Each rotary part of the stainless steel electric gourd must be regularly refueling lubricating oil every month to keep the surface of the brakes clean! Stainless steel electric gourd's lifting chain should often apply lubricating oil! Note that the stainless steel electric gourd's lifting chain cannot stick to the mud and other debris! After use, the stainless steel hand stretch gourd should be placed in a dry place. Although it is a stainless steel electric gourd, if it is not used for a long time, it should be properly kept stainless steel electric gourd!