Sender: <marv@lancaironline.net> (Marvin Kaye)
To: lml
Date: Fri, 24 May 2002 18:27:29 -0400
Message-ID: <redirect-1247311@logan.com>
From: JIMRHER@aol.com
Subject: LNC-IV hydraulic pump 'cycles'
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Yes Fili,
I have about the same thing. I was concerned about the Hyd. Pump light coming 
on about every minute or so and then when I started to pay more attention to 
it I noticed that sometimes it is up to 10 min. I have noticed that it varies 
from time to time for some unknown reason. I have a pressure gauge installed 
in the left gear well so I can look at it before flight. It stays at no less 
than 700 lbs. even after a week. I park it almost always with the flaps down, 
so I don't know if there is any difference if parked with them up. With the 
pump ON it reads about 1050 lbs. and if I stop for 1 or 2 hours the pump 
doesn't even run when I restart. There maybe some bleed back when the flaps 
are up but I don't see why. Recently, another L4P changed his check valve in 
the system to stop some bleed back but I don't know if that helped. Having 
the system pressurized should not hurt anything.

How is the flying going?

Jim Hergert
N6XE, "An Sex Y" L4P