Front Disc Rotor: Removal

Lift up the vehicle, and then remove the front wheels.
Remove the caliper body assembly from the front axle housing.
1. Remove the bolt from the brake hose bracket.
2. Remove the mounting bolt, and remove the caliper body assembly.
  
  Fig 1: Locating Caliper Body Assembly And Brake Hose Bracket Mounting Bolts
  Courtesy of SUBARU OF AMERICA, INC.
3. Prepare wiring harnesses etc. to be discarded, and suspend the caliper body assembly from the shock absorber with the harnesses.
  
  Fig 2: Securing Caliper Body Assembly
  Courtesy of SUBARU OF AMERICA, INC.
Remove the front disc rotor.
NOTE: When the disc rotor is difficult to be removed from the front hub unit bearing, screw in 8 mm (0.31 in) bolt to the threaded part of the disc rotor (A), and remove the disc rotor.

Fig 3: Identifying Front Disc Rotor And Mounting Screws
Courtesy of SUBARU OF AMERICA, INC.