Lincoln Nautilus: Hydraulic Brake Actuation / Brake Master Cylinder. Removal and Installation

Removal

NOTICE: Do not spill brake fluid on painted or plastic surfaces or damage to the surface may occur. If brake fluid is spilled onto a painted or plastic surface, immediately wash the surface with water.

NOTE: Removal steps in this procedure may contain installation details.

1. NOTICE: Before removing the master cylinder, relieve the vacuum in the brake booster or the master cylinder O-ring seal may be drawn into the brake booster, causing brake booster failure and increased brake pedal effort.

   Fully apply and release the brake pedal 5 times.
   

1. Remove the battery.
   Refer to: Battery (414-01 Battery, Mounting and Cables, Removal and Installation).
   

1. Disconnect the brake fluid level sensor electrical connector and detach the wiring retainer.
   

1. Disconnect the brake tube fittings.
   Torque: 20 lb.ft (27.5 Nm)

1. Remove the nuts and the brake master cylinder. Discard the nuts.
   Torque: 20 lb.ft (27.6 Nm)

1. Make sure that the master cylinder-to-booster seal is removed with the master cylinder.
   

Installation

1. To install, reverse the removal procedure.
   

1. • If a new brake master cylinder has been installed, bleed the master cylinder.
     Refer to: Component Bleeding (206-00 Brake System - General Information, General Procedures).
     
   • If the brake master cylinder was removed to access other components, bleed the brake system.
     Refer to: Brake System Pressure Bleeding (206-00 Brake System - General Information, General Procedures).