Axial flow pump rubber bearings how to replace

ZLB-type small and medium-sized axial flow pump generally have two rubber bearings, the replacement of all the replacement, if the pump impeller center line to the bottom of the distance is greater than the pump shaft length is simple,
1, remove the speaker.
2, remove the impeller nut (moving head) to remove the impeller.
3, open the next rubber bearing, pay attention to remove the bolt, you can use the top wire out of the next rubber bearings.
4, release the packing seal gland.
5, release the rigid coupling. Pay attention to the pump shaft and so suddenly drop off to prevent injury.
6, with a tool to remove the next pump shaft coupling nut, remove the pump section,
7, remove the packing gland, packing box, rubber bearing.
8, clean up the combination of surface, for new rubber bearings. Such as impeller parts can not continue to use the best simultaneous replacement.
9, the first impeller in the order on the pump shaft, you must tighten the nut.
10, assembled in reverse order.
11, from the packing gland above the gap at the manual water or with the lubrication of water, manual car.