berita perusahaan tentang Cina TERBAIK Roll membentuk mesin pompa

1.view the boom cylinder's leakage. Rises in the most simple way is to arm and see if their freedom significantly reduced. If whereabouts apparently opened oil tank view, seal if it is worn it should be replaced;

2.review the operating valve. First of all clean the safety valve, see the spool is worn, such as wear and should be replaced. Safety valve installation if there is no change, then view the operation valve wear, its clearance limit usually 0.06mm wear Stern should be replaced;

3.measure the pressure of hydraulic pumps. If the pressure is too low, adjust pressure adjustment, then clarify severe wear of hydraulic pump.