The steering wheel is held in place on the Massey Ferguson 35, Ferguson FE35 and Ferguson TO35 with a single nut and washer.  However, after removing the nut and washer is is often hard to loosen the wheel.

The shaft that the steering wheel fastens to is tapered, so it is often necessary to use a tool to pull it off.  Massey Ferguson provide Service Tool MF.250 for this task.  It is possible to adapt any pulley drawer for this purpose in a manner similar to the sketch below.

Once the steering wheel has shifted from the tapered shaft it will come away with ease.