66
Figure 58: Locating of Fittings Connected to the Herriott Cell
3.
Using the appropriate size wrenches, undo the fittings.
4.
Locate the screws holding the main laser board cover plate in place. See Figure 67.
Figure 59: Location of Screws for the Main Board Cover Plate
5.
Support the cover plate in order to prevent it from falling out.
6.
Remove the screws by using a Phillips No. 2 screwdriver.
7.
Remove the main laser board cover plate.
8.
Locate the detector shown in Figure 68.
