The following are some key precautions for the operation and maintenance of coal mine hydraulic cranes:

Operation precautions

Environmental inspection:

Before operation, the working environment should be carefully inspected to ensure that there are no obstacles around the crane and that the ground is solid and stable, preventing the crane from shaking or tilting during operation.

Equipment inspection:

Check whether the various components of the crane are intact, especially the key parts such as the hydraulic system, transmission system, and control system.

Ensure that the hydraulic oil of the crane is sufficient and clean, and avoid using contaminated or deteriorated hydraulic oil.

Operating standards:

Operators should be familiar with the operating procedures of the crane and strictly follow the operation manual for their work.

During the lifting process, the crane should be operated smoothly and slowly to avoid sudden acceleration or deceleration and prevent excessive impact force from the load.

Load management:

Strictly adhere to the load limit of the crane and do not exceed its maximum carrying capacity.

Before lifting, an accurate weight assessment of the load should be conducted to ensure that the crane can safely carry it.

Personnel safety:

During the operation of the crane, it is prohibited for personnel to stand under the crane or near dangerous areas such as the crane boom.

Operators should always pay attention to changes in the surrounding environment to ensure that they can quickly take response measures in emergency situations.

Maintenance precautions

Regular inspection:

Regularly conduct comprehensive inspections of the crane, including various parts such as hydraulic system, transmission system, control system, electrical system, etc.

Check whether the connectors and fasteners of the crane are loose or damaged. If any are found, they should be replaced or tightened in a timely manner.

Cleaning and maintenance:

Regularly clean the surface and internal parts of the crane to remove oil stains and debris.

Use appropriate cleaning agents and tools for cleaning, and avoid using cleaning agents that can corrode the material of the crane.

Lubrication and maintenance:

Regularly lubricate the transmission components, bearings, and other parts of the crane to reduce friction and wear.

Use appropriate lubricants and lubricate according to the manufacturer's recommendations.

Hydraulic system maintenance:

Regularly check the oil level and quality of the hydraulic system to ensure that the hydraulic oil is sufficient and clean.

Clean the oil filter to remove impurities and dirt, in order to keep the hydraulic system unobstructed.

If necessary, replace aging seals and hydraulic oil pipes in a timely manner to prevent hydraulic oil leakage.

Electrical system maintenance:

Regularly inspect the electrical system's wiring and components to ensure good connections and proper functioning.

If damage to electrical components or aging of circuits is found, they should be replaced or repaired in a timely manner.

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