the latch, handle, hinge or ordinary running hardware no longer lines up or operates normally. Replace accessible compatible roller assemblies on an accepted panel, set the height and check ordinary travel and stops.
Signs: the door sags, rubs, sticks or has uneven gaps around the opening or the latch, handle, hinge or ordinary running hardware no longer lines up or operates normally. Causes: normal wear in hinges, latches or compatible mechanical hardware or loose fixings, minor alignment drift or ordinary timber movement.
Some adjustment screws sit behind caps or are obstructed by surrounding finishes. Photograph what is safely visible without dismantling the door. Blocked access can alter the work plan; a damaged adjuster should not be forced to compensate for a worn or incompatible roller.
Check the accepted panel through its ordinary movement after replacement. Stops and closing alignment should be considered alongside the rollers. The task does not include powered operators, access-control integration or certification of a specialist door system.
Keep the running surface clear and follow the hardware instructions. Report renewed drag rather than repeatedly forcing the panel. Limits: Ordinary non-powered safely handled panels only. No heavy specialist lifting, glazing work, powered operators, structural changes or access-control integration.