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From: randy snarr <randylsnarr@yahoo.com>
Subject: Re: [LML] Re: 235/320/360 nose strut question
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Will do Chris..
Good ideas!!!

Randy

"Zavatson, Christopher J (US SSA)" <Christopher.Zavatson@baesystems.com> wrote: Randy,
Not that this will help your current nose strut situation, but for
anyone with virgin parts it may be useful.  Early on I switched out all
bolts that are used as hinges in aluminum linkages with close tolerance
bolts(AN173-AN183 series).  These are held to right around .001
undersize.  Your typical 1/4" bolt will run .002-.003 and can be as bad
as .004 undersize.  
Switching bolts plus annual disassembly, cleaning and greasing has
prevented propagation of wear.  The bolt that attaches to the nose gear
gets replaced every few years.  The metal tangs will wear groves in the
bolt over time if left unattended, even if a close tolerance bolt is
used - more surface area is needed on those tangs.  By periodically
replacing this bolt, the two pieces will tend not to chew each other up.
This is not an ideal solution but it has worked well for nine years and
1000+ hours.  Hopefully your excessive wear in only 100 hours is an
anomaly.  A redesign of this joint would certainly ease the maintenance
burden and could guarantee a better fit right from the start.  Keep us
posted on your findings.
Chris



Chris Zavatson
N91CZ
360std
www.N91CZ.com


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Will do Chris..<br>Good ideas!!!<br><br>Randy<br><br><b><i>"Zavatson, Christopher J (US SSA)" &lt;Christopher.Zavatson@baesystems.com&gt;</i></b> wrote:<blockquote class="replbq" style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"> Randy,<br>Not that this will help your current nose strut situation, but for<br>anyone with virgin parts it may be useful.  Early on I switched out all<br>bolts that are used as hinges in aluminum linkages with close tolerance<br>bolts(AN173-AN183 series).  These are held to right around .001<br>undersize.  Your typical 1/4" bolt will run .002-.003 and can be as bad<br>as .004 undersize.  <br>Switching bolts plus annual disassembly, cleaning and greasing has<br>prevented propagation of wear.  The bolt that attaches to the nose gear<br>gets replaced every few years.  The metal tangs will wear groves in the<br>bolt over time if left unattended, even if a close tolerance bolt is<br>used - more surface area is needed
 on those tangs.  By periodically<br>replacing this bolt, the two pieces will tend not to chew each other up.<br>This is not an ideal solution but it has worked well for nine years and<br>1000+ hours.  Hopefully your excessive wear in only 100 hours is an<br>anomaly.  A redesign of this joint would certainly ease the maintenance<br>burden and could guarantee a better fit right from the start.  Keep us<br>posted on your findings.<br>Chris<br><br><br><br>Chris Zavatson<br>N91CZ<br>360std<br>www.N91CZ.com<br><br><br>--<br>For archives and unsub http://mail.lancaironline.net/lists/lml/<br></blockquote><br><p>&#32;

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<a href="http://us.rd.yahoo.com/evt=49678/*http://smallbusiness.yahoo.com/domains/?p=BESTDEAL"> Get your own web address.</a><br> Have a HUGE year through <a href="
http://us.rd.yahoo.com/evt=49678/*http://smallbusiness.yahoo.com/domains/?p=BESTDEAL">Yahoo! Small Business.</a>
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