Tornado Tempest Battery Ejector K40513520

The Tornado Tempest battery ejector (part# K40513520) is the contact carrier ejector on the TV400-W26-U cordless sweeper. Tacony lists it as Battery Ejector and the parts book as Contact Carrier Ejector — the same component described from two directions. When the release button is pressed and the latch withdraws, the ejector pushes the pack up and off its terminals rather than leaving the operator to pull it free.

That push matters more than it sounds. Breaking a 36V connection cleanly and quickly is what stops the contacts arcing as they part. A pack dragged slowly off its terminals by hand separates unevenly, and the resulting micro-arcing is what pits contacts and eventually causes the intermittent power faults that get blamed on the battery.

Compatible Models for the Battery Ejector

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

Symptoms that point to the battery ejector

• The pack has to be pulled or levered out after the release is pressed.
• The pack releases unevenly, lifting at one end only.
• Contact pitting or blackening on the pack or the carrier.
• The ejector is visibly cracked, bent or missing a spring leg.
• The pack sits proud after release instead of lifting cleanly.

Inspect the terminals at the same time. If the ejector has been failing for a while the contacts will have taken arcing damage, and replacing the ejector alone will not cure a fault that has moved into the contact carrier.

Fitting notes

Remove the battery pack before starting. The ejector works with the latch (part# K50369480) and the latch harness (part# K50979620) inside the battery mount (part# K50321850). Check its free travel before refitting the cover: it should return under its own power and lift the pack squarely. Test with a pack fitted and released a few times before putting the machine back into service.

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 battery ejector do on the Tornado Tempest?

When the latch is released it pushes the 36V pack up off its terminals so the connection breaks cleanly and quickly, which protects the contacts from arcing damage as they part.

How do I know if my battery ejector needs replacing?

If the pack has to be pulled or levered out after release, lifts at one end only, or sits proud instead of coming clear. Visible cracks or a bent spring leg confirm it. Check the terminals for pitting at the same time.

What models is the battery ejector (part# K40513520) compatible with?

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

The parts book calls this a contact carrier ejector — same thing?

Yes. Part# K40513520 appears as Contact Carrier Ejector in the Tacony parts list and as Battery Ejector in the dealer catalogue. One part, two names for the same job.

How do I order the battery ejector (part# K40513520) or get help?

You can add the battery ejector (part# K40513520) 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.