Hand/Parking Brake Problem

Hello again guy's.

Today i changed my discs and pads as they was getting to worn,but one problem! the brakes work fine but my hand/parking brake will not work at all even if i pull it all the way up,it worked ok before.

I am aware of the nut at the back of the calliper to bring the piston back but how do you set it for new brakes so the hand/parking brake works? i thought it was self adjusting?

any help would be great guy's thanks.

Gogboy.

[Mazda RX-7 SA]

Hello.

Are you talking about Xedos 6 or 9?

Greetings.