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1) main points for picking out the leak proof packing of stirring shaft
2)unscrew the nut of spring  to pick out all springs(2)and bolt

(3)pull out the packing gelan (4) if it is locked should hit with nylon hammer to release it and then rotate the packing bolt to pull the packing bolt to pull out the packing gelan (5)start the stirring beween packing and vanes of the stirring shaft with an iron stick with cloth after clean ing for 10-15 minutes though driving the stirring shaft get rid of the sundries on the packing (6)hook out the packing gasket with iron wire main points for checking packing clean the packing and molar surface of vanes of sstirring shaft with organic solvent check wheather the packing and molar surface of vanes of stirring shaft is scraped or worn if necessary should replace it )the original ppacking is unit type and and the apare new one is half to half two sheet type if the replacement of the old one is equired should pick it out after cutting 9)main point for reinstalling packin 1)wind the bolt into the screw hole of the original packing base 2)install the packing gland into tje bolt 3)aimthe screw hole of hole of packing gaslet at the screw hole of grand(6) if the replacement with new sapre two-sheet tpr one is require the pinhole of each piece of packing should be fixed on the pin bolt gland put the fixed packing and gland into the pacling base install spring and screw cap into the bolt and adjust tighness of four spring it is better that the power will be leaked