have a 1989 JCB 3CX. Was in 2nd gear going forwards in very soft soil so was hard going. Transmission just stopped working. Have no forward or reverse, just dead. Checked the oil level. seems OK. Changed the oil filter to the transmission. Checked the solonoids and there is 12v at the solonoids. Brakes not binding. Engine runs freely and indicates no load. Any ideas?

dave s, June 2024