Patent ID: 8707556

Claim:
An injection nozzle sleeve servicing system comprising: a guide having first and second ends and an interior chamber, the guide having threads on the first end; an installer screw dimensioned to fit inside the interior chamber, the installer screw having a threaded end and a pushing end; an external nut having first and second threads, wherein the first and second threads on the external nut are threaded in different directions, and wherein the first thread on the external nut is configured to communicate with the threads on the guide and the second thread on the external nut is configured to communicate with the threads on the installer screw; and a rotational lock in the guide configured to prevent the installer screw from rotating with respect to the guide, wherein when the first thread on the external nut is engaged with the threads on the guide and the second thread on the external nut is engaged with the threads on the installer screw, and the external nut is turned with respect to the guide and the installer screw to cause relative axial movement between the external nut and the guide, the installer screw moves axially with respect to the guide at a different rate than the axial movement of the external nut and the guide.