I bought a used JD 570A and when first cranked it automatically turned to the right. I have since rebuilt the steering box and both the left and right cylinders. But now when cranked it stays straight and has power steering to the left but not to the right. Any ideas what else I could try to fix this problem? Thank you.
Welcome to HEF whegefeld . Which type of steering valve do you have ? Multiple housings as below , Or orbital type below
I have the one in the first picture (Fig. 3)
Not hard to rebuild but keep everything clean and check for wear. These things get neglected terribly yet relied upon.
Who rebuilt the valve ? Did you try and bleed the system after installed ? Bleed procedure in screenshot below. .
if the flappers arent adjusted correctly, the steering wont work correctly.