Looking for v belts for a Allen Mayfield 8

Hi,

Just joined the site and hoping that someone could help me. I recently bought an Allen Mayfield 8 pedestrian tractor with the power scythe attachment. Having used it for a couple of hours the blades stopped moving. I quickly traced this to the fact that the v belt driving the blades had shredded. It appears that it should have 2 v belts rather that the single one it came with. Does anyone know the specific size of these v-belts and how you would fit them ?

Thanks in advance

Gary