Rotor Removed

Under normal circumstances, the only time adjustment is required is when the shoes are replaced, removed for access to other parts, or when one or both rotors are replaced.

Adjustment can be made with a standard brake gauge or with adjusting tool. Adjustment is performed with the complete brake assembly installed on the backing plate.

1. Raise and support the vehicle. Refer to HOISTING, STANDARD PROCEDURE .
2. Remove the tire and wheel.
3. Remove the rotor. Refer to ROTOR, BRAKE, REMOVAL .
   Fig 1: Measuring Park Brake Drum Diameter

   Courtesy of CHRYSLER GROUP, LLC
   NOTE:

   When measuring the brake drum diameter, the diameter should be measured in the center of the area in which the park brake shoes contact the surface of the brake drum.

   Fig 2: Reading Park Brake Drum Diameter

   Courtesy of CHRYSLER GROUP, LLC

   1 - SPECIAL TOOL C-3919

   2 - RULER

4. Using Brake Shoes Gauge (special tool #C-3919, Gauge, Brake Shoes) (1), or equivalent, accurately  measure the inside diameter of the park brake drum portion of the rotor.
5. Using a ruler (2) that reads in 64th of an inch, accurately read the measurement of the inside diameter of the park brake drum from the special tool.
   Fig 3: Setting Gauge To Park Brake Shoe Measurement

   Courtesy of CHRYSLER GROUP, LLC

   1 - RULER

   2 - SPECIAL TOOL C-3919

6. Reduce the inside diameter measurement of the brake drum that was taken using Brake Shoes Gauge (special tool #C-3919, Gauge, Brake Shoes) (2) by 1/64 of an inch. Reset Brake Shoes Gauge (special tool #C-3919, Gauge, Brake Shoes) (2) or the equivalent used, so that the outside measurement jaws are set to the reduced measurement.
7. Place Brake Shoes Gauge (special tool #C-3919, Gauge, Brake Shoes) (2), or equivalent over the park brake shoes. The special tool must be located diagonally across at the top of one shoe and bottom of opposite shoe (widest point) of the park brake shoes.
8. Using the star wheel adjuster, adjust the park brake shoes until the lining on the park brake shoes just touches the jaws on the special tool.
9. Repeat step 8 above and measure shoes in both directions.
10. Install the brake rotor over the shoes.
11. Rotate the rotor to verify that the park brake shoes are not dragging on the brake drum. If the park brake shoes are dragging, remove the rotor and back off the star wheel adjuster one notch and recheck for brake shoe drag against the drum. Continue with the previous step until the brake shoes are not dragging on the brake drum.
12. Install the disc brake caliper on the caliper adapter. Refer to CALIPER, DISC BRAKE, INSTALLATION .
13. Install the wheel and tire. Refer to WHEELS, STANDARD PROCEDURE .
14. Remove the supports and lower the vehicle.
    CAUTION:

    Before moving vehicle, pump brake pedal several times to ensure the vehicle has a firm enough pedal to stop the vehicle.

    NOTE:

    After parking brake lining replacement, it is recommended that the parking brake system be conditioned prior to use. This is done by making one stop from 25 mph on dry pavement or concrete using light to moderate force on the parking brake hand lever.

15. Road test the vehicle to ensure proper function of the vehicle's brake system.