especially the bend of the wire rope.

(4) The main stressed components, lifting rings, twistlocks, ear plates and rigging shackles should be inspected at least once every 3 months under normal conditions of use, and there should be no cracks and serious deformations.

(5) For all oil cups, including the ratchet mechanism oil cup, the oil cup on the sliding bearing seat and the oil cup of the spin lock box, the main movable connections should be filled with lubricating oil in a timely manner according to the usage.

(6) Frequently check whether the rope clamp is loose, whether the buffer spring is excessively stretched, and solve the problem in time.

(7) Each type of spreader must not exceed the rated lifting capacity, and the buffer spring must not be overstretched.

(8) Lifting should be done steadily during the lifting process to avoid deformation due to the collision between the spreader and the crane or other equipment.


Contact Us