Precautions For Brake System

Use brake fluid "DOT 3".
Never reuse drained brake fluid.
Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is splashed on painted areas, wash it away with water immediately.
Never use mineral oils such as gasoline or kerosene. They will ruin rubber parts of hydraulic system.
Use flare nut wrench when removing and installing brake tubes.

Fig 1: Displaying Use Of Flare Nut Wrench
Courtesy of NISSAN MOTOR CO., U.S.A.
Always torque brake lines when installing.
Before working, turn the ignition switch OFF and disconnect the connectors for the ABS actuator and control module or the battery terminals.
Burnish the brake contact surfaces after refinishing or replacing drums or rotors, after replacing pads or linings, or if a soft pedal occurs at very low mileage.
WARNING: Clean brakes with a vacuum dust collector to minimize risk of health hazard from powder caused by friction.