... and release the cable 2. a synchronizing operation with the moving device. FUNCTION DJ1D type constant tension cable ... very good.3, Lock performance.Our machine have worm gear with good lock performance,when the power is off ... .For the small type cable reel drum(DJ1D-I,II,III,IV),workers should put out the ... in the opposite direction,and move the drum with clockwise,the Curly torque will be increased,on ...