Bill,
Some comments on mowing with the B6100D...
The "D" in your model number indicates a 4wd gear drive tractor (like my B7100D).
Like my B7100D, there are two shortcomings with the B6100D when it comes to mowing..."Live PTO" and "Position Control".
PTO: The B6100D does not have a live PTO, which means that every time you depress the clutch to change gears you simultaneously disengage the PTO driven equipment. When releasing the clutch you start the tractor and PTO equipment simultaneously. If you mow in wide open areas this is no problem. If you have to go back-and-forwards frequently or if you have to slow down to make turns then you will quickly become frustrated with the B6100D's mowing capablity.
Position Control: On most "rotary mowers" the cutting height is controlled by the 3-point lift arm height. The lift mechanism on the B6100D will allow you to position the lift arms anywhere you want (between full up and full down) but once you find a satisfactory cutting height you may have difficulty finding that position again once you have to change it; therefore, consistant cutting heights will be difficult. Older 3-point finish mowers are the same way but newer finish mowers have 4 wheels that control cutting height so the lack of position control is not a problem.
Lack of live PTO is the number one reason that I upgraded to the
B2150 tractor. The lack of available FEL was the second significant reason. The lack of position control was inconvenient but would not have forced an upgrade for me. I will point out that my
B7100 is such a good tractor that I haven't been able to force myself to get rid of it.
Kelvin