my b2150 was droped off today.i took around my property,the first thing i could tell the 4 cylender is much smoother and less noisy than the 3 cylender.ive owned 2 new tractors a massey 1433 and kioti ck25 which i got rid of due to $$.both were nice solid tractors no problems at all.this tractor is a 1994 and im superised how comfortable it is and this is my first hydrostat.which is very nice.does anyone know how to pin up the belly mower in the up postion?and how to pin the mounting braket when the mower is not on the tractor?