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 Post subject: Threadlock recommended?
PostPosted: Mon Dec 19, 2016 11:05 pm 
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Joined: Wed Sep 18, 2013 8:15 pm
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Just got my lp10 and adjusted the trigger. Thought about using threadlock to keep the screw tight, so the trigger won't move out of position. Decided against it. Thoughts?


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PostPosted: Mon Dec 19, 2016 11:27 pm 
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Joined: Thu Aug 18, 2016 7:53 am
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Wait. Those threads would be a real pain to loosen safely if you haven't gotten it to exactly where you want it.


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PostPosted: Tue Dec 20, 2016 12:49 am 
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Joined: Sun Oct 10, 2004 1:12 pm
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Location: Pacific NW
If Loctite 'blue' is used, it can be defeated with heat. Don't do it on tiny trigger or sight screws because the heads can strip out when you try to loosen the screw.

One way of keeping a screw from drifting is to 'lightly' paint 'a few' threads 'only' in the middle of the screw with contact cement. Allow it to completely dry to a hard rubber state before using the screw. Degrease the screw before doing this.


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PostPosted: Tue Dec 20, 2016 3:44 am 
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Joined: Sat Apr 02, 2011 12:14 pm
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I always use coloured nailpolish u lock very small screws. You can break it easily when turning the screw with a screwdriver, but the screw will not loosen by vibrations. When it does the nailpolish is cracked and shows movement of the screw. Works wonderfull on the very small screws in the rearsight /colourfilters.

Albert T
(The Netherlands)


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PostPosted: Tue Dec 20, 2016 4:28 am 
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Location: Costa Rica, Central America
I would only use threadlock on my springer guns where I know the recoil and vibrations will eventually loosen up the screws.

On the trigger of my LP10, I wiped the groove that clamps onto the rail and the threads of the tightening screw with isopropyl alcohol. That assures me that there are no traces of grease or oil. Then tighten the screw with just enough torque without buggering the head slot and your trigger won't move outta position.


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PostPosted: Tue Dec 20, 2016 7:24 am 
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Joined: Sun Sep 04, 2016 10:59 am
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Location: A new global Great Britain
Use an easily removable grade.

http://www.loctite.co.uk/threadlocking-9150.htm

you will need to count out turns to apply and return to setting.


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PostPosted: Tue Dec 20, 2016 11:53 am 
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Joined: Mon Dec 28, 2015 4:40 pm
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no, not recommended, don't do anything.

Make a picture of the screws (the ones that are important) so you see if they turned after a month, other than that don't do anything


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PostPosted: Tue Dec 20, 2016 12:01 pm 
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Location: Staffordshire, United Kingdom
Albert T wrote:
I always use coloured nailpolish u lock very small screws. You can break it easily when turning the screw with a screwdriver, but the screw will not loosen by vibrations. When it does the nailpolish is cracked and shows movement of the screw. Works wonderfull on the very small screws in the rearsight /colourfilters.

Albert T
(The Netherlands)


Good idea but what colour is best? ;-))


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PostPosted: Tue Dec 20, 2016 12:27 pm 
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Location: Lisbon, Portugal
Brian Girling wrote:
Good idea but what colour is best? ;-))

If you want to go there, the only right answer is someting with sparkes! ;)


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PostPosted: Tue Dec 20, 2016 1:39 pm 
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Location: Scottsdale AZ
Anything but "Hot Pink" would be gauche.


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PostPosted: Tue Dec 20, 2016 2:41 pm 
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Joined: Wed Nov 09, 2011 7:38 pm
Posts: 174
Rover,

Streetwalker red always worked for the Navy and Marine teams.

I have used purple locktite on small screws before, it requires like 10 inch points to break but works to prevent vibratory loosening.


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PostPosted: Tue Dec 20, 2016 6:00 pm 
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Joined: Fri Oct 01, 2010 6:43 am
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Location: Sydney, Australia
Albert T wrote:
I always use coloured nailpolish u lock very small screws.


I think Albert's idea is the safest for small screws.

It is often not recognised that Loctite does not work on some metal substrates such as aluminium and stainless steel - two metals we come across quite often. If you want to use threadlocker on these metals the threads must be cleaned and you have to use a primer first - all a bit too complicated. Stick to the nail varnish!

Bob


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PostPosted: Wed Dec 21, 2016 3:57 am 
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Location: A new global Great Britain
If you are fixing industrial sprockets to shafts semi permanently then yes degrease and maybe primer. If you just want to gum up a small trigger adjuster then even a bit of oil will not hurt. It just needs the oxygen supply cut off for the anaerobic setting to take effect.


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PostPosted: Wed Dec 21, 2016 11:38 am 
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Location: San Diego, CA
Yes, the purple Loctite 222 is the right one to use.

Joel


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PostPosted: Wed Jan 04, 2017 12:48 pm 
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Joined: Thu Oct 13, 2016 10:57 am
Posts: 37
Location: Massachusetts
For setscrews you might want to consider a "wicking" formula. They are low strength and penetrate the threads without having to disassemble/readjust.

https://www.amazon.com/Loctite-Threadlo ... 00880SHEK/

I'd be sure you really need a threadlocker at all though. Over time you'll need to clean the residue, and that's quite a small screw to service.


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PostPosted: Wed Jan 04, 2017 1:29 pm 
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Location: New Zealand
joel wrote:
Yes, the purple Loctite 222 is the right one to use.

Joel


I wouldn't use anything, but if you insist then this is the one to use.


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