Tornado Tempest V-Ribbed Belt K63480580

The Tornado Tempest V-ribbed belt (part# K63480580) drives the brushroll from the brush motor (part# K66135760) on the TV400-W26-U cordless sweeper. Tacony lists it as V-Ribbed Belt, Tempest. It runs on the belt pulley (part# K56250390).

A V-ribbed belt is a deliberate choice over a flat or toothed belt. Its multiple small ribs give a large contact area for the grip, while staying flexible enough to run round small pulleys without heating up. That combination lets the belt slip momentarily rather than shear when the brushroll snags something — which protects the motor and the brush at the cost of the belt, and makes the belt the intended sacrificial part in that chain.

Compatible Models for the V-Ribbed Belt

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

Symptoms that point to the belt

• The brushroll turns slowly, or stops under load while the motor still runs.
• A squeal on start-up or when the brush meets carpet.
• The belt is glazed, cracked, or has ribs worn away.
• Rubber dust around the pulley area.
• The belt has stretched and no longer sits with proper tension.

Belts are consumables on any brush machine, and this one is deliberately the weakest link in the drive. Renewing it at service intervals is cheaper than the motor or brush damage a belt failure can otherwise mask.

Fitting notes

Remove the battery pack before starting. Inspect the pulley (part# K56250390) for wear while the belt is off — a worn pulley eats a new belt quickly. Tension is important in both directions: too slack and the belt slips and glazes, too tight and it loads both the motor and the brushroll bearings. Set it as the original was, turn the brushroll by hand through a full revolution, and confirm the belt tracks centrally on the pulley.

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 V-ribbed belt do on the Tornado Tempest?

It transmits drive from the brush motor to the brushroll. The ribbed form gives a large grip area while staying flexible, and it is designed to slip rather than shear if the brush snags — protecting the motor and brush.

How do I know if my belt needs replacing?

If the brushroll turns slowly or stalls under load while the motor still runs, if there is a squeal on start-up, or if the belt is glazed, cracked or has worn ribs. Rubber dust around the pulley is another sign.

What models is the V-ribbed belt (part# K63480580) compatible with?

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

How tight should the belt be?

As the original was. Too slack and it slips and glazes; too tight and it loads the motor and the brushroll bearings. After fitting, turn the brushroll by hand through a full revolution and check the belt tracks centrally on the pulley.

How do I order the V-ribbed belt (part# K63480580) or get help?

You can add the V-ribbed belt (part# K63480580) 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.