# PRD · Manual jaw adjustment and interfaces

Review screw, nut, knob, opening and travel without asserting operability.
Depends on: m1

## S3 · Review screw, nut and knob

Acceptance:

- Record screw-envelope crossings and missing passages, thread, nut restraint, axial retention and knob coupling.

## S4 · Review opening and travel

Acceptance:

- Show conditional 78 mm pad opening and both proposed 60 mm endpoints; flag the 8 mm opening-end support overlap.