Quick Question - Rebuilding stock brake calipers

[B96v6]

Hi, everyone. I'm currently rebuilding a set of stock brake calipers for my 240 and i've hit a snag. I got the rear pistons started on the thread and screwed about halfway down, but it seems like the emergency brake mechanism is keeping me from screwing the piston all the way down. Does anyone know how I can release the mechanism so I can finish putting my calipers back together? Any help would be appreciated. Thanks!

B96v6

[twitchy]

make sure the swing arm is moved to the position where your ebrake is disengaged