If you have a drill press, you can drill a hole, or holes, across
the head on the bolts, then "safety wire" (see Wikipedia) the heads
to prevent them from loosening. Safety wiring is a essential practice
on aircraft, etc. BTW, I looked on Wikipedia and saw that
the ends of the twisted wires shown in the photo were not
bent back on themselves....obvious unsafe practice.
Bolts that are already drilled may be available at surplus
stores. Also, I *think* I've seen them at www.mcmaster.com
Try http://www.airpartsinc.com/ also.
Charlie, N0TT
On Tue, 27 Nov 2012 6:08:40 -0500 <caraj@cox.net> writes:
>
> Hi All:
> Is there a sealer or some other recommended method to improve
> maintaining
> rotator outside case screw tightness.
> Checking my HAM IV after hurricane Sandy showed all four bottom
> rotator
> screws 2 turns looser.
> The commonly sold (red/blue) nut tightener available at Harware
> stores does nothing.
> 73,
> John, K2SFS
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