Removal (Hydraulic Assist Servo)
CAUTION:
DO NOT
open lines to hydraulic servo until system pressure has been released. System operates at minimum pressure of 435 psi (30 bar). Never step on brake pedal when master cylinder is removed from hydraulic servo.
With engine off, pump brake pedal 20 times to relieve system pressure. Remove master cylinder from hydraulic brake servo. Disconnect pressure and return lines at servo unit. Remove push rod clevis pin. Remove self-locking mounting bolts. Remove servo unit together with gasket. See Fig 1 .