The truck-mounted crane is short for truck-mounted crane transport vehicle. It is modified on the basis of ordinary cargo trucks and can both carry goods and lift objects. This dual functionality has led to its wide acceptance in the market.
The Dongfeng Duolika 2-ton straight arm truck-mounted crane is a common choice among small cranes. So, what precautions should be taken during its utilization?
The truck-mounted crane is a special-purpose vehicle, and the requirements for its users are extremely stringent. The personnel operating the truck-mounted crane must undergo professional training and pass the assessment of the relevant departments to obtain the qualification certificate before they are entitled to use the truck-mounted crane. Improper use of the truck-mounted crane can have severe consequences. Thus, when using the truck-mounted crane, it is essential to operate in accordance with the safety operation manual.
Before use, it is mandatory to conduct an equipment check. For instance, verify whether the brake, hydraulic device, and safety device are complete, sensitive, and reliable, and whether the steel wire rope adheres to safety regulations. If any issues are identified during the inspection, even minor faults, the equipment must not be put into use until the faults are rectified.
During operation, it is strictly prohibited for individuals to stand in the working area, under the boom, or beneath the suspended object. The elevation angle of the boom should not be less than 30 degrees. Attempting to utilize the heavy arm of the boom, especially under load, should be avoided. Before the boom is raised or lowered steadily, changing the control lever is strictly forbidden, as it could lead to serious ramifications.
During the lifting process of the truck-mounted crane, it is not permitted to overhaul or adjust the machine components. When the boom is lifted to the maximum elevation angle and the hook is at the lowest position, there should be at least three turns of the steel wire rope on the hoisting drum.
During the working process of the truck-mounted crane, the driver must halt immediately upon receiving any emergency stop signal from anyone. Work can only resume after eliminating the unsafe factors.
The truck-mounted crane is strictly prohibited from overloading and cannot run laterally on a slope, nor can the boom be turned downward towards the slope. When lifting heavy objects, initially, raise the heavy object approximately 10 centimeters off the ground and check whether the stability of the crane and the brake are flexible and effective. Only upon confirmation of normalcy can the operation proceed.
After the work of the truck-mounted crane is completed, the hook and the boom should be placed in the prescribed positions, all the operation handles should be returned to the zero position, and then the power supply should be disconnected.
Now, let’s explore some additional precautions and considerations during the use of truck-mounted cranes:
Regular maintenance and servicing of the crane are crucial. This includes inspecting and lubricating moving parts, checking for wear on critical components such as the boom and hoist cables, and ensuring the proper functioning of the hydraulic system. Scheduled maintenance intervals should be strictly adhered to to prevent unexpected breakdowns and ensure the crane’s reliability.
Weather conditions can also have a significant impact on the operation of the truck-mounted crane. Strong winds, rain, or slippery surfaces can increase the risk of instability and accidents. In adverse weather, extra caution should be exercised, and operations might need to be postponed or modified if conditions are too hazardous.
When working in close proximity to power lines or other obstructions, it’s essential to maintain a safe distance to prevent electrical hazards and damage to the crane and its load. Special precautions and safety measures should be in place when operating in such environments.
The quality and condition of the lifting attachments and slings used with the crane are of utmost importance. Damaged or worn-out attachments can fail under load, posing a serious threat to safety. Regular inspections and replacements of these components are necessary.
The driver and operator should also be constantly aware of the weight and distribution of the load being lifted. Unevenly distributed loads can cause the crane to tip over or result in unstable lifting operations. Careful planning and assessment of the load characteristics are essential before initiating the lift.
Training and familiarization with the specific capabilities and limitations of the particular truck-mounted crane model are indispensable. Different models might have unique features and restrictions that operators need to understand to operate safely and efficiently.
In addition, having a comprehensive safety plan in place, including emergency response procedures and the availability of appropriate safety equipment such as fire extinguishers and first aid kits, is an important aspect of overall crane operation safety.
Finally, keeping accurate records of all crane operations, inspections, maintenance, and any incidents or near-misses can provide valuable insights for continuous improvement of safety and operational practices.
In conclusion, the safe and effective use of truck-mounted cranes requires strict adherence to safety precautions, ongoing training and awareness, regular maintenance, and a commitment to a safety-first culture. By taking these measures, the risks associated with crane operations can be minimized, and the productivity and reliability of the equipment can be maximized.
