I know you said that you are not going to mow. For others who may be reading this thread, however, I will include the following information.
The MMMs for the
B2630 and
B3030 are not "suspended" decks. They are "floating" decks, which is the same thing as "ground contact" decks. This is just like the FEL bucket having its full weight (but no hydraulic downpressure) on the ground when in the "float" position. The full weight of the deck is designed to sit on the deck wheels. Adjustments for height are done to the deck wheels and the full weight is supposed to sit on the deck wheels. MMMs with suspended decks allow for height adjustment to be made by running the MMM while part to all of the weight is suspended from the lift linkage. The tractor has a MMM position control knob just below the operator's seat. (This is totally different than the 3ph position control being referred to otherwise). This knob allows the MMM to be lowered to a preset yet partially elevated position. The deck will go no lower than the dial setting. I am under the impression that tractors with the floating/ground contact MMMs do not have this position control knob. Some TBN members have mentioned that they drilled holes in the deck and used chain to suspend the deck at a desired height to overcome this. Some owners prefer the floating deck, stating that it follows ground contour better. Others have stated that in soft sod the deck wheels make ruts due to the high pounds per square inch on the small wheels.
All of the BX series, and B series tractors with the numbers XX00, have the "suspended" deck MMM. The tractor has the stop knob, and the MMM cannot drift below that stop. This allows precision cutting while the deck is in the air and the anti-scalp wheels only touch the ground when necessary to prevent scalping. The deck can, however, be lowered so that the full weight is on the wheels.
I am unsure, offhand, which MMM the XX20 series uses. I am sure someone else will pitch in with that information.
The ground contact deck is the one thing that kept me from trading my
BX2200 for a
B3030 back when I had enough income to do it.