First, the hydraulic cylinder installation precautions
1. The hydraulic cylinder and the surrounding environment should be clean. Tank to ensure that sealing, to prevent pollution. Pipeline and tank should be cleaned to prevent the shedding of iron oxide skin and other High Speed Drilling Machine debris. Clean with a lint-free cloth or special paper. Can not try twine and adhesive for sealing material. Hydraulic oil according to design requirements, pay attention to oil temperature and oil pressure changes. Unload, unscrew the exhaust bolt for exhaust.
2. Piping links should not be relaxed.
3. Hydraulic cylinder base must have sufficient stiffness, otherwise the cylinder when the pressure into the bow-shaped upward, so that the piston rod bending.
4. Before installing the cylinder to the system, compare the parameters on the cylinder plate with the parameters at the time of ordering.
5. The center axis of the movable cylinder of the fixed foot type should be concentric with the neutral force of the load force to avoid the lateral force, the lateral force is easy to make the seal wear and the piston damage. When the hydraulic cylinder of the moving object is installed, the moving direction of the cylinder and the moving object on the surface of the guide rail is kept parallel, and its parallel degree is generally not more than 0.05mm / m.
6. Installation of hydraulic cylinder seal gland screws, the tightness to ensure that the piston in the whole trip to move flexible, non-blocking and light weight uneven phenomenon is appropriate. Screw too tight, will increase resistance to accelerate wear; too loose will cause oil spills.
7. The cylinder with the exhaust valve or venting plug must be installed at the highest point of the exhaust valve or venting rod in order to exclude air.
8. Axial both ends of the cylinder can not be fixed dead, and one end must be kept floating to prevent the effects of thermal expansion. As the cylinder by the hydraulic pressure hole punch for metal and thermal expansion and other factors, there is axial expansion. If the cylinder is fixed dead at both ends, will lead to deformation of the various parts of the cylinder.
9. Guide sleeve and piston rod clearance to meet the requirements.
10. Note that the parallelism and straightness of the cylinder and rail, the deviation should be 0.1 mm / length within. If the length of the busbar on the hydraulic cylinder is too wide, it is necessary to repair the bottom surface of the hydraulic cylinder or the contact surface of the scraping machine to meet the requirements. If the side bus is out of tolerance, loosen the hydraulic cylinder and the fixing screw, The accuracy of its side of the bus.
11. When disassembling hydraulic cylinders, do not damage the threads on the top of the piston rod, the cylinder threads and the surface of the piston rod. Prohibited hammer cylinder and piston surface, such as the cylinder bore and piston surface loss, does not allow sanding, grinding with fine oilstone Angle Punching machine carefully 1. Hydraulic cylinder and the surrounding environment should be clean. Tank to ensure that sealing, to prevent pollution. Pipeline and tank should be cleaned to prevent the shedding of iron oxide skin and other debris. Clean with a lint-free cloth or special paper. Can not try twine and adhesive for sealing material. Hydraulic oil according to design requirements, pay attention to oil temperature and oil pressure changes. Unload, unscrew the exhaust bolt for exhaust.

drilling steel Second, the correct maintenance and repair
First, the use of the cylinder in the course of the regular replacement of hydraulic oil, cleaning system filter, to ensure cleanliness and extend the service life.
Second, the fuel tank in each use, the full extension of the trial run to run 5 and then run with the load. Why do this? Doing so can exhaust the air in the system, preheating the system, can effectively avoid the presence of air or water in the cylinder block in the cylinder caused by gas explosion (or scorch) phenomenon, this will damage the seals , Resulting in cylinder leakage and other failures.
Third, the control system temperature, oil temperature will reduce the life of seals chamfer machine, long-term high oil temperature so that permanent deformation of the seal, or even complete failure.
Fourth, the protection of the outer surface of the piston rod to prevent the bumps and scratches on the seals of the damage, often clean the cylinder dynamic seal dust ring parts and exposed piston rod on the piston rod to prevent sticking on the surface is not easy to clean up Of the dirt into the cylinder internal damage piston, cylinder or seal.
Fifth, regular inspection of the thread, bolts and other parts of the connection, found a good fastening loose immediately.
Sixth, regular lubrication joints, to prevent corrosion or non-oil-free state of abnormal wear and tear.