Liberty 2WD V6-3.7L (2008)
Vacuum Brake Booster: Service and Repair
Power Brake Booster - Installation
LEFT HAND DRIVE (LHD)
1. Align and position booster on the dash panel.
2. Install booster mounting nuts (1). Tighten nuts just enough to hold booster in place.
NOTE: Lubricate the pedal pin with Mopar multi-mileage grease before installation.
3. Slide booster push rod onto the brake pedal (2). Then secure push rod to pedal pin with retaining clip (3).
4. Tighten booster mounting nuts (1) to 25 Nm (220 in. lbs.).
5. Install a new brake lamp switch and reconnect the electrical connector.
6. Install the knee blocker, See: Body and Frame/Interior Moulding / Trim/Dashboard / Instrument Panel/Service and Repair/Steering Column
Opening Cover - Installation.
7. If original master cylinder is being installed, check condition of seal at rear of master cylinder. Replace seal if cut, or torn.
8. Clean cylinder mounting surface of brake booster. Use shop towel wetted with brake cleaner for this purpose. Dirt, grease, or similar materials will
prevent proper cylinder seating and could result in vacuum leak.
9. Align and install master cylinder on the booster studs. Install mounting nuts and tighten to 25 Nm (220 in. lbs.).
10. Connect vacuum hose to booster check valve (1).
11. Remount the HCU. Tighten bracket mounting nuts to 14 Nm (125 in. lbs.).
12. Connect and secure the brake lines (4) to HCU or junction block and master cylinder. Start all brake line fittings by hand to avoid cross threading.
13. Connect the wire to fluid level switch (3) at the bottom of the reservoir (2).
14. Fill and bleed base brake system, See: Brake Bleeding.
15. Verify proper brake operation before moving vehicle.
