[R-390] reply to Chris's loose screws

[rbethman]

Roger, Et al,

This little tidbit of knowledge that I passed on is the very least that 
I can contribute to this list.

Such little things can really make a significant difference.

The Blue is indeed the ONE to use.

The other colors start into the realm of more force to remove, and the 
greater probability of *requiring* heat to be applied to allow it to loosen.

I use the Purple ONLY in specific places where I know I will not have to 
take it apart.  It WILL come loose, BUT the force factor starts entering 
the picture.

I reserve it for those things that get purchased and get assembled.  
They come loose even with lock washers in place.

<Sigh>  It then gets brought to me to resolve.  I get out the Purple 
simply because I do not wish to repeat the fix.

I can't say that I have used the Red.  I haven't had a need.

Regards,
Bob - N0DGN


On 3/3/2014 4:34 PM, Roger Ruszkowski wrote:
> Bob,
>
> I quite agree we went to a red Loctite for navy ship systems.
> I do not know who picked the red stuff or why that flavor was chosen.
> But Loctite has got to be the best stuff since a double knot
> in you shoe laces.
>
> But the question was why in 55 did they add lock washers.
> Because in 55 Loctite was not yet invented.
>
> Roger.
>
>
> -----Original Message-----
> From: rbethman <rbethman at comcast.net>
> To: r-390 <r-390 at mailman.qth.net>
> Sent: Sun, Mar 2, 2014 8:26 pm
> Subject: Re: [R-390] reply to Chris's loose screws
>
>
> List,
>
> If "we" really worry about vibration, then I would suggest what we used
> for R/C Helicopters.
>
> We used the Blue Loctite.  It resolved the loosening issue.  Also, it
> DOES come undone when using normal hand tools!
>
> A single drop or slightly less on the threads WILL do the job.  I never
> had a helicopter come apart.
>
> I have observed two that did NOT heed the advice!  They became a kit
> once more, requiring many parts to be replaced.
>
> This is important - as the purple and others "may" require heat to be added.
>
> I use either one when the situation dictates.
>
> Regards,
> Bob - N0DGN