Hi Jim and Phil. Thanks for your replies. The problem is now sorted. Pressurizing the transmission case would have been the last resort. Started off this morning by dropping the manifold about an inch from the pumps using slave bolts. Hoped that adding oil would fill the pipe and that would solve it. Added 3 litres with no sign of the pipe filling. All we did was to raise the oil level in the back end!!!!!! Replaced the manifold and disconnected the outlet pipes and filled them with oil. Started the engine and ran at fast idle. Signs of aerated oil coming from both outlets. We had faint steering with the front jacked up. Slackened the pipes on the steering ram and a lot of air came out. Steering improved and more air out. Slackened the pump outlets again and more air out. Steering would now work with the jack removed. Tried the loader and that worked. Big test, will it move? Big sigh of relief when it moved normally. We must have allowed around 3 litres of aerated oil to come out. It took a long time but we got there in the end. Thanks again. DavidP, South Wales
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