The sudden interruption of low clearance electric hoists can be attributed to several reasons, which can be summarized as follows:

Power Supply Issues:

Power Failure: The hoist may stop suddenly due to a power outage or if the power supply to the hoist is not connected properly.

Voltage Fluctuations: If the voltage supplied to the hoist is too low or fluctuates significantly, it can cause the hoist to stop working.

Electrical Faults:

Phase Loss: A phase loss in the three-phase power supply can cause the motor to stop or run erratically.

Control Circuit Problems: Faults in the control circuit, such as damaged contactors, loose connections, or malfunctioning limit switches, can lead to sudden interruptions.

Damaged Wiring: Worn or damaged electrical wiring can cause short circuits or open circuits, resulting in the hoist stopping.

Mechanical Issues:

Brake System Failure: If the brake system fails to engage or disengage properly, it can cause the hoist to stop suddenly or prevent it from starting.

Gearbox or Motor Problems: Issues with the gearbox, such as worn gears or damaged bearings, or problems with the motor, such as overheating or internal faults, can lead to interruptions.

Load Chain or Wire Rope Issues: A broken or jammed load chain or wire rope can cause the hoist to stop.

Operator Error or Misuse:

Overloading: Exceeding the hoist's rated load capacity can cause it to stop or malfunction.

Improper Operation: Incorrect operation, such as sudden starts or stops, or using the hoist in an unsafe manner, can lead to interruptions.

Environmental Factors:

Corrosion: Exposure to corrosive environments can damage the hoist's components, leading to failures.

Contamination: Dirt, debris, or moisture can enter the hoist's electrical or mechanical components, causing malfunctions.

Maintenance Neglect:

Lack of Lubrication: Insufficient lubrication of moving parts can lead to increased friction and wear, eventually causing the hoist to stop.

Worn Parts: Failure to replace worn or damaged parts in a timely manner can result in sudden failures.

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