Posted by Russ D. on April 05, 2009 at 11:50:35 from (4.229.195.184):
I have been restoring a Farmall C and am now working on the Touch-Control Hydraulic system. Here is the problem; When I move the Rt. touch-control lever forward, the outer Rockshaft arms move forward as expected, but when I move the Rt. touch-control lever back (toward the driver), the outer Rockshaft arms do not move back (as they should). I AM able to move the outer Rockshaft arms back by moving the left touch-control lever forward which moves the inner Rockshaft arms forward and then, at the end of their forward movement, will move the outer Rockshaft arms back.
The same thing happens with the inner Rockshaft arms - when the left control lever is moved forward, the inner arms will move forward but the only way to get them to move back is to move the right touch-control lever forward which will, again, move the outer arms forward and at the end of their movement, move the inner arms back. I"ve taken the complete hydraulic system apart 3-4 times, have replaced the "pressure regulator valve piston", replaced the pump, and have made numerous adjustments to the stop clips. I have also purchased the Touch-Control Serviceman"s Handbook, GSS-1024, but have had no luck resolving the problem.
Any help that anyone can provide would be greatly appreciated!
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