older Kasoc versa-drill... chain routing over idlers

[newtooblue]

I just bought a kasco versa-drill ,the one that has the drive chain going to the cultipacker. The cultipacker is not solid from side to side it has a set of wheels behind each drop tube . It has 3 idler pulleys, two are spring loaded and one is fixed but adjustable. The way the chain is routed now the fixed pulley is not used. I need to know how to run the chain for the two different sprocket sizes. Pictures or diagrams would great.
Thanks everyone
Ray