I have a 22 BX 2380-1. I know how to keep the belly mower locked up. I know about the pressure relief knob to control the speed the mower and 3 point hitch lower. I know there is no down pressure on the 3 point hitch. Is there a way to stop the 3 point hitch from lowering while still raising and lowering the belly mower? Do I just use a strap or chain to physically secure it up?