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4.10.2 Y AXIS
1.
Turn off system power.
2.
Unplug system.
3.
Remove the top enclosure if not already removed.
a.
To remove the top cover, unclasp the four latches that hold the top cover down. Two
latches can be found on the right side of the machine and two can be found on the
left side of the machine.
b.
Ensure power cord is removed then gently lift cover up and off of the machine. This
will require two people to accomplish. Watch out for the one inch mirror in the front
left corner of the machine and the electronics and water lines on the right side of the
machine.
4.
Set Z stage axis in its lowest position.
5.
Move Y rail manually to the center of the processing area.
6.
Gently grasp final focus lens holder from front to back with right hand (reference Figure
10a).
7.
Gently grasp across Y rail with left hand (reference Figure 10A).
8.
Gently move final focus lens carriage base in right hand up and down and check for
excessive play. Excessive play is any movement up and down greater than approximately
1/64 of an inch.
9.
Gently rotate carriage base back to front and check for excessive play. Excessive play is
any movement greater than approximately 1/64 of an inch.
10. If it is determined there is excessive play, Y axis set screws will have to be tightened.
11. Open front door of machine.
12. While looking through front of machine, move the focus lens carriage (on the Y rail) until
you can see if there is a gap between any of the four nylon tip set screws and the Y rail
(reference Figure 10b). Place a sheet of white paper between the rear Y rail and the rear
frame rail to make the set screw gaps easier to detect.
13. If there is a gap at any set screw, carefully tighten the set screw until the gap between the
set screw and the bottom of the Y rail disappears. Do not turn the set screw more than
1/64" of a turn at a time.
