●Anti-wear hudraulic oil iS recommended．1l。S  V i S C O S i t Y r a n g e：1 0～1 0 0 C S t f 1．8～1 3。E)，recommended viscosity 24cSt(500c) ●Filtration：the filtration rating shouldn。t be lower than  25 U m，a filter with filtration rating of 70-150 U m   should be fitted an inlet port and its rated flow more  than twice of that of the pump． ●Temperatu re range：ambient temperature 20-70  ~C； operating temperatu rel 0-60~C． ●Fire resistance fluid  Special seal should be used when using fi re  resistance fluid；for rated pressu re and max．speed Of  the pump，refere to that in the main performance data  lable． ●Foot and frame for pump must be reliable．solid and  good in vibration absorbence．  ●Horizontal mounting is recommended to maintain  necessary case fluid level．Concentricity of shafts  between pump and motor is important to pump life  and should be within击0．1 mm．Radial or axial load  cannt be applied on pump shaft and a flexible  coupling should be used and rigid linkage not  permited． ●To reduce noise and vibration of system caused by  trapped air，attachment flange at inlet port，all fittings  and piplines must be strictly sealed． ●Before starting the pump．you should check if the  inlet and outlet have been correctly connected and  the rotation of the pump is in line with the arrow in the  nameplate．To prevent the pump frOm cavitation  caused by the fi rst stating or stopping run for a longer   time．ai r should be bled frOm the pump delivery  line．This may be accomplished by loosening a  connection in the delivery line close to the pump．An  air bleed valvs is available for this pu rpose．When  starting，the pump should be repeatly jogged without  any load．After the pump may normlly run，it can be  actually primed． ●Suction lift of pump shouldn。t be higher than  500mm．  The cartridge kit design of VPV、VPVQ and SQPV  series vane pumps offers fast and efficient field  serviceability．When repalcing the cartridge kit，seals  inside the pump should be ckecked to avoid lhem  crimping；when tighting the fastenting screws，they  should be treated with even force in diagonal   direction