1. Impact occurs when the direction of liquid flow changes. At this moment, the control side of the reversing valve spool may be set to an angle of 40° (the original angle depends on the length of the sealing side) or the axial triangular buffer groove may be activated.
2. The throttling buffer device fails to mitigate impact.
1. The oil seal between the steel ball and the valve seat in the hydraulic cylinder’s buffer device may be defective, the paper pad at the end cover could be damaged, the lock nut of the piston might be loose, or the gap between the piston and the cylinder hole may be excessive. In such cases, the steel ball can be replaced, the valve seat joint can be ground, a new paper pad can be installed, the lock nut can be tightened, or the piston can be remade (the clearance between the cylinder hole and the piston should be 0.03 mm).
2. A triangular groove is present on the buffer plunger at the end of the buffer piston. When liquid is pumped through this groove and returned to the oil, it provides a buffering effect. However, if the outer edge of the Automotive Lift Repair Orlando buffer plunger and the inner hole of the end cover are worn and the gap is too large, the triangular groove will fail to provide adequate buffering. The piston and buffer plunger can be remade to fit the inner hole size of the end cover, or a layer of hard anchor material can be plated on the rounded surface of the buffer plunger to match the inner hole size properly.
3. A throttle valve is located outside the end of the buffer cylinder. If the comb nut in the throttle valve is loose or incorrectly adjusted, it can lead to hydraulic shock. The nuts can be tightened or readjusted to resolve this issue.
4. There are one-way throttle valves at both ends of the Automotive Lift Repair Orlando hydraulic reversing valve from the press manufacturer. If these throttle valves are improperly adjusted or the one-way valves are not sealing correctly, it can cause impact during the reversing process. In this case, the throttle valve adjusting screw should be tightened to increase the buffer damping appropriately. If the impact persists, it may indicate a sealing issue with the check valve, necessitating inspection of the check valve and its seat.
3. Air is present in the Automotive Lift Repair Orlando hydraulic system. A significant amount of air in the hydraulic system can cause the air in the reversing valve to compress and release intermittently, leading to hydraulic shock. It is important to check the air inlet and take preventive measures to eliminate air from the system.
To ensure that the filter operates effectively over a long period, certain requirements must be met during daily use. It is essential to regularly monitor the pressure difference between the inlet and outlet of the hydraulic cylinder filter. Based on the actual inspection conditions, assessments should be made, and any issues should be addressed promptly.
In general, a significant pressure difference may indicate that the hydraulic oil temperature is low, the viscosity is high, the oil is demulsified, or that the filter element is heavily contaminated and needs to be replaced or cleaned. Conversely, a small pressure difference may suggest that the filter element has been penetrated, the Automotive Lift Repair Orlando bypass valve at the filter’s inlet and outlet is improperly installed, or that there is insufficient oil flow.
Additionally, regular cleaning is necessary to maintain optimal filtration performance. The cleaning schedule should be determined based on usage frequency, and the filter element should be replaced when necessary.
The third level involves purification treatment. It is crucial to use specialized cleaning equipment to perform this treatment, ensuring the hydraulic cylinder operates smoothly.
Finally, appropriate filtration precision must be selected according to specific needs. For instance, high-precision filters are typically installed before hydraulic cylinder pressure pipes or high-precision components, such as transmission components, servo valves, and proportional valves. This helps keep the oil’s environmental contamination within acceptable limits.
If the Automotive Lift Repair Orlando hydraulic cylinder has a very high flow rate, a pump oil filter can be installed on the main pump oil line. Additionally, an independent bypass filter system can be utilized within the oil cooling system to simultaneously filter and cool the oil, providing multiple benefits.
Air, moisture, and cured substances can enter from the outside, and rusted metal powder can mix in during operation, damaging sealing materials, coatings, and other debris.
Oil contamination exacerbates wear between moving parts within the components, leading to blockages in the saving holes or restricting the movement range of slide valves, which prevents the components from functioning properly.
Statistics show that over 75% of system failures result from oil pollution. Therefore, it is essential to implement measures to prevent or minimize oil contamination. The main strategies include:
1. Thoroughly clean pipes, castings, and other components before installation, and ensure the hydraulic cylinder system is cleaned after final assembly.
2. Avoid using fiber-bearing fabrics (such as cotton yarn) for scrubbing during the assembly of each component.
3. Ensure the fuel tank is adequately sealed and install an air filter in the atmosphere.
4. Use reliable seals and hoses that are resistant to oil.
5. Choose the appropriate type and location for Automotive Lift Repair Orlando filters. The system should have both coarse and fine oil filters as needed. The oil filter should be inspected regularly, and any damaged filters should be replaced promptly.
6. Change the Automotive Lift Repair Orlando oil at regular intervals. Typically, oil should be replaced after more than 10,000 cumulative operating hours. Continuous use can degrade the oil’s lubricating properties and make it acidic, leading to corrosion of metal parts in the hydraulic cylinder system. Depending on the actual situation, oil can be changed every six months to one year for continuous use.
The hydraulic cylinder is comprised of two main components: the host machine and the control mechanism. The primary elements of the hydraulic press include the fuselage, main cylinder, ejector cylinder, and liquid filling device.