1993 Lincoln Continental Brake Service (ONLINE REPAIR MANUALS)

Whenever new brake components are installed in the hydraulic system, it is recommended that the entire hydraulic system be thoroughly flushed with clean brake fluid.

It may sometime become necessary to flush out the system due to the presence of mineral oil, kerosene, gasoline, etc., which will cause swelling of rubber piston cups and valves so they become inoperative. The procedure is as follows:

Flushing is...

On vehicles equipped with anti-lock brakes refer to appropriate "Anti-Lock Brakes".

Complaints about power brake operation should be handled as if two separate systems exist. Check for faults in the hydraulic system first. If it is satisfactory, start inspecting the power brake circuit. For a quick check of proper power unit operation, press the brake pedal firmly and then start the engine. The pedal should fall away slightly and less pressure should be needed to maintain the pedal in any position.

Another check begins with installation of a suitable pressure gauge in the brake hydr...

Pressure bleeding is recommended for all hydraulic disc brake systems.

The disc brake hydraulic system can be bled manually or with pressure bleeding equipment. The brake pedal will require more pumping and frequent checking of fluid level in master cylinder during bleeding operation.

Do not use brake fluid drained from the hydraulic system when bleeding the brakes. Be sure the disc brake pistons are returned to their normal positions and the shoe and lining assemblies are properly seated. Before driving the vehicle, check brake operation to be sure a firm pedal has been obtain...

PRE-TEST CHECKS

• Verify parking brake is completely released. If parking brake is applied, "Brake" lamp will be illuminated.
• Check brake fluid. As fluid level drops, red "Brake" lamp will illuminate. If fluid level continues to fall, amber "Check Anti-Lock Brake" lamp will illuminate and anti-lock function will be inhibited.
• Verify all of the following connectors are properly connected and in good operating condition:
• 55 pin connector of the computer module.
• 19 pin c...

Disc brake service is extremely critical due to the close tolerances required in machining the brake disc to ensure proper brake operation.

Maintaining close control of the shape of the rubbing surfaces is necessary to prevent brake roughness. In addition, the surface finish must be non-directional and maintained at a micro-inch finish. This is necessary to avoid pulls and erratic performance and promote long lining life and equal lining wear of both the left and right brakes.

Do not attempt to refinish the rubbing surfaces unless precision equipment...

BRAKE ROUGHNESS

The most common cause of brake chatter on disc brakes is a variation in thickness of the disc. If roughness or vibration is encountered during highway operation or if pedal pumping is experienced at low speeds, the disc may have excessive thickness variation. To check for this condition, measure the disc at 12 points with a micrometer at a radius approximately one inch from the edge of the disc. If thickness measurements vary by more t...