Tornado Tempest Debris Bag Clamp Screw K61001890

The Tornado Tempest debris bag clamp screw (part# K61001890) is the M4 x 10 shouldered screw the debris bag clamp pivots on, with two fitted. Tacony lists it as Screw, Clamp for Debris Bag and the parts book records it as Screw M4 x 10 w/Collar.

The collar is the important part of that description. A shouldered screw is designed so that tightening it clamps against the collar rather than against the component it passes through, which means the clamp can be pulled up fully tight and still pivot freely. Substitute a plain M4 x 10 and one of two things happens: tighten it properly and the clamp seizes, or leave it loose enough to pivot and it works its way out.

Compatible Models for the Debris Bag Clamp Screw

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

When to replace it

• The collar is worn down so the clamp binds when tightened.
• The thread is stripped, crossed or galled.
• The drive recess is rounded out.
• A plain screw has been substituted at some point.
• The clamp assembly has been dismantled.

Fitting notes

Remove the battery pack before starting. The screw passes through the clamp (part# K50978040) and its sleeve (part# K51106870) into the nut (part# K73116240). Tighten fully — with the correct shouldered screw that is the right answer, and a clamp left deliberately loose to allow movement will shake free. Check the clamp pivots freely after tightening; if it binds, the collar is worn and the screw needs replacing rather than slackening.

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 debris bag clamp screw do on the Tornado Tempest?

It is the shouldered pivot screw for the debris bag clamp. Its collar lets the screw be tightened fully while the clamp still turns freely.

How do I know if my clamp screw needs replacing?

If the clamp binds when the screw is tightened, the thread is damaged, the drive recess is rounded, or a plain screw has been substituted for the shouldered one.

What models is the clamp screw (part# K61001890) 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.

Can I use a plain M4 x 10 screw instead?

No. Without the collar you must either tighten it and seize the clamp, or leave it loose and have it work its way out. The shoulder is what makes the joint both tight and free to pivot.

How do I order the clamp screw (part# K61001890) or get help?

You can add the clamp screw (part# K61001890) 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.