CONVERSION SYSTEM FOR ZERO TURN LAWN EQUIPMENT
A drive wheel and equipment attachment combination for self-propelled hydro-static wheel drive lawn care equipment platforms that converts rear two-wheel drive zero turn equipment with a center mower deck to a four-wheel drive with a universal front implement mount lawncare equipment platform
1 . A four-wheel drive conversion for use with zero turn two-wheel drive lawn equipment including,
an equipment frame, an engine, rear drive wheels, front caster wheels and a mower deck,
the four-wheel drive conversion comprising,
a replacement front frame, a pair of chain drive rear wheel powered transfer assemblies and a pair of front drive wheel assemblies on said respective replacement front frame in place of the caster wheels.
2 . The four-wheel drive conversion for use with a zero turn two-wheel drive lawn equipment set forth in claim 1 wherein said replacement front frame comprises, a pair of parallel spaced extension frame elements, a cross support frame element in communication therewith and equipment support brackets extending from said cross support frame element.
3 . The four-wheel drive conversion set forth in claim 1 wherein said chain drive rear wheel power transfer conversion assembly comprises, spindle receiving hubs on said respective rear and front wheel pairs,
chain receiving sprocket fittings on said respective rear drive wheel and said front drive wheel assembly, sprocket splines registerably received within said wheel sprocket fittings and said spline receiving hubs,
a power transfer drive chain extending between said chain receiving sprocket fittings,
a chain adjustment idler sprocket between said respective chain receiving sprocket fittings.
4 . The four-wheel drive conversion set forth in claim 3 wherein said pair of chain drive rear wheel pairs transfer assemblies further comprises,
sprocket receiving bearing assemblies on respective ends of an elongated frame extending there between equipment frame engagement mounts extending therefrom for said elongated frame.