Quote:
Originally Posted by slief
Wow. That's something we don't see very often. That was likely the result of a lack of maintenance & or a very old impeller. If you look between the break and the needle wheel, you can see how the shaft is dulled and worn down. That is the result of calcium buildup between the shaft and upper bearing. The calcium buildup likely overheated the shaft and made it brittle. The bearing likely sized or binded on the shaft as a result of calcium in there and the torque from the magnet spinnnig could have in theory sheared the shaft. I strongly suggest doing a breakdown and cleaning every 4-5 months. If you look at the thread below, proper cleaning is discussed including the bearing removal which is mentioned is post 2 of the thread below. If you do the regular maintenance, these pumps will never fail you.
http://www.reefcentral.com/forums/sh....php?t=2573406
That said, the impellers are likely out of stock in the US. We are waiting for our next shipment from Germany and awaiting the ETA. Its likely 2 weeks out before it arrives. At least that is our hope. You could order directly from Germany. The link below is the RD2000 impeller for an SuperMarin 250. Not sure what skimmer you have but if its not the SM250, you can choose spare parts and go to rotors and then it will let you choose from the different skimmer lines to find the correct impeller for your skimmer/pump. The price in the link includes VAT which would be deducted. Not sure what the shipping cost will be since I am based in the US but that would likely be your fastest method to get the impeller.
http://royalexclusiv.net/en/spare-pa...pump-2000.html |
Thanks for your reply. I suppose that is as good an explanation as any. I admit that it had been about 7-8 months since I performed a thorough cleaning of the pump and that is much longer than recommended but still seems odd. Also I am the second owner of this skimmer so I cant speak to prior maintenance. Perhaps previous wear under those types of condition also contributed to weakening the shaft. Not too mention this one of the earlierst supermarin 200s available so it is old as well. When I took the pump apart I didnt notice any excess build up on the rotor. Regardless this should serve as lesson to all about the importance of routine maintenance.
I appreciate the link you provided. I actually have a Supaermarin 200 but its the older model and my Pump is labeled as a BK2000 so I assume it dosnt matter that its running on a supermarin 200?
Also could any other damage have occurred to the motor block? Would it be more advisable to buy a complete pump assembly instead?
Here is the other end of the rotor for reference as well as a pic of the motor block.
