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8/4/2012 7:24:01 AM EDT
Recently picked  one up and getting it going.

When installing the two piece slip ring that surrounds the tube-the ring has small screws-do these screw into corresponding holes in the ocular or is the ring just put in place by hand and that's all.  If it does need to be screwed in-what is the right tool to use?  Thanks.
8/4/2012 7:46:41 AM EDT
[#1]
Im sure one of the guys who have those will be along to tell you for sure, but search this on youtube

AN/PVS-4 Tube Replacement

Not allowed to link it, but thats a great video..


Brent
8/4/2012 6:58:32 PM EDT
[#2]


They are friction screws to stop the tube coming unscrewed from heavy vibration during operation. They just give a friction fit against the ocular when screwed in.




Loosen them off before installation.








Regards

David
8/5/2012 9:27:37 AM EDT
[#3]
Got it. Thank you.
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