I have a Case 850B highlight, about 1980 vintage. The last couple times I have used it I have had real slow hydraulics on both the bucket and boom. They start off kind of slow. I have to give it full throttle to work. Later on, once everything warms up, they are almost worthless. I pulled the cover off to get a look at the main control valves. I can hear some fluid going through it while stationary, but cannot confirm which lines. I have checked and all the spools move freely.
I am not completely sure how this system works. Could the pressure relief valve be opening? The parts list off the Case website does not show a pressure relief valve of any kind in the system. If so, where would I find it to check it. Tomorrow I hope to check hydraulic pressure in the system, once I buy an appropriate gauge. Also, what pressure should I expect in the system?
I am not completely sure how this system works. Could the pressure relief valve be opening? The parts list off the Case website does not show a pressure relief valve of any kind in the system. If so, where would I find it to check it. Tomorrow I hope to check hydraulic pressure in the system, once I buy an appropriate gauge. Also, what pressure should I expect in the system?