You might look at,

 

http://www.automationdirect.com/adc/Shopping/Catalog/Sensors_-z-_Encoders/Pressure_Sensors_-a-_Pressure_Gauges/Pressure_Switches/PSD25-0P-5800H

 

Solid state and adjustable, don’t forget the matching cable

 

-----Original Message-----
From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Craig Berland.
Sent: Monday, January 30, 2012 10:53 AM
To: lml@lancaironline.net
Subject: [LML] IV-P Hydraulic Pressure Switch

 

A few weeks ago when returning home my main landing gear failed to extend.  I have determined the pressure switch that controls the hydraulic pump relay has failed. The kit supplied switch has a minimum temperature rating of -22 deg F.  Since my switch failed with about 110 hrs on it, has anybody found a better switch?

On a personal note: When building N7VG, the only thing my wife wanted was her own personal landing gear lights. She was all over the fact that the mains did not lock down. The emergency pump worked and all is well.

Craig Berland

IV-P N7VG