VDC系列日本NACHI不二越雙聯葉片泵
VDC-11A-2A3-2A3-20, VDC-11A-2A3-1A5-20, VDC-12A-2A3-2A3-20,
VDC-12A-2A3-1A5-20, VDC-12A-1A5-2A3-20, VDC-12A-1A5-1A5-20,
VDC系列日本NACHI不二越雙聯葉片泵
VDC-11A-2A3-2A3-20, VDC-11A-2A3-1A5-20, VDC-12A-2A3-2A3-20,
VDC-12A-2A3-1A5-20, VDC-12A-1A5-2A3-20, VDC-12A-1A5-1A5-20,
VDC-22A-2A3-2A3-20, VDC-22A-2A3-1A5-20, VDC-13A-2A3-1A3-20,
VDC-13A-2A3-1A5-20, VDC-13A-1A5-1A3-20, VDC-13A-1A5-1A5-20,
回程板與壓板的非正常磨損。選用補油泵供油的柱塞泵，運用后，操作人員每日需對柱塞泵查看1-2次，查看液壓泵作業動態是不是正常。如發現液壓缸速度下降或悶車時，就應該對補油泵潰散查看，查看葉輪邊沿是不是有現象，內齒輪泵空位是不是過大。
自吸油型柱塞泵，液壓油箱內的油液不得低于油標下限，要堅持滿意數量的液壓油。液壓油的清潔度越高，液壓泵的運用壽數越長。
VDC-11B-2A3-2A3-20, VDC-11B-2A3-1A5-20, VDC-12B-2A3-2A3-20,
VDC-12B-2A3-1A5-20, VDC-12B-1A5-2A3-20, VDC-12B-1A5-1A5-20,
VDC-22B-2A3-2A3-20, VDC-22B-2A3-1A5-20, VDC-13B-2A3-1A3-20,
VDC-13B-2A3-1A5-20, VDC-13B-1A5-1A3-20, VDC-13B-1A5-1A5-20
液壓泵用軸承
柱塞泵主要的部件是軸承，假定軸承出現游隙，則不能使得液壓泵內三對磨擦副的正常空位，一同也會損壞各磨擦副的靜液壓支承油膜厚度，下降柱塞泵軸承的運用壽數。據液壓泵制造廠供應的材料，軸承的均勻運用壽數為10000h。
拆開下來的軸承，沒有查看儀器是無法查看出軸承的游隙的，只能選用目測，如發現滾柱表面有劃痕或變色。
VDC系列日本NACHI不二越雙聯葉片泵
