There are other chemicals people use to loosen up parts, you can search the board for some names. Others use heat, either from a hair dryer or heat gun, to loosen old oil. If you use heat, do NOT apply the "if some is good more is better" principle, as I did recently on a machine by being in a hurry and setting the heat gun to "High"; all I did was burn the old oil in place...set off the smoke alarm in the garage too, if that tells you anything.
You machine should be simple enough in its mechanisms that once it's loosened up completely and thoroughly lubricated it should turn several revolutions/cycles easily by giving the hand wheel a good spin.