Scenic rear brake motor

Hi,

Have stripped down my scenic 1.6 rear brakes.

Fault was the slider mechanism which splits the cable to each calliper, not the actual motor which had rusted up. To take the unit off I stripped it to get it off obviously.



When I put motor unit and cable back together is there a suggested position for the screw rack in the motor unit or will it self adjust?



Thanks

Richie