Normally this would mean removing architraves, intumescent strips and any fixing screw filling if not fixed through the Intumescent Groove.
To unscrew and remove fire stopping and re-pack, then re-fix the screw and then install same Fire Stopping over the new packing pieces, then re-fitting architraves and possible re-decoration, costs not only time, but possible money on other trades such as decorators, as well as Fire Stopping & Fire Door Installers.
With PAKnJAKs factory Installed, you only have to remove the Intumescent Strip, loosen the screw, then using the Allen Key provided, turn the PAKnJAK foot either Clockwise or Anti- Clockwise to increase or decrease the gap to door leaf size.
Once gaps are compliant, you re-screw tightly the fixing through the PAKnJAK foot to the structural opening, then re-fit the Intumescent Strip back in the door frame groove.
Adjustment of upto 3-4mm either side is achievable without removal of architraves and re-decoration, although in some circumstances it maybe required to install Fire Rated Interdens under the Hinge Blade to achieve compliant gaps.