Question about Polaris 3900 Sport Pool Cleaner ()

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All wheels on 3900 do not turn together. How do I fix this.

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  • 640 Answers

The first step that you should take if your pool cleaners wheels are not turning correctly is to check the wheel RPM. It should be between 30 and 36. If it is lower than 30, open the adjustable valve (if you have one) on your return line to allow more water flow. Also, make sure that your filter, skimmer, and hoses are clear of debris and do not have any leaks or cracks that could change your suction and lower wheel RPM. Finally, you can remove the blue restrictor disk from the UWF.You might also need to adjust your thrust jet if it is causing the cleaner to move more quickly on one side.

Posted on Apr 12, 2011

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Posted on Jan 02, 2017

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jharwell668
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SOURCE: The wheels on my Polaris

There are a couple things that you should check with these pool cleaners if the wheels are functioning properly. Check the filter screen in the in-line filter assembly and clean if necessary.Make sure that you do not have any debris or obstructions that could be halting wheel function. Even though you seem to have plenty of water, check the RPM and make sure they are between 28 and 32.

Posted on Mar 17, 2011

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Related Questions:

1 Answer

Sport 3900 is doing wheelies will not stay level to clean


1. Check the wheel RPM. If not in the 30-36 RPM range, refer to the manual for adjusting the wheel RPM.

2. Adjust the thrust jet downward.

3. Verify the backup valve is cycling. Lift the valve out of the water and watch the jet. It should come on and go off.

4. Check for water inside the head float.

5. Empty the filter bag.

You can download the 3900 Manual from the Polaris site
http://www.polarispool.com/Pressure/Polaris-3900.aspx


It will show you how to check the wheel rpm and how to adjust the thrust jet and check and adjust the float.

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The single wheel on polaris 3900s does not drive The shaft turns but the wheel does not grip the shaft


I have had this problem before.You will have to buy a new wheel or glue the inner part back in.FYI if you ever need to replace the bearings in the gear box you do not have to buy a new gear box.Bearings are available. They just do not tell you.

Oct 22, 2011 | Polaris 3900 Sport Pool Cleaner ()

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The wheels on my Polaris 3900 don't move. Plenty of water coming thru the thrust and the tail wags. When I move the wheels manually they all move together.


There are a couple things that you should check with these pool cleaners if the wheels are functioning properly. Check the filter screen in the in-line filter assembly and clean if necessary.Make sure that you do not have any debris or obstructions that could be halting wheel function. Even though you seem to have plenty of water, check the RPM and make sure they are between 28 and 32.

Jan 30, 2011 | Polaris 3900 Sport Pool Cleaner ()

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My Polaris 3900 Sport Pool Cleaner's doing tight circles in the pool because the single left-side wheel is not turning at all, while the 2 right wheels are turning normally. How do I fix it?


I had a similar issue. When I lifted the unit out of the water while it was operating only the single wheel was rotating. I turned it off and removed the bag and hose. I flipped it over on a workbench and unscrewed the three recessing screws securing the base plate. Once the plate was removed I noticed the metal chain driving the two wheels had come off on the far side of the inner sprocket. I worked the chain back onto the sprocket and tested it by rotating the single wheel and verifying the other two wheels rotated. After reassembly I put the unit back in the pool and it drove straight and high on the sides. Hope this helps someone :-)

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2 Answers

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If the cleaner is running in circles to the left the chain has come off the double side. To fix take bottom off and place chain where it is riding on the center sproket. To test turn one wheel and all wheels should turn. Also on the axel blocks the wheels are attached to can be adjusted to allow more tension on the chain.

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