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From: ByronMFox@aol.com
Message-ID: <0.971383fd.258a7caa@aol.com>
Date: Thu, 16 Dec 1999 12:34:34 EST
Subject: Seeking Hydraulic Pressure Gauge
To: lancair.list@olsusa.com
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Lately, I've noticed that the time taken by the hydraulic power pack to 
repressurize the "down" side of the gear system after 4 or 5 days of sitting 
is excessive.  I timed it yesterday at 50 seconds.  Once pressurized, 
however, the cycling time to raise and lower the gear appears normal, and no 
intermittent pump burping occurs in flight.

Vern at Lancair suggests that I put a pressure gauge on the low pressure side 
of the system to determine if the pressure switch has failed to stop the pump 
when the  pressure reaches 500 psi.  Good thought.  Where, however, can I 
conveniently locate a pressure gauge that will handle 500 - 1500 psi.  The 
A&Ps on my home field don't have anything that goes that high, nor does the 
Aircraft Spruce catalog. So, I'll put the question to this august body 
confident in the knowledge that more than one of you has the answer.

Byron Fox
N3144C


[Reprinted from LML...
>>>
Date: Mon, 07 Dec 1998 14:17:42 -0500
To: lancair.list@olsusa.com
From: Marvin Kaye <marvkaye@olsusa.com>
Subject: Re: Hydraulic pressure gages
X-Mailing-List: lancair.list@olsusa.com

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I did some checking this morning and located some ideal gages for the
hydraulic system...  I found a company in Addison, IL called Kodiak
Controls who has 1000 and 2000 psi gages, 1-1/2" diameter, white face with
black numbering, all stainless steel with a u-clamp and a rear center
1/8npt fitting for $21.70/ea.  The part numbers are 7217U-1.5-8-1000 and
7217U-1.5-8-2000.  You can reach them at 630-629-3733 and tell them you're
building a machine when you place your order <g>.

  <Marv>
<<<
PS... forget about black faces with white numbering... they're special
order only and require a qty of 250 per size to be made.   <Marv>    ]
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