Hi all I have a Yale GLP16AF E2425 MY1995, and have noticed we have a small leak, that deposits an oily patch overnight. My problem is trying to find where the leak is coming from the hydraulic oil which sits by the battery is full, engine oil is full, but the transmission fluid seems to only about half way full, and I think there may be a little water leak. if any one could point me in the right direction or has a service manual so I can at least work out what I'm looking at that would be great.