diff lock

I am trying to get familiar with the operations of my new hydrostatic 1E.25, which I believe is almost the same as the 1825E The diff lock lever only travels about 1/2" when I step on it. Maybe it is engaged, I'm not sure. So, I read the manual and it says to stop the tractor before engaging...

...apparently. I.e. only one wheel spins when "engaged". Where do I look, or can I, to find out what the issue might be? B3030

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...

I have a 2021 CK3510SE HST. The darn diff lock lever below the left side of my seat feels stuck. It's been that way in the three months that I've owned the tractor. I've stepped on it, pushed on it by hand, tried it in gear, tried it in neutral and tried it after rocking back and forth a bit...