A truck mounted crane, also known as lorry crane or truck crane, is a multifunctional construction vehicle that integrates cargo transportation and hydraulic lifting functions. Widely used in municipal construction, material handling, road engineering, warehouse loading and outdoor hoisting work, the hydraulic truck mounted crane features flexible movement, high working efficiency and strong adaptability. However, irregular operation is the main cause of equipment failure, structural deformation and safety accidents. Mastering standard truck mounted crane operation precautions is crucial to ensure stable working performance, prolong service life and improve construction safety for all mobile lifting engineering vehicles.https://www.hjtrailer.com/construction-machinery/truck-mounted-crane/howo-truck-mounted-straight-arm-crane.html
- Strictly abide by rated lifting load limit
Overload lifting is the most common and dangerous operation error for mobile truck crane. Every truck mounted crane is designed with fixed rated lifting capacity under different boom lengths and working radii. Operators are prohibited from lifting over-weight goods, uneven loads or buried heavy materials. Overload operation will directly cause hydraulic system overload, boom bending deformation, cylinder leakage, and even lead to vehicle rollover. Before hoisting tasks, workers must confirm the weight of cargo and match the lifting range of the lorry mounted crane to ensure safe load operation.
- Fully deploy outriggers before lifting work
All truck mounted crane lifting operations must be carried out after fully extending and grounding hydraulic outriggers. It is forbidden to lift goods with retracted outriggers or incomplete supporting legs. The adjustable outrigger system can expand the supporting area, balance vehicle gravity and stabilize the whole truck chassis on uneven construction sites, muddy roads and rugged ground. Make sure each outrigger is firmly grounded and the vehicle body is kept horizontal. This core preparation effectively avoids chassis tilt, boom jitter and rollover risks during high-altitude hoisting.
- Standard hydraulic boom stretching and retracting operation
The telescopic boom is the core working component of the hydraulic truck crane. Operators should follow slow-start, stable-operation and slow-stop principles during boom stretching, lifting, rotating and retracting. Avoid sudden acceleration, emergency stop and sharp rotation, which will cause huge instantaneous hydraulic pressure and mechanical impact on the boom structure, hydraulic cylinder and connecting parts. Reasonable boom operation can reduce wear of hydraulic seals, prevent oil pipe burst and maintain the stability of the whole lifting truck equipment.
- Keep safe working radius and lifting angle
The lifting capacity of a truck mounted crane changes with the boom angle and working radius. The larger the working radius, the smaller the effective lifting weight. Operators must reasonably adjust the boom angle according to actual hoisting conditions, and never operate beyond the safe working range. Keep a safe distance from overhead power lines, buildings and obstacles to prevent collision accidents during boom rotation and stretching. Scientific control of working radius and angle greatly improves the safety and efficiency of construction lifting vehicles.
- Prohibit oblique pulling and side lifting operation
Vertical lifting is the standard working mode for all truck mounted crane equipment. Oblique pulling, side lifting and dragging heavy goods horizontally will generate huge lateral torque, causing eccentric stress on the crane boom, rotary table and chassis structure. Long-term irregular operation will lead to boom distortion, rotary mechanism wear and chassis fatigue damage. All heavy cargo must be lifted vertically and stably to ensure uniform force on the crane structure.
- Check equipment status before and after operation
Before starting daily work, inspect key parts including hydraulic oil level, pipeline tightness, outrigger flexibility, boom wear, hook and steel rope condition. Eliminate hidden dangers such as oil leakage, loose joints and abnormal component wear in advance. After finishing hoisting tasks, fully retract the boom and outriggers, place the hook in fixed position, and clean dust and sundries on the crane body. Regular inspection and standardized storage can effectively reduce failure rate and extend the service life ofexport truck mounted crane for long-term engineering operation.
- Avoid long-time continuous hydraulic overload work
The hydraulic system of the truck mounted crane will generate heat during continuous operation. Long-time uninterrupted lifting and rotating will cause excessive hydraulic oil temperature, resulting in reduced oil viscosity, weakened system pressure and accelerated aging of hydraulic components. It is necessary to arrange intermittent working time reasonably to ensure the hydraulic system dissipates heat normally and maintains stable lifting performance in long-term construction projects.
Conclusion: Standard operation is the key to maintaining high efficiency and long service life of truck mounted cranes. Strictly following operation precautions can effectively reduce maintenance costs and improve construction safety. If you are looking for high-quality hydraulic truck mounted cranes, multifunctional lorry cranes for municipal engineering and material handling, welcome to contact us for detailed technical parameters and factory wholesale prices.
