Troubleshooting 1, after the start, the motor does not turn electric hoist Lang ⑴ can not lift heavy objects over overload, overload is not allowed to use ⑵ voltage lower than the rated voltage of more than 10%, and so the voltage returns to normal ⑶ electrical fault 5t electric hoist, wire break On or bad, after maintenance of electrical and wiring ⑷ brake wheel and cover rust killed hoist brake drum tied, remove the brake drum and cleaning corroded surfaces ⑸ motor sweep chamber, No. 9 by the fault handling ⑹ wire too small, the replacement of lead brake system: DC electromagnetic brake koto electric hoist, a powerful braking capacity, structural stability. Material cast aluminum brakes, ensure proper cooling, brake coil made of epoxy package, brake discs made of non-asbestos material. Overload protection: The chain hoist overload protection by friction clutch, friction clutch is a vertical stroke can gourd overload protection safety device, when the load exceeds the rated load, the friction clutch will play a role, to prevent the chain damaged hoist. (Note: This device is a safety device, not as a limit to use, set the clutch according to national standards.) Limit device: the upper and lower electronic limit switches, control hook travel to prevent overload clutch, effective improve the life of the clutch and gears. All electric chain hoists are in strict accordance with safety standards for electrical equipment installed in the body of the transformer 24V low voltage control. High-quality electronic control components and electromagnetic brakes effectively guarantee the chain hoist to achieve more than 240 times / hour frequent operation. wkto hoist | generous heavy (certified) | Shuangjiang County hoist is provided by generous heavy machinery Co., Ltd., Henan Province. Heavy Machinery Co., Ltd., Henan Province, generous (www.hnqizhongshebei.com) (www.hnqizhongshebei.com) is Zhengzhou, engineering, construction cranes leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum Limits to meet customer needs. In heavy generous leadership with the staff warmly welcome all inquiries negotiations to create a better future for heavy generous.