Hunan rescue case Object: Sany 16T crane

Customer's Name: Mr. Wang Crane Fault Description: Abnormal sound of the wheel hub on the right side of the front axle Maintenance personnel: Li Tao, Cao Yang 2 people Maintenance time: 4 hours Maintenance process description: It is preliminarily determined that the abnormal sound of the right wheel hub may be caused by friction between the wheel hub and the protective plate, the wheel hub and the brake drum and other mechanical parts, *8983 first check the wall panel, and no contact friction with the brake drum is found; Disassemble the brake drum and no foreign objects or brake shoe deformation were found; Dismantling the wheel, it was found that there were traces of friction on the wheel; Check the brake shoe holder and find that there are corresponding friction marks; Polishing the friction part of the brake shoe holder and reassembling it is normal. Total maintenance cost: free of charge according to 24-hour Sany service rescue Repair result: troubleshooting