July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Front Disc Brake: Disassembly

WARNING: Do not place your fingers in front of piston.

CAUTION: Do not scratch or score cylinder wall.

Push out piston with dust seal with compressed air.
Remove piston seal with a suitable tool.

Fig 1: Pushing Out Piston With Compressed Air
Courtesy of NISSAN MOTOR CO., U.S.A.