If the two large tires can fit on the rack......the rear tire only needs support. The rear tire sits in a bracket by turning is sideways. There is a rear steel bar that goes behind the two large tires that locks the machine in place.
Will get pictures up soon.
But yes.....the Ecolawn is very light....which makes moving it super easy! I'm sure you could modify your PG Rack to fit a Ecolawn.
2013 Ford F450 Super Duty Truck
2010 Exmark Lazer Z 60" deck
2012 ExMark 30" Riding Aerator
2011 John Deere Pro Gator 2020a
2011 Lawn Solution Dual Hyrdo Aerator 24"
2011 Echo Handheld (trimmers to power pruners)
2007 Big Tex 4ft metal high side 7' x 12' Trailer
2012 PJ 7' x 16' Dump Trailer
2014 Vintage 8.5' x 24' Enclosed Trailer
2012 Ecolawn Applicator model 200 Compost Spreader