Vacuum Brake Booster: Service and Repair

1. Disconnect booster pushrod from brake pedal.
2. Remove vacuum hose from check valve.
3. Remove nuts and washers securing master cylinder to booster unit, then separate master cylinder from booster unit. Do not disconnect brake lines from master cylinder.
4. Remove booster unit to firewall attaching nuts and remove booster unit.
5. Reverse procedure to install.