Method for disassembling centrifugal pump impeller and method for disassembling centrifugal pump coupling
A. Method of disassembling the centrifugal pump impeller
When disassembling the impeller, use a special wrench to unscrew the impeller nut in the same direction as the impeller rotation, remove the retaining washer, and the impeller can be removed. If it can not be removed, the sleeve can be sleeved with a sleeve, and the casing head can be gently tapped with a hammer. After the impeller is loosened, it can be disassembled. If the impeller is rusted on the shaft, it is immersed in kerosene and then removed.
B. Method of disassembling the centrifugal pump coupling
The coupling (or pulley) is keyed to the pump shaft. When disassembling, use a special tool (pull) to slowly pull the coupling (or pulley) from the shaft end. When disassembling the coupling, the lead screw should be placed on the front of the centrifugal pump shaft to force the coupling (pulley). Evenly, do not pull the hook, or use a hammer to avoid damage to the pump shaft, bearings and coupling.
C. Precautions for disassembling the centrifugal pump
(1) To prepare the workbench for placing parts, it can also be placed on the wooden board, and should not be thrown or thrown.
(2) Use special tools reasonably.
(3) When disassembling the tight parts, it is necessary to lay the wooden blocks and then hit them with a hammer. It is forbidden to slam the parts with a sledgehammer.
(4) The bonding surface, the friction surface and the smooth surface must be kept clean and must not be damaged or damaged.
