A10VSO45DR/52R-PC12N00       
當(dāng)凸輪的凸起部分轉(zhuǎn)過(guò)去后，
在彈簧力的作用下，柱塞向下運(yùn)動(dòng)，
柱塞上部空間（稱為泵油室）產(chǎn)生真空度，
當(dāng)柱塞上端面把柱塞套上的進(jìn)油孔打開后，
充滿在油泵上體油道內(nèi)的柴油經(jīng)油孔進(jìn)入
泵油室，柱塞運(yùn)動(dòng)到下止點(diǎn)，進(jìn)油結(jié)束
A10V045DFR1/31R-PSC62K02
A10VSO45DFR1/31R-PPA12N00  
A10VSO45DR/31RPPB12N00        
A10V045DFR1/31R-PSC62K02
A10VSO71DFR1/32R-VPB22U99  
A10VSO71DFR1/31R-PPA12N00    
A10VSO71DFR1/32R-VPB12N00     
A10VSO71DFR1/31R-PPA12KB5     
A10VSO71DFR/31R-PSC62K07   
A10V071DFRI/34 PSC6402-SO225
A10VSO71FR1/31R-PPA12N00   
A10VSO71DFR1/31R-PPB12N00    
A10VSO71DFR1/31R-PPA12N00   
A10VSO71DFR1/31R-PSC62K07     
A10VSO71DFR/31R-PPA12KB3   
A10VSO71DR/31R-PPA12N00
A10VSO71DFR/31R-PPA12N00   
A10VSO71DFR1/31R-PPA12N00    
A10VSO71DFR1/31R-PPA12N00     
A10VSO71DFR1/32R-VPB22U99     
E-A10VSO71DR/31R-PPA12N00
A10VSO100DR/31R-PPA12N00   
A10VSO100DR/32R-VPB22U99    
A10VSO100DFR1/32R-VPB12N00    
A10VSO100DFR1/31R-PPA12K     
A10VSO100DFR1/31R-PPA12KB3  
E-A10VSO100PFR1/31R-PPA12N00
A10VSO100DFR/31RPSB12K24    
A10VSO100DR/31R-VPA12N00    
A10VSO100DR/31R-PPA12N00      
A10VSO100DFR1/31R-PPA12N00   
A10VSO100DFR1/32R-VPB12N00 
A10V0100DR/31R-PSC11N00
柱塞向上供油，當(dāng)上行到柱塞上的斜槽
（停供邊）與套筒上的回油孔相通時(shí)，
泵油室低壓油路便與柱塞頭部的中孔和
徑向孔及斜槽溝通，油壓驟然下降，
出油閥在彈簧力的作用下迅速關(guān)閉，
停止供油。此后柱塞還要上行，
當(dāng)凸輪的凸起部分轉(zhuǎn)過(guò)去后，
在彈簧的作用下，柱塞又下行。
此時(shí)便開始了下一個(gè)循環(huán)。
柱塞泵以一個(gè)柱塞為原理介，
一個(gè)柱塞泵上有兩個(gè)單向閥，
并且方向相反，柱塞向一個(gè)方向
運(yùn)動(dòng)時(shí)缸內(nèi)出現(xiàn)負(fù)壓，這時(shí)一個(gè)
單向閥打開液體被吸入缸內(nèi)，
柱塞向另一個(gè)方向運(yùn)動(dòng)時(shí)，
將液體壓縮后另一個(gè)單向閥被打開，
被吸入缸內(nèi)的液體被排出。
這種工作方式連續(xù)運(yùn)動(dòng)后就形成了連續(xù)供油 。
A10VSO100DR/31R-PTA12N00    
A10VSO100DR/31R-PPA12N00    
A10VSO100DFR1/32R-VPB12N00
A10VSO140DFR1/31R-PPB12N00  
A10VSO140DFLR1/31R-PPB12K01 
A10VSO140DR/31R-PPB12N00      
E-A10VSO140DFR1/31R-PPA12N00 
A10VSO140DFR1S/31RPPB12N00  
A10VSO140DFR1/31R-PPB12N00
A10VSO140DFLR/31R-PPB12N00  
A10VSO140DR/31R-PPB12N00    
A10VSO140DRS/32R-VPB12N00     
E-A10VSO140D/31R-PPB12N00    
A10VSO140DFR1/31R-PPB12N00  
A10VSO140DR/32R-VPB12N00
AE-A10VSO140D/31R-PPB12N00  
A10VSO140DR/31R-PPB12N00    
A10VSO140DRS/32R-VPB12N00     
A10VSO140DFR1/31R-PPB12N00   
A10VSO140DFR1/32R-VPB12N00  
A10VSO140DRS/32R-VPB12N00
A4VSO40LR2G/10R-PPB13N00    
A4VSO71DFR/10X-PPB13N00     
A4VSO71DR/10X-PPB13N00     
A4VSO71DRG/10X-PPB13N00    
A4VSO71LR2/10R-PPB13N00      
A4VSO71LR2D/10R-PPB13N00
A4VSO125DFR/22R-PPB13N00   
A4VSO125DR/22R-PPB13N00     
A4VSO125DR/22R-VPB13N00   
A4VSO125LR2/22R-PPB13N00  

A4VSO125LR2G/22R-PPB13N00    
A4VSO125LR2N/22R-PPB13N00
A4VSO180LR2N/22R-PPB13N00   
A4VSO250DFR/30R-PPB13N00    
A4VSO250DR/30R-PPB13N00    
A4VSO250DRG/30R-PPB13N00   
A4VSO250LR2/30R-PPB13N00     
A4VSO250LR2G/30R-PPB13N00
A4VSO250LR2N/30R-PPB13N00   
A4VSO180DFR/22R-PPB13N00    
A4VSO180DR/22R-PPB13N00    
A4VSO180DRG/22R-PPB13N00
柱塞泵zui重要的部件是軸承，
如果軸承出現(xiàn)游隙，則不能
保證液壓泵內(nèi)部三對(duì)磨擦副的
正常間隙，同時(shí)也會(huì)破壞各
磨擦副的靜液壓支承油膜厚度，
降低柱塞泵軸承的使用壽命。
據(jù)液壓泵制造廠提供的資料，
軸承的平均使用壽命為10000h，
超過(guò)此值就需要更換新口。
拆卸下來(lái)的軸承，沒(méi)有專業(yè)
檢測(cè)儀器是無(wú)法檢測(cè)出軸承的
游隙的，只能采用目測(cè)，
如發(fā)現(xiàn)滾柱表面有劃痕或變色，
就必須更換
A4VSO40LR2G/10R-PPB13N00    
A4VSO71DFR/10X-PPB13N00     
A4VSO71DR/10X-PPB13N00     
A4VSO71DRG/10X-PPB13N00    
A4VSO71LR2/10R-PPB13N00      
A4VSO71LR2D/10R-PPB13N00
A4VSO125DFR/22R-PPB13N00    
A4VSO125DR/22R-PPB13N00     
A4VSO125DR/22R-VPB13N00    
A4VSO125LR2/22R-PPB13N00   
A4VSO125LR2G/22R-PPB13N00    
A4VSO125LR2N/22R-PPB13N00
A4VSO180LR2N/22R-PPB13N00   
A4VSO250DFR/30R-PPB13N00    
A4VSO250DR/30R-PPB13N00   
A4VSO250DRG/30R-PPB13N00   
A4VSO250LR2/30R-PPB13N00    
在更換軸承時(shí)，應(yīng)注意原軸承