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kenryan
Joined: 20 Oct 2009
Posts: 426
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 Posted: Mon Jun 08, 2015 6:27 am Post subject: d-sub spin out |
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Yesterday I was disconnecting the D-Sub 9 cable from my Dynon ADAHRS so that I could double check that I had the correct wires going to the D-Sub 15 on the other end. When I unscrewed the long screws that are part of the back shell, I noticed that one of the nuts on the ADAHRS box was turning. This was not a big problem, because the wing is still open and I was able to grab it with pliers which allowed me to remove the connector. But once the wing is buttoned up, it would be very difficult to repeat the process. The only solution I can think of is a special inspection opening, just to address this fault. Also, I don't know if that turning nut represents any other hazard, like something coming loose in flight and shorting out my ADAHRS.
Any advice would be appreciated.
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ARGOLDMAN(at)aol.com
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| Posted: Mon Jun 08, 2015 7:19 am Post subject: d-sub spin out |
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Greetings,
Don't know if it is ever a good idea to "bury anything electronic as given enough time and vibration it will fail--perhaps not in your life time. Additionally, you may want to get it out and in for updates or upgrading.
One suggestion is to mount the device directly on the inspection panel covering the opening referred to below. For service, remove the panel with attached device, unplug it and do what needs to be done.
In terms of the sub-d fixation problem.. If the device is out of warranty, open the case, use some loctite on the retaining nut, tighten appropriately and close.
the screws that hold these things in are generally #6 and this "twirling problem is not unique.
If the device is in warranty send it back to dynon and let them deal with it.
Rich
In a message dated 6/8/2015 10:10:43 A.M. Central Daylight Time, keninalaska(at)gmail.com writes:
| Quote: | Yesterday I was disconnecting the D-Sub 9 cable from my Dynon ADAHRS so that I could double check that I had the correct wires going to the D-Sub 15 on the other end. When I unscrewed the long screws that are part of the back shell, I noticed that one of the nuts on the ADAHRS box was turning. This was not a big problem, because the wing is still open and I was able to grab it with pliers which allowed me to remove the connector. But once the wing is buttoned up, it would be very difficult to repeat the process. The only solution I can think of is a special inspection opening, just to address this fault. Also, I don't know if that turning nut represents any other hazard, like something coming loose in flight and shorting out my ADAHRS.
Any advice would be appreciated.
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