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From: randy snarr <randylsnarr@yahoo.com>
Subject: Re: [LML] Re: 235/320/360 gear dump valve idea
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Thanks for the info David...

David Lowry <dave@edt.com> wrote:       This is exactly how the Legacy gear system is  designed.
  
 
With the way the hydraulic system is currently    designed, you equalize the pressure on the high and low sides when it is    opened. For those of us who have pressure gauges, you can see that you can    have significant pressure on the system even when the valve is opened. I want    to be able to not only equalize the pressure between the high and low sides of    the hydraulic system with the dump valve but also release the pressure on both    sides.

Today I purchased a 3 way valve to do just that. The idea     is to open the valve  connecting  the high and low sides and also    releasing the pressure back to the tank.
I will most likely run a low    pressure line like nylaflow back to the pump and make spin up a custom fitting    on the lathe out of aluminum to go into the dipstick hole and terminate the    return line there. I will make a needle dipstick checker that will screw into    the same fitting for checking fluid level.
If you wanted to do it the easy    way, you could always just dump the low pressure line out the belly of the    airplane onto the ground. It would take very little fluid to drop the pressure    and there would be no need to deal with connecting the low pressure fluid line    to the tank.


       
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Thanks for the info David...<br><br><b><i>David Lowry &lt;dave@edt.com&gt;</i></b> wrote:<blockquote class="replbq" style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;">   <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <meta content="MSHTML 6.00.6000.16587" name="GENERATOR"> <style></style>  <div><font face="Arial" size="2">This is exactly how the Legacy gear system&nbsp;is  designed.</font></div> <div><font face="Arial" size="2"></font>&nbsp;</div> <blockquote style="border-left: 2px solid rgb(0, 0, 0); padding-right: 0px; padding-left: 5px; margin-left: 5px; margin-right: 0px;"><font face="Arial" size="2"></font><br>With the way the hydraulic system is currently    designed, you equalize the pressure on the high and low sides when it is    opened. For those of us who have pressure gauges, you can see that you can    have significant pressure on the system even when the valve is opened. I want    to be able to not
 only equalize the pressure between the high and low sides of    the hydraulic system with the dump valve but also release the pressure on both    sides.<br><br>Today I purchased a 3 way valve to do just that. The idea&nbsp;    is to open the valve&nbsp; connecting&nbsp; the high and low sides and also    releasing the pressure back to the tank.<br>I will most likely run a low    pressure line like nylaflow back to the pump and make spin up a custom fitting    on the lathe out of aluminum to go into the dipstick hole and terminate the    return line there. I will make a needle dipstick checker that will screw into    the same fitting for checking fluid level.<br>If you wanted to do it the easy    way, you could always just dump the low pressure line out the belly of the    airplane onto the ground. It would take very little fluid to drop the pressure    and there would be no need to deal with connecting the low pressure fluid line    to the
 tank.<br></blockquote></blockquote><br><p>&#32;
      <hr size=1>Be a better friend, newshound, and 
know-it-all with Yahoo! Mobile. <a href="http://us.rd.yahoo.com/evt=51733/*http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ "> Try it now.</a>
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