2、油液的污染进口液压泵|用油的油液污染主要是人为形成的污染。当替换液压滤芯时没有把滤筒内的油液排净或底子就不排出滤筒内的油液就抽换滤芯‚形成滤筒内的污染物从滤筒的排口直接流入油箱。当有颗粒进入到液压泵中就会形成配流面的一道划痕‚当划痕在高压油长期的冲刷下就会演变成沟槽‚就会形成液压泵的失效了。R900778549PGH4-2X/063LR07VU2-A436R900770609ABAPG-PGH4-080E4/200L-4-B0/SER900770179PGH5-2X/250RE07WU2R900766037PGH2-2X/006RR07VU2-A334R900754794PGH4-2X/063RE07WE4R900932165PGH4-2X/063RE07VE4R900932159PGH4-2X/050RE11VU2R900932141PGH4-2X/032RE11VU2R900932140PGH4-2X/025RE11VU2R900932139PGH4-2X/020RE11VU2R900245596PGH4-2X/025RE11VU2-A280BR900204884PGH5-2X/200RE07VE4-A388R900064616PGH3-1X/010LE07MU2R900061672PGH2-1X/006RE07ME4R900057641PGH5-2X/250RE07VU2-A388R900086557PGH5-2X/200RE07VE4R900086556PGH5-2X/160RE07VE4R900086518PGH5-2X/125RR11VU2R900086321PGH4-2X/040RE11VU2PGH4-2X/032RE11VU2力士乐REXROTH齿轮泵力士乐液压元件分类动力元件：齿轮泵,叶片泵,柱塞泵,螺杆泵；)