Maintenance and disassembly:

The characteristic of this self priming centrifugal pump is its simple and reliable structure, and its durability. Under normal pump conditions, it is generally not necessary to disassemble and maintain the pump frequently. When a malfunction is found, it can be eliminated at any time< br/> When maintaining the pump, attention should be paid to several main parts:
a. Rolling bearing: When the pump is running and the bearing is worn to a certain extent, it must be replaced< br/> b. Front sealing ring and rear sealing ring: When the sealing ring is worn to a certain extent, it must be replaced< br/> c. Mechanical seal: Mechanical seals should not be opened for inspection in general, provided they do not leak liquid. If severe leakage occurs at the leakage port at the lower end of the bearing body, the mechanical seal should be disassembled and inspected. When installing and disassembling mechanical seals, it is necessary to handle them with care, pay attention to the cleanliness of the mating surface, protect the mirror surface of the static and dynamic rings, and strictly prohibit knocking and collision. The main cause of leakage caused by mechanical sealing is the roughening of the friction mirror surface. The repair method can be to grind the end face of the friction pair to restore the mirror surface. Another reason for leakage in mechanical seals is" O"&# 39; Improper installation or deformation and aging of the O-ring (or buffer pad). At this point, it is necessary to adjust or replace the" O&# 39; Reassemble the O-ring seal< br/> 2. Pump disassembly sequence:
a. Remove the motor or remove the coupling< br/> b. Remove the bearing body assembly, check the radial clearance between the impeller and the front ring, and check if the impeller nut is loose< br/> c. Remove the impeller nut, pull out the impeller, and check the radial clearance between the impeller and the rear sealing ring< br/> d. Loosen the fastening screws of the mechanical seal, pull out the dynamic ring part of the mechanical seal, check the fit of the dynamic and static ring end faces, and check" O” The sealing condition of the O-ring (or buffer pad)< br/> e. Unscrew the fastening nut of the coupling and pull out the coupling< br/> f. Remove the bearing end cover and remove the pump shaft and bearings< br/> g. Assemble in reverse order during installation.

Model Description:

Performance parameters