Neat little trick that would fool anyone who had not driven on before, was to set the rear steering on a bit of lock, then set the hydraulic cocks back to front steer only. Get the novice to move it, he cannot understand why the vehicle is crabbing :-D. To be honest the machine was an abortion, it needed a bit more attention to it before it was taken into service. The wings would break off with vibration, hence why a lot are missing them. The pedal box could be destructed by folding the mast back without sideshifting to the left........at least they gave us plenty of work repairing them.
Richard, could you or someone remind me the uses of the 3 valves. If facing forwards i.e. back to the engine, if my memory serves me correctly, there are 2 (yellow?) valves on the left and 1 (red?) on right. In order to get 4 wheel steer, does one open both yellow and close red or? For 2 wheel steer (front) is it to close rear yellow and open front and again close red. Crab = ?