Capt Kangeroo
Senior Member
I have a internal raw water intake pump for my Raritan Atlantes head that I'm overhauling. The pump appears to be the same as any typical small 12V impeller pump but I can not get the impeller out of this one. The thing that has me flustered is that the impeller shaft that protrudes slightly out of the impeller is a round shaft so what keeps the shaft from spinning inside the impeller? There is no flat on the shaft, keyway, nothing, and the damn impeller simply will not pull out so its either frozen to the shaft or there is something holding it. It is an absurd idea but has anyone ever seen an impeller that press fits on a shaft and if so how would you pull them as there is no way to get a puller into this small housing.
I even removed the back off the motor and tried tapping on the shaft to drive the armature backwards out of the motor and off the impeller but I did not want to get too aggressive until I was certain whether it is stuck or there is something holding it on. Raritan has a crappy exploded view but it is no help.
Any thoughts aside from get a bigger hammer.
I even removed the back off the motor and tried tapping on the shaft to drive the armature backwards out of the motor and off the impeller but I did not want to get too aggressive until I was certain whether it is stuck or there is something holding it on. Raritan has a crappy exploded view but it is no help.
Any thoughts aside from get a bigger hammer.