The collimator has an integrated TILT adjustment for aligning the beam axis to the mechanical axis. This prevents vignetting of the collimated beam as well as diffraction arising from the clipped beam.
If you want to point the collimated laser beam to a certain point and need to tilt the beam axis, DO NOT do this using the TILT mechanism of the 60FC-T. You need to hold the fiber collimator in a adequate holder, e.g. a mirror mount with the respective amounts of freedom.