I am bringing a '63 M602 back to life. I have it running and have ridden it around the yard a bit. I am chasing down some hydraulic leaks and need some advice. I have drained and filled the reservoir with new hydraulic fluid. The tractor has power steering, 3 point hitch and 2 sets of hydraulic outlets. The 3 point works as it should - the right set of outlets works as it should - the left outlet works fine one direction but is very labored in the opposite direction. I can find a spot where it returns, but does so very slowly. Reversing the hoses reverses the problem. The power steering works when turning right, but does not work much when turning left. First of all - are the two issues related. Second - where do I start to find a solution to either or both problems. Any suggestions will be appreciated.