jack's benz

hi MBWorld! I would like to know where to hookup the 2 big springs found in the rear parking brake of my ML350. I was replacing my rear brake shoes when I removed the rear rotor and saw one of the big springs unhooked on each side. I managed to replace the break shoe and thought that I had hooked the springs on but when I tested, the parking break was too loose (even after adjustments).
I was wondering if anyone had a diagram/ pictiure or knowledge as to where the springs are supposed to be hooked up. thnx!