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Cleaning of overhead bridge crane hydraulic system

May 31, 2019
The hydraulic system provides power to the engineering crane operating device, and proper maintenance of the hydraulic system is very important to improve the reliability of the overhead bridge crane.
In general, the hydraulic system is flushed before it is officially installed to the overhead bridge crane and put into operation to remove contaminants, metal chips, fiber compounds, iron cores, etc. that remain in the system. In the first two hours of operation, even if the system is not damaged, it will cause a series of malfunction. So should follow the steps below to clean the system oil circuit:
1. Clean the tank with a dry cleaning solvent and remove the solvent residue with filtered air.
2. Clean all piping in the system, in some cases the piping and joints need to be impregnated.
3. Install oil filter in the pipeline to protect the oil supply line and pressure line of the valve.
4. Install a flushing plate on the current collector instead of the precision valve, such as the electro-hydraulic servo valve.
5. Check that all pipe sizes are appropriate and that the connections are correct.
Single girder overhead crane
single girder overhead crane

Double girder overhead crane
double girder overhead crane