JWR - thanks for the feedback. Since I have only had the unit for a few weeks I contacted the previous owner and apparently you have to manually hold the DIFF lever down while applying gas pedal so while I still had it jacked up I tried it and it worked. Crazy that someone who is stuck has to...
Hi All - I have a 2005 Massey 1528 with the HST and a 1520 FEL. I recently purchased the tractor and have been combing through the unit, everything is seemingly good but when I tried to engage the DIFF I could not tell if it was working... the lever (right above the reverse pedal) seemed to be...