I have just bought one of these machines with the more common upper belt tensioner. I had no idea it was so old but it was mechanically not bad condition. It needed a replacement drive belt and chain, and clutch bearings replaced, it had a worn sinter bearing, not needle bearing which I replaced. It has a 5hp Mitsubishi motor, probably not original, that needed the carburettor jets cleaned. The rear right alloy wheel, opposite to the chain drive has been welded at the keyway and has worn the axle keyway and key a bit and needs replacement along with the wheel. The deck has been home made from 3mm steel plate, reasonably well done, but makes a lot of noise when mowing from sticks and stones. I reduced the engine revving to minimise the need for drive clutch slipping. I adjusted the governing and eliminated dwell to ensure more response. The motor maybe under powered but seems Okay. Looking at the mower listed by Mudrock74 it looks in great condition, the lower belt tension design looks original, I just wonder if the person repairing it has put the foot linkage lever on the wrong side at the drive clutch. It looks a nice design variation of a classic machine. It would be nice to have a parts list. I found a Greenfield company website that listed all models of their ride on mowers and these models were not listed, however I assumed they just stopped supporting them. The basic design has remained perhaps unique to Greenfield even after the vertical engines became common.
