Brake problem

Hallihallo,
I have a problem again and hope for your help.
I have the rear bream disks and coverings, dust protection cuffs etc. changed and the brake calipers completely disassembled again built together and very important, the brake calipers as described in the Rep. guide are ventilated.
After that everything was built together again and as described in the Rep. guide the Bram force regulator re-set. Before the brakes only unfortunately not vented this time according to regulations, I Trollo kicked the brake pedal a few times without!!! to run the engine!! The brake pedal has of course fallen down and I could no longer put up any pressure. Now, my questions.
In the Rep.-LF, this is to be done before setting the hand brake a basic adjustment of the brake force regulator.
To do this, lay 6mm drills between roller and spring and once press brake pedal. Question: Does the car have to stand on the wheels or do the wheels have to be free-hanging/suspensioned?? In the case of vehicles with a level, the vehicle must be on the ground. With vehicles without a level too? I'm not talking about setting the brake force regulator with the 11mm drill!! There must be the wheels springed out I know that too!! I'm talking about the basic attitude!!!
So, the brakes are now ventilated, I have now set the brake force regulator without!! the wheels are springing out brake fluid is OK but, the car brakes only right in the front, far too little in the rear and I have far too little pedal pressure with running engine: I can't pump the system in, therefore, actually can't have any air inside.
Maybe you know what that can be? Master brake cylinder? Pressure memory?
Thank you in advance, Martin from Berlin