lml@lancaironline.net Mailing List Archive

My technique is to carefully increase the high pressure nitrogen bottle, constantly shaking the wing to avoid a slight bind in the shaft that would permit a sudden jolt overpressering and damaging the seal. I find it takes about 250-400 psi to raise the shaft. I raise it about 4 inches on the Legacy and slightly overfill it so I can final adjust it with tapping the pin on the schrader valve to release pressure. The goal is to get both main even at about 4 inchs. Shake out the wing tips to verify height.

On Wed, Aug 5, 2009 at 8:55 AM, Bob B. <rbelshe@comcast.net> wrote:

Pete,

This is the method I use:
. Airplane on the ground, empty
. Add nitrogen to strut until it is fully extended
. Remove the filler hose
. Using a pin punch and a small hammer, make very light taps on the
Schrader valve stem until it drops to about 1/2" below fully extended.
. There is some hysteresis, so between taps pull down on the prop (or lift
the tail) to see the actual position.

Bob Belshe
Moraga, CA
Lancair 235/320
http://home.comcast.net/~rbelshe/

-----Original Message-----
From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Peter
Field
Sent: Wednesday, August 05, 2009 7:34 AM
To: lml@lancaironline.net
Subject: [LML] Strut Pressure

Does anyone know what the nitrogen pressure ought to be on the nose landing
gear strut of a Lancair 360?

Pete Field
LNC2, N775DX

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