Thanks for the info guys.The outlet is about an inch below the top ,brass securing ring on left hand side and configured so that the threaded internal port
is pointing down and parallel to the cylinder.As such,if a screw were
fitted it would not actually enter the inside of the cylinder body.
The hydraulic company who did the overhaul are now saying that the fault is not their concern & want payment from me.(although they have not seen the truck in action)My customer isn't going to pay until it's right so any information from a Hyster manual would be great.
Hard to get information in the UK since Barlows closed