Do you have the brake fluid reservoir cap off? That helps. And I can't remember whether you have to use a allen key on the back of the piston to draw it in or if you can just use a c-clamp.
Theres and allan key on the back of the caliper to draw it in, no need to have the resi. open, just draw it back with the allan key its fiarly simple, just remember to re-adjust the e-brake, when you get it back together.
