[NL series vertical mud pump installation and removal: 

 (A), demolition 
 1, remove the electric cross-eyes or face plates, outlet pipe. 
 2 Remove the volute and impeller butterflies every light to the back of the expansion of the impeller, the dissolution of key impeller. 
 Demolition Taipa driven coupling half, and then demolished key, and then motor disassembly, and the support tube separation. 
 4, the demolition of the pump seat support tube bolt so that it points Jian. 
 5, removed from the shaft sleeve bearings. 
 (B), the installation 
 1, all the parts to check whether there are defects, pad of paper on both sides must be coated with a layer of book butter, bearing with two-thirds of the butter. 
 2, skeleton oil seal must be filled butter into the pump seat, and then mounted on the bearing. 
 3, the 0-ring on the sleeve interior coated with butter. 
 4, for installing the seat in the motor, put a pad of paper to block oil ring mounted on the shaft and support tube with screws. 
 5, put a pad of paper, bearings, bushings, keys, pump base and impeller fitted, tighten the impeller nut rotating impeller by hand rotate flexibly to. 
 6, placed on the paper pad mounted on the pump casing, and mounted with screws on the filter. And then hand Slide the impeller to rotate flexibly to. 
 7, the shaft installed on the keys and the driven shaft coupling, motor shaft mounted on a key and active coupling, and then fixed the motor and motor seat bolts. Requirements of the installed and active coupling with the driven coupling between the axial clearance should be 1 to 1.5 mm.