Look at the parts diagram --caseih.com-- follow the instructions to search for parts. The pump needs to be taken out to service it. One item not mentioned is if the lever has loosened on the shaft, it might cause the problem. THe most likely is a pressure relief valve stuck open (a piece of dirt) these pumps would not be damaged by 90 wt, but in cold weather they might have operational reluctance. Some use ready rod (allthread or threaded rod) to lower the pump after all the elbows and the lever are removed. JimN
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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