Electric chain hoist operation failure how to solve?

    Electric chain hoist can be realized in the car comes with beams up and down and move around, particularly widespread field of use, greatly improving the work efficiency, but in the course inevitably encounter problems, load chainsuch as malfunctioning of the problem is a recent customer's one, the following summary for you to solve the electric chain hoist malfunctioning commonly used methods:
       1, the power supply voltage is too low.
       Solution: measured voltage value is less than the scale of more than 10% of the supply voltage.
       2, see the power of the original line phase is connected correctly, as it will lead to a wrong start phase protection and can not be manipulated.
       Workaround: two phase power line swapped.
       3, the control  wire rope hoist  circuit fuse burned.
       Solution: Check and replace fuse accurate
       4, the power fuse or no fuse breaker tripped.
       Solution: Check whether the current demand, replace the appropriate fuse or no fuse switch restarts.
       5, power lines or control circuit wiring fault or not connected.
       Workaround: poor contact wire breakage and repair or replacement.
       6, electric hoist motor sound, but did not rotate.
       Solution: Check the motor phases is accurate - Repair and well insulated action.
       7, the emergency switch is pressed.
       Solution: Make sure the emergency switch is pressed causes.
       8, the contactor coil circuit.
       Solution: Replace the contactor
       9, the contact is faulty.
       Workaround: manually operated hoist,manual block electric chain hoist if normal operation, the control coil or wire represents a poor contact, poor position to identify and fix it.