Hi there, I have a Komatsu FD20-11 forklift which refuses to move. Got progressively worse to the point where it would move at initial start up, but stopped moving after a couple of minutes. I have checked the oil level in the torqflow transmission, cleaned the strainer and checked pressures at the test ports, the only port that gave an intermittent pressure reading was the reverse port, only 20 psi and it was not constant. The truck did try to move when I recorded the intermittent pressure. I have pulled the motor (Isuzu) as I want to check the oil pump. The torque converter refuses to come off the transmission input shaft, am I missing something? Does it just pull off, or is it retained somehow? Any assistance regarding checking the torque converter and torqflow oil pump would be appreciated, thanks