Brush Roll - Kirby Avalir Carpet Shampoo 115757 It sets motor speed so

It sets motor speed so you can match suction to the task at hand

and when it wears or fails

Renewing the harness clears the fault rather than leaving a marginal link to fail again

carpet cleaning falls off sharply and the head simply glides over the pile

It houses the mechanism you operate to engage and disengage the brush roll belt

Brush Roll - Kirby Avalir Carpet Shampoo 115757 It sets motor speed soThis replacement brush roll for the 3449 agitates carpet fibers to loosen embedded dirt and debris for thorough cleaning. Worn bristles or a damaged brush roll leads to poor cleaning results, making this a key maintenance part for any upright vacuum. Inspect your brush roll regularly for signs of wear such as frayed bristles, tangled hair wraps, or bearing noise. A worn brush roll cannot effectively agitate carpet fibers, leading to poor dirt removal.