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Torqing AIL bolts?
Posted: Fri Feb 17, 2012 10:17 pm
by Legeorgen
Hi everyone,
On final assemble of the flaperons am I correct to assume the castle nut is torqued tight, so the AIL-26 steel bushing is held tight and does not to turn inside the brass bushing, like the rudder and elevators hinges? Why then use a castle nut and cotter pin instead of a lock nut? Thanks for any help in advance.
Bruce G 357R
Torqing AIL bolts?
Posted: Fri Feb 17, 2012 10:17 pm
by Legeorgen
I meant that to say the AIL-26 is tight on the bolt so as to not rotate around the bolt but turns in the brass bushing.
Bruce G 357R
Torqing AIL bolts?
Posted: Fri Feb 17, 2012 10:17 pm
by Wayne G. O'Shea
Yes and I meant to answer you Bruce! YES the bolt should be tight and the steel bushing held tight, so it rotates in the brass bushing which needs to be kept lubricate. I use LPS1 after the initial coat of grease during assembly. You <should> use the castle nut and cotter just in case the steel seizes to the brass and tries to turn on the bolt, although I have seen a few with Nytrol nuts in there that seem to work just fine.All depends on your inspector come final inspection, but keep in mind that these bolts aren't in view, like all the others on the airplane, for easy walk around inspections.
Cheers,
Wayne G. O'Shea
www.irishfield.on.ca
Torqing AIL bolts?
Posted: Fri Feb 17, 2012 10:17 pm
by Legeorgen
Thanks Wayne, for the quick response to the AIL bolts and bushings...Bruce G
Torqing AIL bolts?
Posted: Fri Feb 17, 2012 10:17 pm
by Brian Cross
Hi Wayne
LPS1 - is that a spray on type of lubricant?
Brian #328R
At 10:23 PM 6/26/02 -0400, you wrote:
Yes and I meant to answer you Bruce! YES the bolt should be tight and the steel bushing held tight, so it rotates in the brass bushing which needs to be kept lubricate. I use LPS1 after the initial coat of grease during assembly. You <should> use the castle nut and cotter just in case the steel seizes to the brass and tries to turn on the bolt, although I have seen a few with Nytrol nuts in there that seem to work just fine.All depends on your inspector come final inspection, but keep in mind that these bolts aren't in view, like all the others on the airplane, for easy walk around inspections.
Cheers,
Wayne G. O'Shea
www.irishfield.on.ca
Torqing AIL bolts?
Posted: Fri Feb 17, 2012 10:17 pm
by Wayne G. O'Shea
Yes LPS is a brand name and then 1, 2, 3 etc are different products in their line up. The LPS 1 is a greaseless lube for fine precision stuff. I like it, as being greaseless it doesn't attract dirt and it seeps into places that spray grease won't. It stays wet and doesn't dry stuff out like say WD40 does. I also use their LPS 3 product for protecting engine cylinder walls and many other things while in storage for up to a year or so. They also have a product that is used like Boeing sheild for coating wing interiors etc (but I have never bothered with it on the 6061 aluminum) as well as other products for various purposes.
LPS1 is available in Aerosol and spray bottles, as well as bulk containers. You can get a can of the aerosol at Leavens for slightly less than $20 and pickup a brochure on other products available most likely while your there. Don't know if they sell the spray bottle (which is MUCH more economical but not as handy for getting into the tight spots, as you can't use the little extension tubes with it).
Cheers,
Wayne G. O'Shea
www.irishfield.on.ca
----- Original Message -----
From: Brian Cross (
BCROSS2160@ROGERS.COM)
To: murphy-rebel@dcsol.com (
murphy-rebel@dcsol.com)
Sent: Thursday, June 27, 2002 10:47 PM
Subject: Re: Torqing AIL bolts?
Hi Wayne
LPS1 - is that a spray on type of lubricant?
Brian #328R
At 10:23 PM 6/26/02 -0400, you wrote:
Yes and I meant to answer you Bruce! YES the bolt should be tight and the steel bushing held tight, so it rotates in the brass bushing which needs to be kept lubricate. I use LPS1 after the initial coat of grease during assembly. You <should> use the castle nut and cotter just in case the steel seizes to the brass and tries to turn on the bolt, although I have seen a few with Nytrol nuts in there that seem to work just fine.All depends on your inspector come final inspection, but keep in mind that these bolts aren't in view, like all the others on the airplane, for easy walk around inspections.
Cheers,
Wayne G. O'Shea
www.irishfield.on.ca