Tornado Tempest Brushroll Belt Pulley K56250390

The Tornado Tempest brushroll belt pulley (part# K56250390) is the ribbed pulley that transmits drive from the V-ribbed belt (part# K63480580) to the brushroll on the TV400-W26-U cordless sweeper. Tacony lists it as Pulley, Brushroll.

Its ribbed profile has to match the belt exactly, because that matching is where the grip comes from. As the grooves wear the belt sits deeper, contact area falls, and the belt begins to slip under exactly the loads it should be transmitting. The belt then glazes and is usually replaced, which restores the drive briefly — but a worn pulley destroys a new belt quickly, and the cycle repeats at increasingly short intervals.

Compatible Models for the Brushroll Belt Pulley

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

Symptoms that point to the pulley

• Belts are failing or glazing far sooner than they used to.
• The brushroll slips under load with a belt that is correctly tensioned.
• The pulley grooves are visibly worn, rounded or shiny.
• Rubber dust accumulating around the pulley.
• The belt will not track centrally on the pulley.

Short belt life is the diagnostic. If a belt that used to last a year is now lasting weeks, inspect the pulley before fitting another.

Fitting notes

Remove the battery pack before starting. The pulley mounts on the brushroll assembly and is secured with an M5 x 10 screw (part# K73060710) and washer (part# K73122640). Fit a new belt with a new pulley — the old belt has worn to the old pulley’s profile. Set tension as the original, then turn the brushroll by hand and confirm the belt tracks centrally.

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 belt pulley do on the Tornado Tempest?

It transmits drive from the V-ribbed belt to the brushroll. Its ribbed profile has to match the belt exactly, because that matching is where the grip comes from.

How do I know if my pulley needs replacing?

The clearest sign is belts failing or glazing far sooner than they used to. Also look for visibly worn or shiny grooves, a brushroll that slips with a correctly tensioned belt, or a belt that will not track centrally.

What models is the belt pulley (part# K56250390) compatible with?

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

Should I fit a new belt at the same time?

Yes. The old belt has worn to the old pulley’s profile and will not seat correctly on a new one. Fitting both together is the only way to get full life from either.

How do I order the belt pulley (part# K56250390) or get help?

You can add the belt pulley (part# K56250390) 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.