Static field route #1007

The S-and-drive cleat will not seat or keeps stopping halfway

S-and-Drive, Slips & Rectangular Joint Assemblyyellow

Stop hammering harder. Check alignment, squareness, S-cleat seating, drive direction, raw edges, and whether the duct is being pulled crooked by weight or support.

Open in Field Rescue Open category

Field checklist

Check that both duct ends are square and lined up.
Verify S-cleats are fully seated and facing the right way.
Check that the drive is straight and not catching on bent metal.
Support the duct so weight is not opening the joint.
Ask before bending, cutting, or burying the gap with mastic.

Ask foreman

The drive is stopping halfway at [location]. The joint looks aligned/not aligned and the S-cleat is [condition]. Do you want me to reset the joint, adjust support, or replace the drive?

Do not

Do not mushroom the drive, crush the duct corner, or hide a bad fit-up with mastic.

Why it matters

A drive usually refuses to seat because the joint is crooked, unsupported, bent, or assembled in the wrong sequence.

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