Power Brake Unit Replace

1. Remove vacuum check valve.
2. If brake booster and master cylinder are being removed as an assembly, disconnect hydraulic lines and cover openings in master cylinder and lines to avoid entry of dirt. If only brake booster is to be removed, remove master cylinder retaining nuts and position master cylinder aside. Be careful not to bend or kink hydraulic lines.
3. Remove clevis pin retainer from brake pedal.
4. Remove brake booster retaining nuts and remove brake booster.
5. Reverse procedure to install.