Discussion Starter · #1 ·
hey guys, I've been reading here for some time and decided to sign up. I own a CR9070 with about 320 sep. hours. Last week I had an "out of nowhere" hydraulic noise in the steering that within a minute got very loud when turning the wheel and when I got to the end of my field to lift the header it abruptly jumped a little then locked up...followed by the steering locking up. I idled down, checked for leaks thinking I was out of oil and no leaks, and I was not low on hydraulic oil in either resivoir. After that episode it did not show up for the rest of the day. The next day, 1 hour into harvesting it did the same thing, noisy steering and noisy header lift. Again, just once that day. The next morning I start the combine and imediately get "control pressure low" and it shuts down the engine. My control pressure was 244. The dealer came out, took out the adjustment valve or whatever for the control pressure, cleaned it out, put it back together and it was an immediate fix. 500 psi, so we adjusted it to 330 and away I went....one hour that same day into harvesting here comes the steering noise, only it doesn't seem to want to go away, and seems to get worse the more I use the header lift. Next day it was cooler outside, and I restrained from using my header lift only when needed, and when I did I went up and down slowly with it. Went all day without hardly a peep. We are cutting sunflowers with my almost new 30 foot rigid head with seedeater pans with the rotating drum. Same thing next day, minimal use of header....hardly ever a noise all day. We are sure we are not getting air in the system, and does not appear water either. Today we drove around our field with the machine and head engaged but not cutting crop for over an hour up and down turning around almost constant without making it act up....what is going on? Anyone ever had this? Why on warm days would it be worse. We did replace the needed filters, but I'm convinced on a warm day it would act up again. Oh ya, and while we were driving around after the inline hydraulic filter change(the other filters where changed the day the adjuster stuck) we drove around for 45 minutes again trying to make it act up, followed by my engine fan bearings going out...took out most belts and both bearings. not a fun job to take out. We had to pull that whole bracket off so they can press the bearings out. But anyway, any help is appreciated and thanks to everyone on here for all the great pics and videos on all colored sites! Thanks!