Helping a neighbor with a JCB 320T eco tracked one arm side entry 2015 bld date. Quit functioning while using 4 way bucket to clear debris. Engine starts and runs, chg pump shows pressure of 330 psig on service truck tech laptop. tracks and loader arm will not function. zero fuses found bad and he thinks relays "good" haven't tried a new relay swap yet Took my case 580sk and we did our best to lift arm to lock up so we can tilt the cab and look deeper. Tried the manual ball valve and it didn't release.....we did get it to lower from mid travel where it quit. Appreciate any advice I feel like we need to send a signal to activate a solenoid coil.....?
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