Ramps load mainly for piston stop bit inaccurate, insufficient thrust, slow down, job insecurity, etc, Ramps internal leakage of hydraulic cylinders including hydraulic cylinder seals, rod seals and piston seals and closures are excessive wear etc. caused by the leakage. Cause the piston rod and the sealing cap seal leaks, the sealing member wrinkle, crush, tear, abrasion, aging, deterioration, deformation, etc., we should replace with new seals.
Ramps piston seal wear is mainly due to excessive speed control valve regulating properly, resulting in excessive back pressure and a seal improperly installed or hydraulic oil contamination. Followed by a foreign substance enters the assembly and sealing materials quality is not good, the consequences are slow, weak, can also cause serious damage to the piston and the cylinder, a "pull-cylinder" phenomenon. Approach is to adjust the speed control valve, the control installation instructions shall make the necessary operation and improvement; cleaning the filter or replace the filter, hydraulic oil.