Oscar Pacheco Posted May 13, 2022 Report Share Posted May 13, 2022 hello, if i fail any hyd pump i get EICAS msg hyd 3 lo press not hyd 3B pump msg, is this correct?, if i switch any hyd pump from on to off i get hyd 1 lo press EICAS msg before the hyd press gets below 1800 psi, is this correct? Oscar. Quote Link to comment Share on other sites More sharing options...
Pils Posted May 13, 2022 Report Share Posted May 13, 2022 Can you provide screenshots so we can better understand the scenarios, please? Quote Link to comment Share on other sites More sharing options...
Oscar Pacheco Posted May 14, 2022 Author Report Share Posted May 14, 2022 scenario 1 hyd check. scenario 2 hyd 3A pump failure. Quote Link to comment Share on other sites More sharing options...
sunake Posted May 14, 2022 Report Share Posted May 14, 2022 Yes it is correct. From my understanding, the message is triggered when the sensors detect a loss in output pressure from the pump and not a drop in system pressure. It's done this way to quickly tell you that you're about to lose the hydraulic pressure so get ready. Quote Link to comment Share on other sites More sharing options...
Oscar Pacheco Posted May 14, 2022 Author Report Share Posted May 14, 2022 hello sunake thanks for your replay, on the expanded normal procedures item 20 you can read "After a period of time the HYD 1 and HYD 2 LO PRESS caution messages will reappear - this is normal, the systems naturally loose pressure over time." what i understand is the hyd 3 lo press msg only is display when press is < 1800 psi. Quote Link to comment Share on other sites More sharing options...
sunake Posted May 14, 2022 Report Share Posted May 14, 2022 Yeah I know but I'm just giving back the explanation that was given by the devs a couple of times this was mentioned. Quote Link to comment Share on other sites More sharing options...
Oscar Pacheco Posted May 14, 2022 Author Report Share Posted May 14, 2022 oh, ok , thank you. Quote Link to comment Share on other sites More sharing options...
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