Troubleshooting 1, after the start, the motor does not turn, can not lift heavy objects ⑴ excessive overload, overload is not allowed to use ⑵ voltage lower than the rated voltage of more than 10%, and other electrical voltage returns to normal ⑶ faulty electric hoist, wire disconnected or bad 5t electric hoist, electrical and line maintenance ⑷ after the brake wheel and cover rust killed, brake drum tied, remove the brake drum and cleaning corroded surfaces ⑸ motor sweep chamber, according to the fault handling ⑹ No. 9 wire too small, Replace wire motor temperature too high ⑴ use wkto hoist overload, load shedding jobs too frequently use ⑵ reduce the number of operations ⑶ brake gap is too small, when operating the brake ring is not completely disconnected, the equivalent of an additional load. Sound re-adjust the reducer is too large ⑴ poor lubrication, disassembly overhaul 50kg hoist Longhai electric hoist, supplied by the industry's leading heavy machinery Co., Ltd., Henan Province, generous. Heavy Machinery Co., Ltd., Henan Province, generous (www.hnqizhongshebei.com) (www.hnqizhongshebei.com) strong, credible, in Zhengzhou, Henan engineering, construction crane industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving generous innovative ideas will lead into the brilliant heavy and you work for a better future!