crooked shaft on newer 6105

edsbeaker

Member
I'm having a problem keeping my 6105 running from 0-100%. It will do it's thing for anywhere from 1-6 cycles and then seems to lock up for a couple cycles, and then continues. It's hard for me to tell if this is happening when I run it on 30-100% because I can't judge the flow rate difference as well.

Anyway, I have noticed that the shaft that the impeller slides over, I believe it is permanently mounted, is not centered in the opening, it looks like it leans over in one direction. I was wondering if this would be causing the impeller to stop turning for a couple cycles and then start up again.

Also it is being controlled by an Apex.

Could you please let me know what may be causing the problem, and what can be done to fix it?

Thanks
 
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There are a few possibilities but I would put a bent shaft as least likely.

At least in the past we had problems with a loose fit of the Apex cable and solutions ranged from pulling back to cutting back some of the rubber boot on the Apex cable plug to our pump connector so it would make firmer contact.

A loose power connection is another possibility, if the power connection at the pump connector feels loose, let me know and I can email you a picture with a simple fix.

Unless the shaft was so bent the drive magnet was rubbing on a side of the pump I wouldn't think this is a likely culprit, they can be a bit off of center.
 
Hi Roger,

I did have a problem when I first installed these pumps with the rubber boot needing to be cut back. I did that last May and that connection seems to be quite tight.

What I ended up doing to check if it had anything to do with the Apex or power connection, though, was to switch the left pump, non-working one, onto the right side pump and apex connections. It still kept getting stuck. The right side pump on the left side connections continued to work flawlessly. I also tried holding the power cord tightly in the receptacle while I was testing it to make sure the connection was tight

Here's some new info, though. I watched the impeller, (I guess I didn't really take notice of this before I contacted you). Before it locks up it does move maybe 1/8 of a turn and then stops. Does this suggest that it isn't related to the power source since it stops dead after beginning to turn?

So please just let me know what the next step should be. If you think it may still be the power cord, please send me that drawing you said you had and I can try that first.

Thanks
 
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