Output Window Replacement - NORTHROP GRUMMAN Iklwa II TEM00 Service Manual

Output Window Replacement

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3. Cut three 3/16" wide by 3/4" long .002" plastic shims. Place the shims
between the outer diameter of the lens/mirror and the inner diameter of the
mount in three places.
4. Ensure that the outer diameter of the optic does not come into contact with the
inner diameter of the mount.
5. Ensure that the optic is flat against the ledge where the epoxy is placed.
Figure 2-14: Shim Placement
6. Allow the epoxy to cure at room temperature for 24 hours.
7. Remove the shims and put three additional drops of 2216 epoxy in their place.
Allow 24 hours for that epoxy to cure at room temperature.
1. Blow off debris on outside of laser housing and cover using nitrogen or clean,
dry air.
2. Wipe the housing clean using TechniCloth III™ wipes and isopropyl alcohol.
3. Remove the (4) #4-40 screws and locking hardware from the output window
frame.
4. Remove the output window frame, o-ring and output window. Ensure the
o-ring between the output window and the laser housing remains installed.
5. Inspect the output window and clean if necessary. If damaged, rotate the
output window to a new orientation. Replace the output window if needed.
6. Install the output window into the laser housing with the o-rings. There should
be one o-ring on each side of the output window.
7. Install the output window frame using 3/32" hex wrench and the mounting
hardware. Torque the #4-40 screws to 5.5 in-lbs.
Chapter 3: Tuning and Testing Procedures
25 Patara II and Iklwa II Service Manual