In any of the following cases, the cast metal electric hoist crane pulley should be scrapped. When one of the following conditions occurs, it should be immediately treated as scrap. Do not continue to use
1. Cracks in the electric hoist of climbing frame. 2. The uneven wear loss of climbing frame electric hoist wheel groove reaches 3mm. 3. When the wall thickness of the electric hoist wheel groove of the climbing frame wears up to 20% of the original wall thickness. 4. The electric hoist of the climbing frame reduces the diameter of the bottom of the wheel groove by 50% due to wear. 5. Other related problems such as climbing frame electric hoist damage wire rope and other defects. 2. The specified value The ratio of the diameter of the pulley of the electric hoist crane to the diameter of the wire rope of the climbing frame should not be less than the specified value. 3. The pulley groove of the pulley groove climbing frame electric hoist crane should be kept smooth and flat, and there should be no defective driving that damages the steel wire rope. The service life of climbing frame electric hoist is reported by scientific researchers in about ten years, and the actual use is also seven or eight years, but some users have reached the scrapping standard after one or two years of use, so we must do reasonable maintenance every day. The hoist plan, climbing frame electric hoist needs to develop a series of maintenance measures according to the frequency of use, such as regularly checking the parts for damage and renewal, regularly cleaning the climbing frame electric hoist dirt and adding lubricating oil. In addition, the electric hoist should be stored reasonably when not in use. Do not discard the corner at will, which will affect the next use. It can be seen that the service life of the electric hoist of the climbing frame is closely related to our own use. We can extend the service life of the electric hoist through various methods.