[TowerTalk] Rotator screw sealing.

[Chris]

Using castle nuts and cotter pins is also an option.  Does require the hole in the bolt in the right place though!  Also putting a mark on the nut and bolt after it is tight with a paint pen to mark their respective location will tell you if the nut has loosened the next time you do an inspection.

Chris
KF7P







On Nov 27, 2012, at 10:34 AM, Missouri Guy wrote:

> 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 at 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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