Automatic incubator 9/12 eggs

I have the same times Janoel incubator equipped with 8 chicken eggs and started to make my first trial run.
If the eggs are not too big fit in 9 eggs, but when they are a bit bigger I would equip with only 6 eggs, so the eggs are not too tight because of the function of the turning device in the frame.
Provided by e-mail I got a German translation of the manual after purchase sent, which was unfortunately very incomprehensible translated into German.
I searched for this device with Google in poultry forums and was also in a forum a better guide in PDF format for download.
After 3 days, we saw the Schieren with the LED lamp even at 3 eggs typical cobweb pattern, after another 3 days you could see that the 3 eggs further developed and the others were 5 apparently not fertilized, which I then also remote.
Time on the 21st day then hatched the chicks on Good Friday and are in good health and beep Fidel.