andrewelsh Posted July 7, 2012 Share Posted July 7, 2012 Hey guys Our rudder utility pressure is reading 2800psi with flaps down. The EDHP's on #1 and #2 are both putting out 3000psi. It's only 200psi but I need to find out why we're losing that pressure. I've tried changing out the transmitter with no luck (zeroed correctly). Thought there may be an issue with the diverter valve not opening fully - still no luck. All the other transmitters on the left hand side all read approx 3000psi with a clear drop at the rudder. Any ideas would be great. Quote Link to comment Share on other sites More sharing options...
bischoffm Posted July 7, 2012 Share Posted July 7, 2012 Try changing the snubber just before the pressure transmitter, also get a direct read gauge in front of both. Quote Link to comment Share on other sites More sharing options...
Ben Legere Posted July 12, 2012 Share Posted July 12, 2012 Pull the elevator off the stops. 200psi is nothing to worry about, the elevator pack bypasses at a rate of 3gpm when on the stops and uses the same supply line as the rudder. Up speed 2 engines and it will be fine, with the ground test valve tied you will get a drop. If the drop persists with the elevators off the stop then you have something to look into... Quote Link to comment Share on other sites More sharing options...
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