The sudden interruption of the operation of the European wire rope electric hoist may be caused by power problems, electrical faults, motor abnormalities, overload protection triggering, brake system faults, control circuit problems, poor contact of the sliding contact wire, operational or environmental factors, as follows:

1、 Power issue

Sudden power outage: If other equipment is running normally but the electric hoist stops, it is necessary to check whether the power cord is plugged in properly. Poor contact or falling off may cause power outage.

Voltage instability: When the motor terminal voltage is more than 10% lower than the rated value, the starting torque is insufficient and the cargo cannot be lifted.

Phase loss operation: Damage to the main control circuit electrical equipment, circuit disconnection, or poor contact can cause motor phase loss, which may burn out the motor.

2、 Electrical malfunction

Fuse blown: Overload, short circuit, or pulse current may blow the fuse, causing the electrical system to malfunction.

Controller malfunction: Damage to internal components of the controller can affect the operation of the electric hoist.

Poor circuit contact: Aging or loosening of electrical circuits can cause the control panel indicator light to not light up or operate abnormally.

3、 Motor abnormality

Motor burnout: Long term overload, phase loss operation, or poor heat dissipation may cause motor burnout.

Bearing damage: Motor bearing wear can cause abnormal noise, vibration, or weak operation.

4、 Overload protection triggered

The actual load exceeds the rated load: the overload protector will frequently trigger, causing the electric hoist to stop running.

Overload protector setting error: The overload protector parameters need to be recalibrated.

5、 Brake system malfunction

Brake stuck: Brake pad wear, spring failure, or brake wheel oil contamination can cause the brake to fail to release, affecting descent control.

Improper braking clearance: A clearance that is too small can generate friction, causing the motor to heat up and the speed to decrease.

6、 Control circuit issues

Control button malfunction: Poor or broken contact of the control circuit, oxidation or damage of button contacts can cause operational failure.

Limiting device malfunction: Limiting device malfunction may cause signal termination, causing the electric hoist to stop running.

7、 Poor contact of sliding contact wire

Misalignment of sliding contact line interface: The plastic shell of the sliding contact line is fragile and deformed during transportation and installation, resulting in interface misalignment. When the current collector passes through, poor contact may cause phase loss or power outage.

Current collector problem: The corrosion and failure of the current collector spring or the chamfering of the carbon brush contact lead to poor contact, causing the electric hoist to suddenly stop.

8、 Operational or environmental factors

Improper operation: Overloaded operation, uneven load, or inclined pulling and lifting can cause the electric hoist to tilt under stress, driving the current collector off track and causing poor contact.

Environmental factors: Corrosive environment, foreign object blockage, or high temperature can cause damage to equipment components or unstable operation.

The main equipment produced by Hebei Makita: stage electric hoist, electric chian hoist, wire rope electric hoist，Hand chain hoist, lever hoist, pneumatic hoist and other lifting equipment