David Dan

That was the problem; the tap was stuck and wasn't moving as it should. The stress works now. Thank you, Jase! You do a great job! 👍🏻 David

I am back. The stress box works as it should and I get the earth when the greenlight is on. I can hear the solenoid valve working but still the rollers are always moving even when the solenoid valve has no power. Could be a problem with the hidraulic circuit?

Thank you Jase! You are really helpful I will try this week and come with an update. David.

Yes, I didn't try to measure with the green light on, I hope this is it and there is no problem with the stress box. The solenoid valve doesn't close the oil because it may need to be cleaned. I changed the oil and the old one was very bad, so something might have blocked it. I do hear the valve working if I power it manually. I will be back with an update, thank you a lot for your help. :D

Hi all. My dad bought an older machine. I have found that the stress system gets the engine speed from the alternator via a green cable (which was cut for some reason and the stress light was just flashing red even with the engine on). After I have put the cable back, the light was working accordingly, red flashing when ignition switch and oil bypass pushed, a yellowish to red color when engine was idle and green when the engine revs. The problem is that the selenoid valve circuit (purple cable) is not getting closed on red light when the engine loses speed. Do you know what could it be?