Electric wire rope hoist why lift malfunction?
Q: why electric wire rope hoist will lift malfunction?
A: in the workshop production line, the plant electric wire rope hoist lifting machinery more frequent natural encountered more common, the most common fault in the case of "wire rope electric hoist lift malfunction" caused the the wire rope gourd lift failure main reasons are the following:
1, electric hoist control button. Button insulation breakdown and short-circuit as long as it is due to the frequent operation, making it effective insulation destruction. The main reason is leakage current due to poor working conditions, repair is not timely. Therefore, in addition to select electric hoist products of acceptable quality, but also to strengthen the routine maintenance and timely resolution of potential accidents.
2, AC contactor main contacts to sintering link. Contact quality problems or improper selection, the main contact is often sintering adhesion can not be disconnected when the disconnect, to cause electric hoist can not be stopped rising. Frequent electric hoist operation, the contactor must choose the appropriate models.
3, limit switch control failure. Trip control switch limit position is reached in a timely manner power outage security measures increase in electric wire rope hoist, stroke control switch prone to loosening displacement phenomenon due to the frequent use of emergency protection, and thus lose. Therefore, to strengthen the work of operators, maintenance personnel, security education and training.