Set Screw 1/4-20 x 3/16″ w/Loc-Tite X8222
$2.99
Genuine Tacony OEM 1/4-20 x 3/16 inch set screw with pre-applied Loc-Tite (part# X8222) for the Tornado Marathon SE 900 (Model 98170) and Powr-Flite Prowler PFX900S. The threadlocker is already on it, which is why it is a part number.
The Set Screw 1/4-20 x 3/16″ w/Loc-Tite (part# X8222) is a genuine Tacony OEM replacement part from the chassis assembly of the Tornado Marathon SE 900 self-contained carpet extractor. It is the headless set screw, supplied with pre-applied thread locking compound, that clamps a component onto a shaft.
What the Set Screw 1/4-20 x 3/16″ w/Loc-Tite does
A set screw holds by pressing its point into a shaft, and it lives on a rotating assembly where vibration is constant and there is no head to lock against. That is why the threadlocker is factory-applied rather than left to the technician. The compound cures in the thread and stops the screw backing out, which is the failure that lets a pulley or collar walk along its shaft and take the whole drive out of alignment.
When to replace the Set Screw 1/4-20 x 3/16″ w/Loc-Tite (X8222)
Replace it whenever it is removed, because the pre-applied compound is single-use and a cleaned-up set screw is no longer the part that was specified. Also replace it if the drive socket is rounded or the point is mushroomed or worn flat.
Set Screw Loc X8222 — fitment and installation notes
Seat it against the flat or dimple on the shaft rather than on a round surface, or it will indent the shaft and work loose. Tighten firmly without stripping the socket, let the compound cure before running the machine, and never substitute a plain set screw and hope the joint holds. Tacony builds the Tornado Marathon SE 900 and the Powr-Flite Prowler PFX900S on a single machine platform, so this component carries across both brands rather than belonging to either one. It is a shared Tacony component and may fit additional models beyond those listed — call us and we will confirm against your serial number.
Compatible Models for the Set Screw 1/4-20 x 3/16″ w/Loc-Tite
- Tornado Marathon SE 900 — Model 98170
- Powr-Flite Prowler PFX900S
- Powr-Flite PFX900SG
Twin City Vacuum has been selling and servicing commercial floor-care equipment since 1956 from 5415 West Broadway, Crystal, MN 55428. We stock genuine Tacony parts and ship nationwide. Browse the full Tornado 98170 parts catalogue, or see the manufacturer at tornadovac.com.
Frequently Asked Questions
What does the Set Screw 1/4-20 x 3/16″ w/Loc-Tite do on the Tornado Marathon SE 900?
A set screw holds by pressing its point into a shaft, and it lives on a rotating assembly where vibration is constant and there is no head to lock against. That is why the threadlocker is factory-applied rather than left to the technician. The compound cures in the thread and stops the screw backing out, which is the failure that lets a pulley or collar walk along its shaft and take the whole drive out of alignment.
How do I know if my Set Screw 1/4-20 x 3/16″ w/Loc-Tite needs replacing?
Replace it whenever it is removed, because the pre-applied compound is single-use and a cleaned-up set screw is no longer the part that was specified. Also replace it if the drive socket is rounded or the point is mushroomed or worn flat.
What models is the Set Screw 1/4-20 x 3/16″ w/Loc-Tite (part# X8222) compatible with?
The Tornado Marathon SE 900 (Model 98170), the Powr-Flite Prowler PFX900S and the PFX900SG. It is a shared Tacony part and may fit further models; call us to confirm.
How do I order the Set Screw 1/4-20 x 3/16″ w/Loc-Tite (part# X8222) or get help?
You can add the Set Screw 1/4-20 x 3/16″ w/Loc-Tite (part# X8222) 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.
