Tornado Tempest Battery Housing Washer K73120520

The Tornado Tempest battery housing washer (part# K73120520) is the washer used on the battery housing and controls assembly of the TV400-W26-U cordless sweeper, with two fitted on the machine. Tacony and the parts book both name it simply Washer, so we identify it here by the assembly it belongs to rather than by a dimension neither source publishes.

The Tempest uses fourteen different washers across its assemblies, all catalogued under that one word, and they are not interchangeable — they differ in bore, outside diameter and thickness to suit the fastener and the material each one bears against. Ordering by number rather than by appearance is the only reliable approach, which is exactly why we have named this listing for its location on the machine.

Compatible Models for the Battery Housing Washer

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

When to replace it

• The washer is dished, cupped or has bedded into the surrounding plastic.
• It is corroded or pitted so it cannot seat flat.
• The fastener it serves has been found loose in service.
• It has been lost during a previous strip-down.
• Any time the joint it sits in has been dismantled.

A washer that has cupped is no longer spreading load over the area it was sized for, which is how a fastener in a moulded boss ends up pulling through. On a part this inexpensive, renewing rather than reusing is straightforward economics.

Fitting notes

Remove the battery pack before working inside the control area. Note the order of the stack as you dismantle — washer, spring washer and nut are not always in the order you would guess, and reassembling them differently changes how the joint loads. Seat the washer flat and tighten the fastener enough to clamp without distorting the moulding beneath it.

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 this washer do on the Tornado Tempest?

It spreads the clamping load of its fastener across the battery housing and controls assembly, so the fastener does not pull through or crush the material beneath it. Two are fitted on the machine.

How do I know if this washer needs replacing?

If it is dished or cupped, has bedded into the plastic beneath it, is corroded so it cannot seat flat, or if the fastener it serves has worked loose. Renew it whenever the joint has been dismantled.

What models is this washer (part# K73120520) compatible with?

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

The Tempest lists fourteen washers — how do I know this is mine?

They are all catalogued as Washer and they are not interchangeable. This listing is the one used on the battery housing and controls assembly. Order by part number, or call 763-535-0770 with the assembly you are working on and we will confirm it.

How do I order the washer (part# K73120520) or get help?

You can add the washer (part# K73120520) 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.