Electric hoist brakes work does not allow reverse

wire rope hoist body is heavy, a lot of inertia at run time, and the normal operation of rope hoist brakes immediately when inverted, will make the entire run organization with great torque, to the detriment transmission. Severe broken drive shaft, also make the body skew distortion; reverse brakes also make the gear linkage system occurred violent impact, damage gear, causing the  Rope hoist  equipment accidents; reverse brakes also make electric power machine with great torque and strong currents, severe motor will burn out.
wire rope hoist brakes also make the air inversion occurs hanging objects swing hanging objects caused by falling. So, at work, in addition to the event in order to avoid the special danger of an accident outside, does not allow reverse brakes.