Remove the retaining springs and locating pins for the brake pads.

Fig 1: Identifying Retaining Springs And Brake Pad Pins

Courtesy of VOLVO CARS OF NORTH AMERICA.

Remove: 

• the retaining spring (3) carefully so that it does not deform
• the protective caps (1) from the two locating pins (2)
• the locating pins, use hex socket 7 mm.