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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