They have to be rotated using special wind back tool[availiable from good motor factors]ONLY do this onced the hbrake cble has been slackend off,and the caliper lever has been pulled to off position.once pads in,manually operate caliper lever to advance piston/pads to clamp disc.ONLY THEN,refit hbrake cble and adjust free play.Failure to do this will result in poor/nonexistant handbrake,and eventual caliper failure.
caine
July 2008