Grizzly G0911 Owner's Manual page 81

21. Close top loading door and verify secondary
Mirror #3 and focal point alignment by press-
ing Pulse button on control panel. Compare
results with Figure 130.
Dark, Even Contrast
Correct Focus=
Inconsistent Contrast
Incorrect Focus=
Figure 130. Focal point alignment examples.
— If laser beam focal point is dark and even,
alignment is optimal. Proceed to Step 25.
— If laser beam focal point is inconsis-
tent and diffused, adjustment is required.
Proceed to Step 22.
22. Loosen lock nuts on (3) brass thumbscrews
located behind Mirror #3 assembly (see
Figure 131).
Thumbscrew
(1 of 3)
Lock Nut
(1 of 3)
Mirror #3
Assembly
Figure 131. Mirror #3 assembly components.
Model G0911–G0914 (Mfd. Since 05/21)
Defined Edge
Diffused Edges
Tension Bolt
(1 of 2)
Laser Head
Assembly
23. Adjust direction of beam path by tightening
thumbscrews depending on desired direction
of beam travel (see Figure 132).
Move Beam Up
Move Beam Down
Move Beam Left
Move Beam Right
Figure 132. Mirror thumbscrew adjustment.
24. Repeat Step 21.
25. Tighten all lock nuts on mirror assembly
thumbscrews if loosened for adjustment. DO
NOT tighten thumbscrews!
26. Re-install (4) cap screws and (1) left laser
tube cover removed in Step 1, then proceed
to Step 37 on Page 75.
-79-