... ,the motor of cable drum stop working and skid institutions begin to slip.2, Power supply is at the middle of mobile device,the motor of the ... ,then cable is released,at this time,the motor of cable drum go on working,skid institutions slip faster.Installation:1,Cable ... as standby.3,The cable in the cable reel drum must be fixed on the wall of the drum with clip,and wind the cable on the cable drum ...