Hello Rainer
Currently we have not yet prepaired a description, we will work to make it asap, however, the step by step pictures are quite intuitive and show the sequence of the pulleys, belts and bearing to assemble one after another.
The yellow arrows mean that once you have put all the belts, pulleys etc… and in the end you put the motor, in order to keep the system with the best tension possible, before to tight the screws, you have to push the motor on the right as much as you can. Then you can screw the screws to the end.After this operation you have to adjust the belt tension.
With regards to the cable blocking issue it’s a bit unlikely that 2 seconds blocking can lead to a mount defect.
However, considering you are in the belts replacement process, in case there is any problem you’ll see and you can correct it while reassembling.If after the reassembling you still detect not satisfactory performance, you can in a second moment tight a bit more the belt tensioner.
We’ll send you via mail a couple of pictures that show ho to adjust the tensioner.
Kind regards
Stefano
Avalon Instruments Team