Breeze, Cirrus, Sebring Convertible and Sedan, Stratus Sedan, 1999-2005

Brake Shoes

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NOTE
Before servicing the vehicle, also refer to the precautions in the beginning of this section.

Adjustment



Unique to vehicles equipped with rear drum brakes is a new fully automatic adjusting mechanism. After resetting the automatic adjuster the initial adjustment procedure must be done prior to driving the vehicle

  1. Be sure parking brake lever is fully released.
  2.  
  3. Fully apply the vehicles service brakes 2 to 3 times by depressing the brake pedal as far as possible.
    1. This will cause the automatic adjuster mechanism to correctly adjust the rear drum brakes.
    2.  

  4.  
  5. Apply and release the park brake lever one time after the service brakes have been correctly adjusted.
  6.  
  7. This procedure has correctly adjusted the vehicle's rear service brakes.

    Click image to see an enlarged view

    Fig. Rear drum brake auto adjuster

  8.  


NOTE
Unique to these vehicles is a fully automatic adjusting mechanism for the rear drum brakes. If the rear brake shoes are replaced it will require the automatic adjuster to be reset. After resetting the automatic adjuster the initial adjustment procedure must be done prior to driving the vehicle.



Click image to see an enlarged view

Fig. Lubricate this surface between quadrant and strut of adjuster mechanism (1) knurled pin (2) automatic self adjuster mechanism (3) strut (4) spring (5) quadrant (6)

  1. Be sure parking brake lever is fully released.
  2.  
  3. Fully apply the vehicles service brakes 2 to 3 times by depressing the brake pedal as far as possible. This will cause the automatic adjuster mechanism to correctly adjust the rear drum brakes.
  4.  
  5. Apply and release the park brake lever one time after the service brakes have been correctly adjusted.
  6.  
  7. This procedure has correctly adjusted the vehicle's rear service brakes
  8.  

Verify the parking brake lever is in the fully released position.

Raise the vehicle.


NOTE
Perform the following steps on each rear drum brake assembly.

  1. Remove the tire and wheel assembly from the vehicle.
  2.  
  3. Remove the brake drum. Refer to Brake Drum removal in this section of this manual.
  4.  
  5. Using a brake shoe gauge, Special Tool C-3919 or equivalent, measure the inside diameter of the brake drum.
    1. Tighten the gauge set-screw at this measurement.

      Click image to see an enlarged view

      Fig. Measuring drum with brake shoe gauge (1)

    2.  

  6.  

Place the other side of the brake shoe gauge on the brake shoes as shown.

Click image to see an enlarged view

Fig. Measuring brake shoes with brake shoe gauge (1)

  1. Adjust the shoe diameter to the setting on the gauge. To adjust the shoe diameter, turn the adjuster-screw star-wheel using a screwdriver inserted through the adjusting hole in the rear of the shoe support plate. Once the tip of the screwdriver contacts the star-wheel teeth, move the handle of tool downward using the support plate as a pivot to adjust the shoes outward.
  2.  
  3. Once the shoe diameter is set, reinstall the brake drum.
  4.  
  5. Turn the drum. A slight drag should be felt while rotating the drum.
  6.  
  7. Install the tire and wheel assembly.
    1. Tighten the wheel mounting nuts to 100 ft. lbs. (135 Nm).
    2.  

  8.  
  9. After adjusting both rear drum brakes, lower the vehicle.
  10.  
  11. Apply and release the parking brake lever one time after the adjustment process is completed so the parking brakes can readjust themselves to the new brake shoe adjustment.
  12.  
  13. Road test vehicle stopping in both forward and reverse directions. Automatic adjuster will continue to adjust brakes as necessary during road test.
  14.  

Removal & Installation



  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Wheel assembly
     
    Brake drum detent (retaining) screw
     
    Drum from the axle
     

  4.  
  5. If difficulty is encountered in removing the drum:
    1. Verify the parking brake is released.
    2.  
    3. Loosen the parking brake cable.
    4.  
    5. Remove the access hole plug from the backing plate and move the parking brake lever until the lever stop rests on the brake shoe.
    6.  
    7. If necessary, turn the adjuster so that it draws in to allow more clearance between the shoe and drum.
      NOTE
      Note the location of all springs and clips for proper reassembly.

    8.  

  6.  
  7. Remove or disconnect the following:

    Shoe-to-lever spring and the adjuster lever
     
    Auto adjuster assembly
     
    Retainer spring
     
    Hold-down springs, washers and pins
     
    Shoe-to-shoe spring
     
    Brake shoes from the backing plate

    Click image to see an enlarged view

    Fig. Exploded view of the drum brake assembly



    Click image to see an enlarged view

    Fig. Opening the retainer clip



    Click image to see an enlarged view

    Fig. Adjusting nut and nut holder

     

  8.  
  9. Using a flat-tipped tool, open up the parking brake lever retaining clip.

    Clip and washer from the pin on the shoe assembly and the shoe from the lever assembly.
     

  10.  

To install:

  1. Thoroughly clean and dry the backing plate. Lubricate the backing plate at the brake shoe contact points.
  2.  
  3. Lubricate backing plate bosses, anchor pin, and parking brake actuating mechanism with a lithium-based grease.
  4.  
  5. Install or connect the following:

    Parking brake lever assembly on the lever pin
     
    Wave washer and a new retaining clip. Use pliers or the like to install the retainer on the pin. If removed, connect the parking brake lever to the parking brake cable and verify that the cable is properly routed.
     

  6.  
  7. Clean and lubricate the adjuster assembly. Make sure the nut-adjuster is drawn all the way to the stop, but the nut must NOT lock firmly at the end of the assembly.

    Brake shoes on the backing plate with the hold-down springs, washers and pins
     
    Shoe-to-shoe spring
     
    Retainer spring
     
    Auto adjuster assembly, the adjuster lever and the shoe-to-lever spring
     

  8.  
  9. Pre-adjust the shoes so the drum slides on with a light drag and install the brake drum.
  10.  
  11. Adjust the rear brake shoes and install the rear wheels.
  12.  
  13. Adjust the parking brake cable.
  14.  
  15. Check for proper brake operation.
  16.  

All vehicles except Sebring Convertible, are equipped with rear wheel, 2 shoe leading/trailing, internal expanding type of drum brakes with automatic self-adjuster mechanisms. The automatic self-adjuster mechanisms used on these vehicles are new designs and function differently than the screw type adjusters used in the past. These new self-adjusters are still actuated each time the vehicles' service brakes are applied. The new adjusters are located directly below the wheel cylinders.

Click image to see an enlarged view

Fig. Varga rear wheel brake assembly (left side shown)-except convertible

  1. Remove the rear wheel assembly.
    1. Locate and remove the rubber plug from the top of the brake support plate (backing plate).
    2.  
    3. Insert a brake adjuster tool or similarly shaped pry tool through the automatic adjuster access hole and engage the teeth on the adjuster quadrant. Then rotate the quadrant so the teeth of the quadrant are moved toward the front of the vehicle. This will back off the adjustment of the rear brake shoes.
    4.  
    5. Continue moving the quadrant toward the front of the vehicle until it stops moving.
    6.  

  2.  
  3. Remove the drum from the hub assembly.
  4.  
  5. Remove the actuating spring from the adjuster mechanism and trailing brake shoe.
  6.  
  7. Remove the upper return spring from the brake shoes.
  8.  
  9. Remove the lower return spring from the brake shoes.
  10.  
  11. Remove the brake shoe retainer and pin attaching the leading brake shoe assembly to the brake support plate.
  12.  
  13. Remove the leading brake shoe and the adjuster mechanism as an assembly from the rear brake support plate. The adjuster mechanism cannot be separated from the leading brake shoe until the brake shoe and the adjuster mechanism is removed from the support plate.
  14.  
  15. Remove the trailing brake shoe retainer and pin attaching the trailing brake shoe assembly to the brake support plate. Remove the trailing brake shoe assembly.
    NOTE
    On this vehicle, the parking brake actuating lever is permanently attached to the trailing brake shoe assembly. Do not attempt to remove it from the original brake shoe assembly or reuse the original actuating lever on a replacement brake shoe assembly. All replacement brake shoe assemblies for this vehicle must have the actuating lever as part of the trailing brake shoe assembly.

  16.  
  17. Remove the parking brake cable from the parking brake lever. Do not remove the lever from the brake shoe.
  18.  
  19. Remove the automatic adjuster mechanism from the brake shoe by fully extending the adjuster and rotate the adjuster out to release from the brake shoe.
  20.  

To inspect:

  1. Thoroughly clean all parts. The brake lining should show contact across the entire width and from heel to toe; otherwise, replace. Clean and inspect the brake support plate and the automatic adjuster mechanism. Be sure the quadrant (toothed part) of the adjuster is free to rotate throughout its entire tooth contact range and is free to slide the full length of its mounting slot. Check the knurled pin. It should be securely attached to the adjuster mechanism and its teeth should be in good condition. If the adjuster is worn or damaged, replace it. If the adjuster is serviceable, lubricate lightly with high-temperature grease between the strut and the quadrant. Check the brake springs. Overheating indications are paint discoloration or distorted end coils. Replace parts as required.
  2.  
  3. Inspect the brake drums for cracks or signs of overheating. Measure the drum run-out and diameter. If not to specification, reface the drum. Run-out should not exceed 0.006 inch (0.15mm). The diameter variation (oval shape) of the drum braking surface must not exceed either 0.0025 inch (0.064mm) in 30 degrees rotation, or 0.0035 inch (0.089mm) in 360 degrees rotation. All brake drums are marked with the maximum allowable brake drum diameter on the face of the drum.
  4.  

To install:

  1. Lubricate the 8 brake shoe contact points with high-temperature grease.
    NOTE
    The trailing brake shoe assemblies used on the rear brakes of this vehicle are unique to the left and right side of the vehicle. Care must be taken to ensure the brake shoes are properly installed in their correct side of the vehicle. When the trailing shoes are properly installed on their correct side of the vehicle, the park brake actuating lever will be positioned under the brake shoe web.

  2.  
  3. Reinstall the parking brake cable onto the parking brake lever and install the trailing brake shoe and attaching pin.
  4.  
  5. Reinstall the automatic self-adjuster on the leading brake shoe by rotating it inward to attach. Install the leading shoe and adjuster assembly to the brake support plate.
  6.  
  7. Make sure the leading brake shoe is squarely seated on the brake support plate shoe contact areas, and install the brake retainer on the retainer pin.
  8.  
  9. Reinstall the lower return spring.
    NOTE
    The upper brake shoe return spring and adjuster mechanism actuating spring are unique to the side of the vehicle they are used on. The springs are colored for identification. The left side springs are green and the right side springs are blue.

  10.  
  11. Reinstall the upper return spring (blue, right side; green, left side) on the leading brake shoe first, then on the trailing brake shoe.
  12.  
  13. Reinstall the self-adjuster spring on the trailing brake shoe first then attach it to the adjuster.
  14.  
  15. Reinstall the rear brake drums.
  16.  
  17. Reinstall the wheel and tire. Torque the lug nuts in a star pattern sequence to about 45 ft. lbs. (61 Nm), then repeat the pattern and final torque to 95-100 ft. lbs. (129-135 Nm).
  18.  
  19. Adjust the rear brakes by depressing the brake pedal. Brake shoe adjustment will occur the first time the brake pedal is depressed, pushing the rear brake shoes against the braking surface of the rear brake drums.
  20.  
  21. Road test vehicle to check for proper brake operation.
  22.  

Convertible

The Sebring Convertible's rear wheel drum brake is a 2-shoe leading/trailing internal expanding type with an automatic self-adjuster mechanism. The automatic self-adjuster mechanism used on this vehicle is the screw type adjuster. The self-adjuster mechanism is actuated each time the vehicle service brakes are applied. Although, in the event that the brake shoes are replaced, it is advisable to make the initial adjustment manually to speed up the initial adjustment time. The initial adjustment procedure must be done prior to driving the vehicle.


NOTE
When removing the rear brake shoes, replace the brake shoes from only one side of the vehicle at a time. This is due to the automatic adjustment feature of the parking brake system. If the brake shoes are removed from both sides of the vehicle at the same time, the automatic adjuster will remove all slack from the parking brake cables, which will make brake shoe installation extremely difficult.

  1. Remove the rear wheel assembly.
    1. Locate and remove the rubber plug from the brake support plate (backing plate).
    2.  
    3. Insert a brake adjuster tool or similarly shaped pry tool through the automatic adjuster access hole and carefully push the adjuster actuating lever out of engagement with the adjuster starwheel. While holding the lever away from the starwheel, insert a second pry tool through the access hole and engage the teeth on the adjuster wheel. Rotate the adjuster wheel upward away from the ground. This will back off the adjustment of the rear brake shoes.
    4.  

  2.  
  3. Remove the drum from the hub assembly.
  4.  
  5. Remove the adjusting lever actuating spring from the leading brake shoe. Remove the automatic adjuster actuating lever from the leading brake shoe.
  6.  
  7. Thread the adjuster starwheel all the way into the adjuster, which will remove all tension from the adjuster.
  8.  
  9. Remove the upper and lower return springs from the brake shoes.
  10.  
  11. Remove the brake shoe hold-down spring and pin attaching the leading brake shoe assembly to the brake support plate.
  12.  
  13. Remove the leading brake shoe from the support plate.
  14.  
  15. Remove the automatic adjuster from the parking brake actuating lever and trailing brake shoe.
  16.  
  17. Remove the retaining clip securing the parking brake actuating lever to the trailing brake shoe.
  18.  
  19. Remove the trailing brake shoe hold-down spring and pin attaching the trailing brake shoe assembly to the brake support plate.
  20.  
  21. Remove the trailing brake shoe from the brake support plate and separate the shoe from the parking brake actuating lever.
  22.  

To inspect:

  1. Clean all parts well. The brake lining should show contact across the entire width and from heel to toe; otherwise, replace. Clean and inspect the brake support plate and the automatic adjuster mechanism. Be sure the adjuster is free to rotate throughout its entire range. If the adjuster is worn or damaged, replace it. If the adjuster is serviceable, lightly lubricate the threaded portion with high-temperature grease. Check the brake springs. Overheating indications are paint discoloration or distorted end coils. Replace parts as required.
  2.  
  3. Inspect the brake drums for cracks or signs of overheating. Measure the drum run-out and diameter. If not to specification, reface the drum. Run-out should not exceed 0.006 inch (0.15mm). The diameter variation (oval shape) of the drum braking surface must not exceed either 0.0025 inch (0.064mm) in 30° rotation, or 0.0035 inch (0.089mm) in 360° rotation. All brake drums are marked with the maximum allowable brake drum diameter on the face of the drum.
  4.  

To install:

  1. Lubricate the 6 brake shoe contact points and the brake shoe anchor points with high-temperature grease.
  2.  
  3. Reinstall the wave washer on the pivot pin of the parking brake actuating lever.
  4.  
  5. Install the trailing brake shoe onto the attaching pin of the parking brake actuating lever.
  6.  
  7. Position the trailing brake shoe onto the brake support plate and be sure the trailing brake shoe is squarely seated on the support plate shoe contact areas and install the brake shoe hold-down spring on the hold-down pin.
  8.  
  9. Reinstall the parking brake actuating lever-to-trailing brake shoe retaining clip.
  10.  
  11. Reinstall the automatic adjuster on the trailing brake shoe and the parking brake actuating lever.
  12.  
  13. Place the leading brake shoe onto the brake support plate in proper position and install the attaching pin and hold-down spring.
  14.  
  15. Reinstall the lower and upper return springs.
  16.  
  17. Reinstall the automatic adjuster actuating lever and spring onto the leading brake shoe.
  18.  
  19. Manually adjust the brake shoes to the furthest adjusted position but not so far as to interfere with the installation of the brake drum.
  20.  
  21. Reinstall the rear brake drums. Check and adjust the brake shoes as necessary.
  22.  
  23. Reinstall the wheel and tire. Torque the lug nuts in a star pattern sequence to about 45 ft. lbs. (61 Nm), then repeat the pattern and final torque to: 100 ft. lbs. (135 Nm).
  24.  
  25. Road test vehicle to check for proper brake operation.
  26.  

 
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