Why Does Electric Chain Hoist Out Of Control

Sometimes electric chain hoist out of control due to wrong operating. Some workers like to connect and disconnect the motor o start current very frequently. That will lead to shorten the service life of contactor. At the same time, it will leave hidden danger for safely operating of electric chain hoist.

There are many other reasons that make electric chain hoist out of control. For example, there is without broken firearms, it may cause not safely lifting. Broken firearms is a necessary equipment to ensure the electric chain hoist working safely. In other words, without broken firearms is easy to be out of control. With the broken firearms, electric chain hoist will cut off the power in time when the hoist exceed the upper or lower limit. Of course you must equipped with a good control button. An unqualified button is easy to breakdown.

What’s more, selecting a good contactor is very important. Some manufacturers produce contactors with bad quality. Its main contacts far less than the national standards. It is very easy to stick together. In fact, this bad one could not be satisfied with using. Once the main contacts stick together, electric chain hoist will be out of control.

Requirements For Manual Hoist Assembling

Manual hoists are regarded as a simple manual operation device for lifting.  They are always cheap and easy to operate. There is nothing limited to place. As we all know, manual hoist also own lifting capacity.

Manual hoist is a chain type. In order to prevent rust, you should choose reasonable lubricant to ensure that the parts operation well. This lubricant could not only maintenance the chain, but also enter into the gap between gear and shaft.

There are some assembling requirements for manual hoist. Before assembling you must ensure the shape and size precision, and other parts are all qualified. There should be without any deformation and damage. At the same time, you had better pay more attention on the parts. It usually own various kinds of marks. The parts of manual hoist which are fixed connection not allowed exist any clearance. On the contrary, the movable parts could move in the specified direction and without any beating.

The contact surface of each moving part must own enough lubricating. All kinds of pipes and sealing parts can not with any leakage phenomenon after assembling. Each part of connections should be reliable and move flexibly. Every handle is in suitable position. And testing from low speed to high speed.