6212A Manual Version 14.56.docx
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Verifying Alignment Procedures
Set Head Close Correct Position
Horizontal and vertical alignment should be close before performing any alignment with Measure/Headtest or
Lasercheck Windows software. If Lasercheck is badly misaligned, than the software cannot locate the specular
laser beam for vertical alignment and has little or no signal for horizontal alignment.
Align Horizontally
Horizontal alignment works best on a clean, rough surface (greater than 10 microinches) with a dominant
roughness direction, for example a ground surface. With alignment aid Measure/Align, set the horizontal
alignment as close to optimal as possible. This is done by maximizing the value of SUM displayed on
Measure/Headtest software or by maximizing the horizontal alignment percent within Measure/Align.
Align Vertically
Vertical alignment works best on a smooth surface. Move the head up or down over a smooth area (or a rough
area coated with a film of oil). Use Measure/Headtest to position the specular beam on # 6.
Verify Alignment
Check visually and with software that horizontal alignment has not changed during the process of performing
vertical alignment.
As surfaces get rougher, resolution of Lasercheck decreases and sensitivity to misalignment increases. Mounting
and alignment stability becomes more important to maintaining high repeatability from Lasercheck. The
important issue to appreciate is that on smoother surfaces, Lasercheck has more tolerance to misalignment,
shaking, vibrating, etc. On rougher surfaces, Lasercheck does not have as much tolerance for misalignment,
shaking, or vibrating.