dirtfarmer
Well-Known Member
What form or where can I ask about a JD9630 scraper special tractor that I have hydraulic issues with???
Thank you. What you just told me sheds some light on what's going on.I am not familiar with those units. With that being said, if you have variable speed control of the SCV circuits then the voltage would actually be pulse width modulated. So checking voltage with a meter is out of the question. Most likely would need an oscilloscope to check. If they are on/off solenoids (function moves at one speed only) then voltage can be checked with a meter. I'm guessing they are pulse width. The ohms of the solenoids can be checked. Spec should be 4.3 - 5.5 ohms @ 25*C (77*F).
I only pull a field cultivator with it and sometimes a chisel plow. So the hydraulics just get used for a "full stroke" one way or the other-----up and/or down. There is no constant oil flowing with any of the implements that I pull. such as running a fan or constant down pressure. Thanks for trying to help me out with this deal. Last spring when I was using it, the oil got so hot that it let the plastic hydraulic reservoir squash down and rubbed a hole in the bottom---- made a big mess. haven't got the tractor in useable condition again since. Putting both (2) new hydraulic pumps on it right now plus anything associated with the pumps. The issue I was having with a remote outlet was it's constantly allowing oil to go through it.... and I don't think it should be. Any help is greatly appreciated.I think they are PWM controlled, I believe that's how they'd integrate auto load or GPS on the scraper rigs. Only have a little bit of hands on with the green scraper tractors too, see more red or blue ones.
What sort of implements do you run on it, sometimes certain implements/configurations can cause oil heating issues.