When do maintain overhead cranes?

For the overhead cranes and hoists, they are special lifting mechanism, so after finishing the installation, we should do the regular maintenance to make sure the daily use. For overhead cranes, there will be one part named maintenance platform, your engineers can do the maintenance on that platform. And for many parts like wire rope, gears, they will require regular refueling. You can see the related introduction for "Maintenance of Specific Components of Overhead Cranes" here. 

In order to extend the service life of the overhead cranes, improve the utilization rate of the equipment and ensure safe production, it is necessary to do a good job in daily maintenance and planned overhaul of the lifting equipment.

Doing a good job of maintenance during the inspection interval of the overhead crane is the basis for ensuring the normal and continuous operation of the crane. Proper maintenance during the inspection interval can extend the inspection interval, reduce the maintenance workload and improve the production efficiency of the equipment. Meanwhile, we also need to know "Ways to Save Overhead Cranes and Gantry Cranes Maintenance Costs". 

The maintenance and overhaul items of general bridge cranes usually include the following aspects to ensure the long-term stable operation and safety of the equipment.

Daily maintenance items

Cleaning and lubrication: Regularly clean the surface and key components of the overhead crane, including beams, rails, gearboxes, etc., remove dust and debris, and perform proper lubrication to ensure smooth operation.

Electrical system inspection: Check electrical components such as cables, wiring, switches, buttons, etc. to ensure that there is no damage and wear, and the operation is flexible and reliable.

Mechanical system inspection: Check the main beam, supporting structure, rails and connecting parts to find cracks, deformation or wear, and adjust and replace them if necessary.

Regular maintenance items

Hydraulic system inspection: Check the quality and oil level of the hydraulic oil to ensure cleanliness and normality. Check whether there are leaks and damages in the hydraulic pipelines, oil pumps, valves, etc.

Braking system inspection: Check the braking system of the crane, including brakes and brake drums, to ensure sensitive and reliable braking.

Safety device inspection: Check the functions of safety devices such as limiters, overload protectors, safety locks, etc., to ensure that adjustments and repairs are made when necessary.

Seasonal maintenance items

Environmental inspection: Check the environmental safety around the crane according to seasonal changes, especially in bad weather conditions, to ensure operating space and safe distance.

Rust prevention: Regularly perform rust prevention on the metal surface of the crane, especially in wet or rainy seasons.

Annual or overhaul items

Comprehensive overhaul: Regularly perform comprehensive overhaul and overhaul, including disassembly, cleaning, replacement of worn parts, lubrication parts and readjustment.

Structural inspection: Perform a detailed inspection of the overall structure of the crane to ensure that there are no cracks, deformations or other structural problems, and perform welding and reinforcement when necessary.

Record and file management

Detailed records are kept for each maintenance and overhaul, including inspection items, problems found, repair measures and operation suggestions. Establish maintenance files and historical records of the crane to track equipment status and maintenance history.

Through regular maintenance and overhaul, general bridge cranes can maintain good operating conditions and safety, extend the service life of the equipment, and ensure efficiency and reliability during operation.