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　　Hook group plays a very important role in cranes. The hook group is mainly composed of hooks and roller slide groups. Below is Henan Weihua Heavy Duty Crane Machinery Co., Ltd. introduces the maintenance process of the hook group to you.

　　1. Maintenance of roller skating groups.

　　First of all, the roller skates need to be cleaned, the wear of the roller skates are checked, and replacement is required if they exceed the scrap standards. The cast steel roller skates can be re-welded and continued to be used, but if they break, they must be scrapped and replaced. The air-free and lubricating oil tanks of pulley bearings must be cleaned, and the bearing spacer ring, expansion ring, etc. must be cleaned and then the condition is ready.

　　2. Maintenance of hooks

　　Use kerosene to clean the hook body, dry it and use a magnifying glass to check. If cracks are found, repair welding is not allowed and must be scrapped. Check parts such as pull plates, cross beams, etc. When the pull plate holes are severely worn, you can use high-quality welding rods to repair and re-use them. If replaced and built, the mechanics of the whole material must be well met the requirements. For hooks that have been used for a period of time, due to the effect of the wire rope, the surface of the hook will harden, and it must be returned once a year. The section of No. 20 steel is enough, and the annealing temperature is guaranteed to be between 500 and 600 degrees. After return, it needs to be cooled slowly to keep the mechanical properties of the hook body unchanged.

　　The hook set is checked at least once a quarter during use.

　　Hook group plays a very important role in cranes. The hook group is mainly composed of hooks and roller slide groups. Below is Henan Weihua Heavy Duty Crane Machinery Co., Ltd. introduces the maintenance process of the hook group to you.

　　1. Maintenance of roller skating groups.

　　First of all, the roller skates need to be cleaned, the wear of the roller skates are checked, and replacement is required if they exceed the scrap standards. The cast steel roller skates can be re-welded and continued to be used, but if they break, they must be scrapped and replaced. The air-free and lubricating oil tanks of pulley bearings must be cleaned, and the bearing spacer ring, expansion ring, etc. must be cleaned and then the condition is ready.

　　2. Maintenance of hooks

　　Use kerosene to clean the hook body, dry it and use a magnifying glass to check. If cracks are found, repair welding is not allowed and must be scrapped. Check parts such as pull plates, cross beams, etc. When the pull plate holes are severely worn, you can use high-quality welding rods to repair and re-use them. If replaced and built, the mechanics of the whole material must be well met the requirements. For hooks that have been used for a period of time, due to the effect of the wire rope, the surface of the hook will harden, and it must be returned once a year. The section of No. 20 steel is enough, and the annealing temperature is guaranteed to be between 500 and 600 degrees. After return, it needs to be cooled slowly to keep the mechanical properties of the hook body unchanged.

　　The hook set is checked at least once a quarter during use.