I have acquired a Case 2012 TR320 that was described as having several hydraulic problems, after some investigation it looks to me like electronic problems. I will just focus on one but adding external power to the solenoids made them all work as they should.
Tilt down is very slow, shows approx 450 psi and stops when contacts the ground. (will not lift front of machine off the ground) When I add an external power source to bring the working voltage to between 6.5 to 8 volts it operates fast and lifts the machine. The working voltage to the solenoids from the UCM that I have checked are in the 5.25 to 5.5 volt range.
This brings me to the question. Is the UCM providing the correct voltage 5 to 5.5 volts or should it be higher? It appears to take at least 6.5V to make things work.
Tilt down is very slow, shows approx 450 psi and stops when contacts the ground. (will not lift front of machine off the ground) When I add an external power source to bring the working voltage to between 6.5 to 8 volts it operates fast and lifts the machine. The working voltage to the solenoids from the UCM that I have checked are in the 5.25 to 5.5 volt range.
This brings me to the question. Is the UCM providing the correct voltage 5 to 5.5 volts or should it be higher? It appears to take at least 6.5V to make things work.