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Discussion: Compass DIY

in: Orienteering; General

Aug 9, 2023 7:49 PM # 
j8spencer:
Hi! I have a Silva Ranger 515 CLQ (with the quadrature bezel), and I have a badly bubbled 515 CL (the regular 360 bezel). I'd like to combine them and get a 515 CL compass. I've been thinking just to swap the bezel, but I'm not sure how to get it off without damaging the plastic badly on one or both compasses.

Can anybody give good instructions to remove/replace a silva bezel without damage?
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Aug 10, 2023 3:51 AM # 
gruver:
No experience with that model but it may be similar to an old one I have. The ring with the serrations that you grip to turn, is separate from the splayed out ring with the numbers on. A very thin knife may be pushed in between, and the two pieces gently levered apart. (I think I would try and do it evenly all round rather than lever from just one side.)

The serrated ring comes off; the numbered ring stays in the base, and the capsule with the needle then lifts out. There was also a circular metal ring (maybe copper) which I think may give a desirable amount of friction - just guessing. When replacing I found that the capsule has a couple of notches which need to be lined up to sit down properly; and the serrated ring similar. It may be possible to put it on wrongly (with N next to 180 say, heh heh).

A total accident that I was able to find one of these. As Gord says on another thread, this type of compass is not used much in orienteering around here.

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