I have an early (1967) 1020 with open center hydraulics. It's equipped with power steering, but it doesn't work since I've owned it (about 2 years). No power assist at all.
I've removed the ps pump, and it seems to be in good shape, everything tight, but the shop manual indicates there should be a ball in the metering relief valve between the spring and the valve. The removal/repair section mentions checking the ball, but parts diagrams don't show the ball. The diagram for the metering operation does show the ball between the spring and the valve. If anyone has any experience with these ps pumps, any ideas or help would be appreciated.