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New Eureka vacuum cleaner belt keeps slipping off

I need to replace the belt (part 61110a) on my Eureka 4870 series vacuum cleaner.  The new one is *very* tight when I install it and after a minute or two of vacuuming, it slips off.  I have replaced the belt twice, yet each belt slips off. Only the original very-worn belt seems to work.  
I manually turned the roller and can see that the belt wants to wander off of the roller, but I cannot see any apparent reason why it does that.  Any suggestions as to what I might do to keep it on?
Thank you.

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  • gatotten Jan 27, 2008

    My problem is similar.....I don't lose the belt but it won't turn the roller when it is in the carpet mode, unless the handle is almost in the upright position. It looks like the idler or tensioning roller is not putting enough pressure on the belt to keep the rollers turning. Your belt may be jumping off the drive for the same reason. I'll take mine apart to see if I can find any excessively worn parts that would cause the belt to remain loose. I am sure that I can put a bushing (a piece of bicycle inner tube) over the roller and it will work - but that's a last resort - if I cannot properly identify and correct the problem



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You may have a bad brush roll, part #61250-1, or the base itself has a problem and isn't letting the brush roll sit straight so it can be in alignment.

Posted on Jan 15, 2008


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