It is common knowledge that a truck-mounted crane transport vehicle, often referred to as atruck-mounted crane and in some regions, known by local names such as mobile crane or self-loading crane, combines the functions of lifting and transportation. These versatile vehicles find extensive application in various locations including stations, warehouses, docks, construction sites, and during field rescue operations. They have the flexibility to be equipped with cargo compartments of diverse lengths and cranes of varying tonnages, adapting to different job requirements.
Now, let’s delve into the essential safety guidelines for the operation of truck-mounted crane vehicles:
Lifting is strictly prohibited when there are people or floating objects on the item to be lifted. The presence of individuals or unsecured objects on the lifted item poses a significant risk of injury or damage. It is of utmost importance to ensure that the lifted surface is clear of any personnel or loose items before initiating the lifting process.
A clear and unambiguous command signal is crucial for safe lifting operations. If the command signal is vague or indistinct, it can lead to confusion and potential accidents. All personnel involved in the lifting operation should have a mutual understanding of the signalling system and communicate effectively to avoid any misunderstandings.
Overloading or lifting an item without a precise knowledge of its weight is a major safety hazard. Exceeding the crane’s rated capacity or attempting to lift an object of unknown weight can strain the equipment and compromise its stability, increasing the likelihood of failures and accidents. Accurate weight assessment and adherence to the crane’s load limits are essential.
Lifting heavy objects in an uneven or diagonal manner is highly dangerous and should be avoided. Such practices can cause the load to shift unevenly, placing excessive stress on the crane structure and increasing the risk of tipping or loss of control.
When the binding and hanging of the load are not secure or balanced, it can potentially lead to sliding and instability. Before lifting, it is necessary to ensure that the load is firmly attached and evenly distributed to prevent any movement during the lifting process.
Failing to insert a liner between the corner of the lifted object and the binding steel wire can cause damage to the wire and compromise the integrity of the lifting setup. Liners provide protection and enhance the grip, reducing the risk of slippage.
Any structural or component defects or damages that could impact the safe operation of the crane must be addressed before lifting. Regular inspections and maintenance are crucial to identify and rectify such issues promptly.
When dealing with buried objects where the pulling force is not clearly understood, it is best to refrain from lifting. Uncertainties regarding the forces involved can lead to unpredictable situations and potential accidents.
The crane’s safety devices, such as limit switches, overload protection systems, and braking mechanisms, must be in complete and reliable working condition. Any malfunction or deficiency in these safety features can pose serious risks to the operation.
Visibility is a key factor in safe lifting. If the working site is poorly lit, making it impossible to clearly see the site, the lifted object, and the command signal, operations should be halted. Adequate lighting and clear line of sight are essential for precise and safe control.
Working in areas with high-voltage lines is an absolute no-go. The proximity to high-voltage power sources can pose a severe electrocution hazard. Special caution must be exercised to maintain a safe distance from power lines.
Adverse weather conditions such as cloudy, windy, or rainy days can significantly affect the stability and visibility of the lifting operation. Moisture can reduce friction and grip, while strong winds can cause the load to sway. In such conditions, it is advisable to suspend operations until the weather improves and safety can be assured.
In addition to the above specific guidelines, it is important for operators of truck-mounted crane vehicles to undergo comprehensive training and obtain the necessary certifications. They should be familiar with the crane’s operating manual and safety procedures, as well as have a good understanding of load dynamics, weight distribution, and the effects of environmental factors.
Employers and site managers also have a responsibility to ensure that the working environment is suitable for crane operations. This includes providing clear marking of restricted areas, ensuring the ground is stable and capable of supporting the crane’s weight, and establishing effective communication channels among all personnel involved.
Regular maintenance and inspections of the truck-mounted crane vehicle are not only a legal requirement but also a critical aspect of ensuring its safe and reliable operation. This includes checking the condition of the crane structure, hoisting ropes, electrical systems, and safety devices on a scheduled basis.
In conclusion, adhering strictly to the safety guidelines for truck-mounted crane vehicles is essential to prevent accidents, protect personnel, and ensure the smooth and efficient completion of lifting and transportation tasks. By fostering a culture of safety and vigilance, the risks associated with these operations can be minimized, and the potential benefits of these powerful and useful vehicles can be fully realized in a secure manner.
