Maintenance and upkeep of hydraulic cylinders for loaders involves the maintenance and upkeep of the hydraulic medium and the cylinder body. The advantages of hydraulic transmission are simple structure, stable quality, high mechanical efficiency, and ease of automation. To ensure safer and more efficient operation of hydraulic machinery, the key lies in correctly selecting, using, and maintaining the hydraulic oil according to system pressure, operating speed, oil volume, and ambient temperature.
Maintaining and upkeep hydraulic cylinders requires preventing contaminants from entering the hydraulic oil:
1. During use, the hydraulic oil should be changed regularly, and the system filter should be cleaned to ensure cleanliness and extend service life.
2. Before each use, the cylinder should be run through five full extension and retraction strokes before being operated under load. This purges air from the system, preheats the system, and effectively prevents air or water in the system from causing gas explosions (or scorching) in the cylinder body, which can damage seals and lead to internal leakage and other malfunctions.
3. Control the system temperature. Excessive oil temperature will reduce the service life of the seals. Prolonged high oil temperature can cause permanent deformation or even complete failure of the seals.
4. Protect the outer surface of the piston rod from impacts and scratches that could damage the seals. Regularly clean the dust seal area of ??the cylinder dynamic seal and the exposed piston rod to prevent dirt and debris adhering to the piston rod surface from entering the cylinder and damaging the piston, cylinder barrel, or seals.
5. Regularly check all threaded and bolted connections. Tighten any loose connections immediately.
6. Regularly lubricate the connections to prevent rust or abnormal wear in the absence of oil.
