Automatic gearbox fill

[David-S]

Hello Friends,
I am coming to the end of a full renovation of my 1981 W123 230TE auto estate. My gearbox/torque convertor have been drained and a new filter/oil pan seal fitted, my problem is, that according to the Mercedes Assistance Center the quantity of oil for my gearbox is 6.1Ltrs after a rebuild or 4.8Ltrs for drain/refill.I have filled the gearbox to the cold setting in my manual which states 30mm below the low mark on the dip stick, but the amount of oil which has gone in is only 1.1Ltrs. It was suggested to run the engine and place the shift selector in each drive possition and top up as nessesary, but I am afraid with so little oil in damage may be done.If it is nessesary to rotate the gearbox to circulate the oil can this be achieved by turning the gearbox by rotating the engine by hand, so as not to put the gearbox under strain.All suggestions welcome,thankyou for listening.

David