Tornado Tempest Brushroll Axle K40409820

The Tornado Tempest brushroll axle (part# K40409820) is the shaft the roller brush turns on across the full 26-inch cleaning width of the TV400-W26-U cordless sweeper. Tacony lists it as Axle, Brushroll; the parts book records it as the lever assembly. It is retained by its nut (part# K73111430), washer (part# K73121160) and retaining ring (part# K73430180).

A shaft spanning twenty-six inches and carrying a brush pressed into carpet is working harder than its simple shape suggests. It has to stay straight under a load applied along its whole length, because any bow puts the brush into the carpet more heavily in the middle than at the ends. That shows as a strip of carpet down the centre of the path that is cleaned noticeably better than the edges of the same pass.

Compatible Models for the Brushroll Axle

• Tornado Tempest Wide-Area Cordless Carpet Vacuum Sweeper — Model TV400-W26-U

Symptoms that point to the axle

• Cleaning is visibly better in the centre of the path than at its edges.
• The brushroll runs out of true or vibrates at speed.
• The axle is visibly bent, or scored where the bearings run.
• Bearings fail repeatedly at one end.
• Play at the axle that is not in the bearings themselves.

Repeated bearing failure at one end is the signal worth acting on. Bearings do not usually fail asymmetrically unless something is loading them asymmetrically, and a bent or scored axle is the usual reason.

Fitting notes

Remove the battery pack before starting. The axle runs in ball bearings (part# K44011980) seated in the bearing flanges (part# K52530260) at each end. Roll the old axle on a flat surface before deciding — a bow that is invisible in the machine is obvious that way. Fit new bearings with a new axle; they have been running on the worn surface and will not last on the new one.

Twin City Vacuum has been selling and servicing Tornado equipment since 1956. Browse the full Tornado Tempest parts range, or see the Tornado Tempest TV400-W26-U machine. Manufacturer information is at tornadovac.com.

Frequently Asked Questions

What does the brushroll axle do on the Tornado Tempest?

It is the shaft the roller brush turns on, spanning the full 26-inch cleaning width and carrying the brush pressure load along its whole length.

How do I know if my brushroll axle needs replacing?

If cleaning is better in the centre of the path than at the edges, if the brushroll vibrates at speed, or if bearings keep failing at one end. Roll the axle on a flat surface to check for a bow.

What models is the brushroll axle (part# K40409820) compatible with?

The Tornado Tempest TV400-W26-U wide-area cordless carpet sweeper. PartSmart lists it against the Tempest alone.

Should I fit new bearings with a new axle?

Yes. The old bearings have been running on the worn shaft surface and will not give full life on a new one. Both are far cheaper to do together than in two separate strip-downs.

How do I order the brushroll axle (part# K40409820) or get help?

You can add the brushroll axle (part# K40409820) directly to your cart on this page, or call us at 763-535-0770. Our staff at 5415 West Broadway, Crystal, MN 55428 has been servicing Tornado equipment since 1956 and can help confirm the right part for your machine.

Questions? Call us at 763-535-0770 or visit us at 5415 West Broadway, Crystal, MN 55428.