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A microscope is needed to visually determine that
the shear windows are at the zero point.
Use a felt tip pen to draw a line that bisects the
aperture on the Base window as seen in the Pic-
ture
Now draw a line that bisects the aperture in the
Lid Window.
Replace the Lid on the Base (with out using the
Lid Nuts) and focus with the microscope on the
line drawn on the Base window.
Now turn the Manual Gap Setting Tool to lower
the Lid. When both lines come into focus, i.e.
when both of the shear windows surfaces are
touching. This will be the manually set Zero
Point. The next step is to setup up the Zero Sen-
sors.
Base Window
Top Window
