Defeating The Cover Interlock; Hr/Hm Alignment; Figure 3-2: Hene Bullseye Pattern; Figure 3-3: The Cover Interlock Switch - NORTHROP GRUMMAN Iklwa II TEM00 Service Manual

Defeating the Cover Interlock

HR/HM Alignment

© 2019 Cutting Edge Optronics

Figure 3-2: HeNe Bullseye Pattern

CAUTION
Defeating the cover interlock should only be used when the laser is being
serviced and the laser needs to be operated with the cover off in order to adjust an
optical component.
1. Pull the pin up to disable the cover interlock switch. See Figure 3-3.
2. Repeat for the second cover interlock switch.

Figure 3-3: The Cover Interlock Switch

1. Locate the access holes for high-reflection (HR) and harmonic mirrors (HM).
Notice the positions of HR and HM mirrors with respect to the direction of the
laser output in Figure 3-3.
Chapter 3: Tuning and Testing Procedures
Pull pin up
41 Patara II and Iklwa II Service Manual