I recently rebuilt my SA touch control and ordered the kit from IH. It was working but leaking around the pistons quite a bit. The rebuild went good, put it back together and installed it on the tractor and made the adjustments per IH manual. It works fine except with this problem, when I turn off the engine, the hydraulics bleeds down pretty fast, fast enough to see it lowering. Which o ring causes this?
My gut feeling is the o rings on the control rods. In the kit, all the o rings were black like the original ones except the 4 for the control rods which were blue (two on each rod). I'm suspicious of these because when I rebuilt it, I dropped each o ring in hydraulic fluid before installing them and the blue ones would leave a blue residue on my fingers when I picked them up, the black ones didn't leave any black residue. Suspicious, but trusting IH, I used the o rings anyway but now I suspect them of being the problem.
Last edited by Gerry Powell on Wed Mar 21, 2012 5:03 pm, edited 1 time in total.