1.Wire rope electric hoist motor temperature rise is too high.
First of all, check whether the wire rope electric hoist is overloaded. The overload causes the motor to heat up.
Then check whether the motor bearing is damaged or not, and whether the motor works according to the regulations.
When the motor is running, if the brake clearance is too small, will generate a large frictional force. The frictional heat also increases the additional load.
2.Wire rope electric hoist can not start after heavy objects rise to mid-air, or after parking can not re-start.
First check if the system voltage is too low or the fluctuation is too large. If it is, restart it only after the voltage returns to normal.
On the other hand, if it cannot be started after stopping, pay attention to whether there is a phase loss in the operation of the three-phase motor.
3.Can not stop working.
The power should be cut off immediately, the wire rope electric hoist should be forcibly stopped, and the repair the contactor or stopper. If it is seriously damaged and cannot be repaired, it must be replaced.
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