Tornado Tempest Axle Nut M10 K73111430

The Tornado Tempest axle nut (part# K73111430) retains the brushroll axle on the TV400-W26-U cordless sweeper, with two fitted. Tacony lists it as nut M10-08, Axle. The Tempest uses nine nuts catalogued under the single word Nut, ranging from M4 to M10; this is the M10 specified for the axle.

Tightening a nut on a shaft that has to keep turning is a different job from tightening one on a static joint. There is a correct point at which the axle is held against movement along its length while still spinning freely, and going past it preloads the bearings — which is a common cause of a brushroll that feels slightly stiff by hand and quietly costs battery runtime while the machine is working.

Compatible Models for the Axle Nut M10

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

When to replace it

• The thread is stripped, crossed or galled.
• The flats are rounded so it cannot be torqued properly.
• It has corroded onto the axle.
• It has been found loose in service.
• The axle assembly has been dismantled.

Fitting notes

Remove the battery pack before starting. The nut pairs with the axle washer (part# K73121160). Tighten until the axle has no end float, then check the brushroll turns freely by hand. If it has gone stiff, back off slightly — a preloaded bearing will run hot and fail early.

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 axle nut do on the Tornado Tempest?

It retains the brushroll axle, holding it against movement along its length while leaving it free to turn.

How do I know if it needs replacing?

If the thread is stripped or galled, the flats are rounded, it has corroded onto the axle, or it has been found loose in service.

What models is this nut (part# K73111430) compatible with?

The Tornado Tempest TV400-W26-U wide-area cordless carpet sweeper. PartSmart lists it against the Tempest alone, and two are fitted per machine.

How tight should it be?

Tight enough that the axle has no end float, loose enough that the brushroll still turns freely by hand. Over-tightening preloads the bearings, which makes them run hot, fail early and cost battery runtime.

How do I order the axle nut (part# K73111430) or get help?

You can add the axle nut (part# K73111430) 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.