New holland 1411 discbine

[Cress27]

My dad has a 1411 discbine and it will not throw hay into a wind row on the left side of the mower. We have 2 of these cutters one dose fine but the other just throws the hay straight on the grown on the left side. Any ideas?

 

[JW IN VA]

Don't have a discbine yet but,if it was my Haybine,I'd check the windrow shields or the top baffle to see if they are the same on both sides/ends.