Hi guys, i've had a couple of greenfields and the first one i had used to get stuck in forward, very similar to the description here, turned out after MUCH swearing, bashing, banging, removing of the drive system that one of the pressure springs in between the small and large forward drive pulleys was bad and it eventually got stuck in forward and wouldnt come oout, hence the removal of the drive system. the spring got twisted up and would not disengage the drive. VERY DANGEROUS depending on where you are driving and how steep etc. I removed the spring and put another in and replaced some of the shimms, all good. I found that i had to oil between the small corked plates and the centre bearing every so often to keep the corked plates and the centre bearing free to slide across the axle and back to correct position. push corked plate outwards to the big one, Drop some oil on axle between small plate and bearing, let it come back to centre or push it back if need be and work it across again and back till it slides well, do the same with the other side (DON'T get oil on the plates, just the axle) I found i had to do this esp whilst/after cutting in dusty - sandy areas. i suppose in reality if you oil this spot it will COLLECT dust sand etc but thats what i did with mine and it worked.
Just some input for you...
Gary
