Sudden interruption of manual forklift operation during use may be caused by hydraulic system failure, mechanical component damage, power system issues, electrical system failures, improper operation, or environmental factors. The following are specific reasons and analysis:

1、 Hydraulic system malfunction

The hydraulic system is the core part of a manual forklift, responsible for lifting and moving the forks. Hydraulic system failure may cause forklifts to malfunction, with common reasons including:

Insufficient or leaking hydraulic oil: Hydraulic oil is the foundation for the normal operation of hydraulic systems. If there is insufficient or leaking hydraulic oil, it can lead to insufficient system pressure, thereby affecting the normal operation of forklifts.

Hydraulic pump damage: The hydraulic pump is the power source of the hydraulic system. If the hydraulic pump is damaged or severely worn, it will not be able to provide sufficient pressure, causing the forklift to malfunction.

Valve failure: If the valves in the hydraulic system (such as relief valves, directional valves, etc.) fail, it may cause unstable pressure or slow operation of the hydraulic system, thereby affecting the normal operation of the forklift.

2、 Mechanical component damage

If the mechanical components of a manual forklift, such as tires, transmission gears, braking systems, etc., are damaged or severely worn, it may also cause the forklift to suddenly stop working. Common reasons include:

Tire damage: Tires are critical components for forklift movement, and if they are damaged or have insufficient air pressure, it will affect the forklift's mobility.

Wear of transmission gear: The transmission gear is a key component for power transmission in forklifts. If the transmission gear is severely worn or damaged, it will cause poor or interrupted power transmission in forklifts.

Brake system failure: The brake system is an important guarantee for the safe driving of forklifts. If the brake system fails or the brake components are severely worn, it will cause the forklift to be unable to brake normally or the braking distance to be too long.

3、 Power system issues

For electric forklifts, power system issues may cause the forklift to suddenly stop working. Common reasons include:

Battery depletion: The power of an electric forklift comes from the battery. If the battery is depleted or severely aged, it will cause the forklift to malfunction.

Motor failure: The motor is the power source of the electric forklift. If the motor fails or is damaged, it will cause the forklift to fail to start or operate normally.

4、 Electrical system malfunction

Electrical system failures may also cause manual forklifts to suddenly stop working. Common reasons include:

Line fault: Poor contact, disconnection, or aging and wear of the lines in the electrical system can cause the electrical system to malfunction.

Controller malfunction: The controller is the core component of the forklift electrical system. If the controller is damaged or programmed incorrectly, it will cause the forklift to be unable to control or operate normally.

Sensor malfunction: Sensors are important components in the forklift electrical system, used to detect various status parameters of the forklift. If the sensor malfunctions or fails, it will cause the forklift to be unable to perceive and respond to external signals properly.

5、 Improper operation

Improper operation is also one of the common reasons for manual forklifts to suddenly stop working. Common operational misconduct includes:

Overloading: Overloading is one of the main causes of forklift malfunctions and accidents. If the forklift is overloaded, it will cause damage to its structural components or excessive pressure in the hydraulic system, leading to malfunctions.

Rapid acceleration and braking: Rapid acceleration and braking can cause impact and wear on forklift mechanical components, which will shorten the service life of the forklift and increase the risk of failure in the long run.

Use in harsh environments: Using forklifts in damp, dusty, or corrosive environments will accelerate the corrosion and wear of forklift components, leading to malfunctions.

6、 Environmental factors

Environmental factors may also have an impact on the normal operation of manual forklifts. For example:

High or low temperature: High temperature environments may cause a decrease in viscosity and lubrication performance of forklift hydraulic oil; Low temperature environment may lead to an increase in viscosity and a decrease in fluidity of forklift hydraulic oil. All of these will affect the normal operation of the forklift.

Excessive humidity: An environment with excessive humidity may cause moisture or short circuits in the forklift electrical system, leading to malfunctions.

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