REXROTH葉片泵安裝不當。兩帶輪中心距太小或兩軸不太平行，傳動帶緊邊安裝到上面，致使包角太小，兩帶輪直徑計算差錯以及聯(lián)軸傳動水泵兩軸偏心距較大等，均會造成水泵轉速變化。

    力士樂REXROTH葉片泵本身機械故障。葉輪與泵軸緊固螺母松脫或泵軸變形彎曲，造成葉輪多移，直接與泵體摩擦，或軸承損壞，都有可能降低水泵轉速。

    REXROTH葉片泵電動機因繞組燒毀，而失磁，維修中繞組匝數(shù)、線徑、接線方法改變，或維修中故障未*排除因素也會使水泵轉速改變。

    REXROTH葉片泵工作前，先將泵內充滿液體，然后啟動離心泵，葉輪快速轉動，葉輪的葉片驅使液體轉動，液體轉動時依靠慣性向葉輪外緣流去，同時葉輪從吸入室吸進液體。上海維特銳供應力士樂葉片泵

    在這一過程中，力士樂葉片泵的葉輪中的液體繞流葉片，在繞流運動中液體作用一升力于葉片，反過來葉片以一個與此升力大小相等、方向相反的力作用于液體，這個力對液體做功，使液體得到能量而流出葉輪，這時液體 的動能與壓能均增大。

上海維特銳可提供力士樂報關單等證明，在德國設立的分公司，有能力持續(xù)穩(wěn)定供應力士樂產品
R900563233 PV7-1X/06-10RA01MA0-10 R900560659 PV7-1X/63-94RE07MC0-08
R900535588 PV7-1X/40-71RE37MC0-08 R900534143 PV7-1X/10-20RE01MC0-10
R900533582 PV7-1X/16-30RE01MC0-08 R900506809 PV7-1X/100-118RE07MC0-16
R900506808 PV7-1X/63-71RE07MC0-16 R900504653 PV7-1X/10-14RE01MD0-16 513800437 0513R15A7V
PV72SM21JSB05PVV2-1X/040RA15DMB PVV2-1X/045RA15DMB PVV2-1X/055RA15DMB PVV2-1X/060RA15DMB
PVV2-1X/068RA15DMB PVV4-1X/069RA15DMB PVV4-1X/082RA15DMB PVV4-1X/098RA15DMB PVV4-1X/113RA15DMB
PVV4-1X/122RA15DMB PVV5-1X/139RA15DMB PVV5-1X/154RA15DMB PVV5-1X/162RA15DMB PVV5-1X/183RA15DMB
PVV5-1X/193RA15DMB PVV5-1X/193RA15DMB PVV21-1X/060-040RA15DDMB PVV21-1X/068-027RA15LUMB
PVV41-1X/098-027RA15UDMC PVV41-1X/122-036RA15DDMC PVV42-1X/098-045RA15DDMC PVV21-1X/068-027RA15LUMB
PVV51-1X/162-036RB15DDMC PVV51-1X/193-027RA15DDMC PVV52-1X/193-040RB15URMC PVV52-1X/193-055RB15UUMC
PVV54-1X/183-082RA15DDMC PVV54-1X/139-082RA15UUMC PVV52-1X/139-068RA15DLMC PVV5-1X/193RA15LMC
PVV54-1X/139-069RA15UUMC PVV2-1X/068RJ15UMB PVV4-1X/113RJ15UMC PVV1-1X/027LA15LMB
PVV42-1X/082-045RA15DDMC PVV1-1X/027RJ15DVB PVV54-1X/162-082RB15UUMC PVV41-1X/082-018RA15RRVC
PVV41-1X/082-046RA15UUMC PVV51-1X/139-027RA15DLMC PVV52-1X/139-068RA15DLMC PVV21-1X/040-018RB15UDMB
PVV5-1X/154RJ15DVC PVV21-1X/055-018RA15UUVB PVV5-1X/193RA15LMC PVV4-1X/122RA15RMC
PVV54-1X/154-113RJ15UUMC PVV21-1X/045-027RJ15UUMB PVV21-1X/068-027RA15URMB PVV51-1X/154-027RA15RRVC
PVV54-1X/193-122RA15UUVC PVV54-1X/193-113RA15UUVC PVV1-1X/046RA15DVB PVV41-1X/082-036RA15LLMC
PVV2-1X/060RA15LMB PVV54-1X/193-082RA15DDMC PVV52-1X/154-055RA15UUMC PVV42-1X/082-068RA15UUMC