L48A1 Mast Section Maintenance skills of mechanical parts of tower crane
Tower crane is a large building, how to maintain the mechanical parts of tower crane, it is particularly important.
1. Strict implementation of Crane steel structure parts scrap standards.
2. The main structural parts should be inspected for metal fatigue strength, weld cracks, structural deformation, breakage, etc.. The key welds of the main structural parts and the materials in the welding heat impact area should be inspected. If abnormal conditions are found, they should be treated. Structures shall be inspected in accordance with the following procedures.
(1) Daily inspection: Every 80 hours of work on the tower should be conducted daily inspection. The driver of the tower should check the fastening condition of the bolts in each connection when handing over the shift. If there is any loosening, it should be fastened in time.
(2) When there is an abnormal sound in the tower machine, or there has been a mistake in operation, or when the security protection device of the tower machine has failed, it should be checked and recorded.
(3) When a project is completed and the tower machine is dismantled, the engineers and technicians and professional maintenance personnel shall conduct detailed inspections and make good records.
3. In the course of transportation, every effort should be made to prevent structural deformation and collision damage.
4. Brush paint every six months to a year. Rust, oil and other dirt on the metal surface should be removed before painting.
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