Sight Glass(Singleside)
710400011
(8*8*10;NG:400g)                                   

Sightglass after the rotor component into pump cavity, application of hands (or with a mechanical hand stuck pump shaft keyway) turn the rotor, carefully check to see if the blades in the blade groove retractile, check is higher than that of the rotor blade at the same time. If higher than that of the rotor blades, must will be polished blade. As high as the summits of the rotor or slightly below the rotor. 5, when loading pump cover. Should be sight glasses within the copper sleeve with a little grease oil rite sight glass, so that the assembly and protect the skeleton oil seal.When assembly screws on the pump cover, should be in strict accordance with the diagonal order two tight.