GolfAddict
Veteran Member
Did you check the manual? I don't have a BX, but the manual for my B something about pinning the MMM in the up position to the tractor. There are vertical brackets on the mower which should meet up to brackets on the underside of the tractor to pin the mower in place. then the 3ph lift arms are free to move without dropping the mower. Obviously have to drop it to mow.
At least that's how it sounded in the manual. Just read it, haven't done it, and may be wrong/ not applicable to BXs.
G/L
Yes, on the BX you just raise the MMM all the way up, move the mowing height control knob to the "TOP" position, and the mower will lock up and leave the 3pt free to move.
But you can't as easily lock the 3pt and move the MMM. You can do it, but you have to disconnect the link arms from the lift arms and pin the link arms to the bracket on the frame that is made for that, as Chris mentioned above. Then the lower arms will just hang up there in place.
Edit: TripleR beat me to it.