Have an 864 with a rather strange issue. When you start machine the auxiliary hydraulics are on and if you have something attached such as a brushhog, it starts turning but turns backwards. Leading up to this we replaced a seal on the Hyd control valve and you would think we might have installed 2 hoses backwards but all but 3-4 lines are steel and I cant see where this could have happened. The book really doesn't show where these hoses go to from the control valve, so you could trace. We didnt touch any of the wiring and the plugs are all different so you can not plug in wrong...Anyone have any ideas or have an 863/864 they might be able to photo hose directions?