Gyre 3k

Dec 06, 2017
Chaz Cerone wrote
I was cleaning my gyre 3k, I used your video for reference. I am unable to get the impeller out of the motor. I tried using a marker cap like the video but it doesn't move and feels like it could break the shaft if I push too hard. I ended up reassembling the wave maker and putting it back in my tank. It is working fine, I just want to do the proper preventive maintenance on it. Any suggestions?
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5 Answers
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Dec 06, 2017
Michael S. agent wrote
Hello Chaz, thank you for reaching out on this matter.
The bushing and side cage are slightly hard to press out of the motor block on the gyre models.
You do have to apply some force on the shaft to get the side cage unit to start moving, once it is pressed out half way or so you should be able to grip it with a small pair of pliers and remove the rest of the way.
Make sure you are pressing against the correct side as shown in the video.
Sometimes in order to get a good start you can lay down a soft towel and give a good push by hand down on the motor block to get the shaft assembly to push the side bushing cage from the housing and then use the pen cap to finish pushing it out farther.

If you have a build up of calcium carbonate and or organic material on the housing then this will make it slightly more difficult to remove. I would suggest soaking the unit in vinegar / water solution @ 50/50 mix to loosen up and dissolve some of the build up.
Let me know if you need any further assistance.

Sincerely Michael, Coral Vue support
Dec 06, 2017
Chaz Cerone wrote
I soaked it over night and there was no calcium build up on it. Like I said, I just want to do the preventive maintenance. I will try doing what you said and when the impeller shaft breaks, you will replace it.
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Dec 07, 2017
Michael S. agent wrote
Hello Chaz Cerone
I understand what you are describing with the pump shaft assembly being hard to remove and a bit un nerving the first time taking it apart, many people, myself included has been in the same situation as you are in with the removal process. It takes some getting used to and considerable pressure to get the assembly to start moving.
Make sure that you follow the instructions on the video and ensure that you are not side loading the ceramic shaft during this process as it will break. Keeping it straight as you can and using enough force to get the assembly moving outward is not going to cause damage if done properly.
I cannot stress enough the part about side loading the shaft in any way and ensuring you are trying to remove the proper side as one side of the motor block bushing cage does NOT come out the housing.
The Techs here use a screw driver handle with a good flat surface, place the motor block on top of the handle and use this to help push the assembly out, it is very tight tolerances but will come out.
When installing the assembly using a socket that fits the size of the bushing cage, tall enough to allow the shaft to stay protected and tap lightly with a small mallet to seat the bushing cage. Deep sockets work well for this part.
Please let me know if I can help you any further in this matter.

Sincerely Michael
Aug 08, 2022
ezequiel arias wrote
Hola Michael. Quisiera saber si se puede conseguir el eje de cerĂ¡mica de la 3k. Soy de argentina
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Aug 08, 2022
Dale agent wrote
Thank you for contacting us. Please go to https://support.coralvue.com/ and submit a ticket, one of our reps will be happy to help you.