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Home >> Mercury >> 2009 >> Mariner Base, 2.5 7, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 123 (Parking Brake System - Parking Brake & Actuation) >> General Procedures >> Parking Brake Shoe Adjustment

Parking Brake Shoe Adjustment

WARNING: This page is about a different car, the 2009 Mercury Grand Marquis and 2009 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
    WARNING: Shut off the electrical power to the air suspension system prior to hoisting or jacking an air suspension equipped vehicle. Failure to do so may result in unexpected inflation or deflation of the air springs, which may result in shifting of the vehicle during these operations. Failure to follow this instruction may result in serious personal injury.
  1. If equipped, turn the air suspension service switch to the OFF position.
    2. NOTE: Make sure the parking brake is fully released.
  2. Using the release handle, release the parking brake control.
    3. WARNING: Before servicing a vehicle equipped with a fire suppression system, depower the system by following the procedure in FIRE SUPPRESSION SYSTEM article. Failure to follow the instructions may result in serious personal injury.
  3. Remove the wheel and tire. For additional information, refer to WHEELS & TIRES article.
    4. CAUTION: Do not allow the brake caliper and brake pads to hang from the brake hose or damage to the hose may occur.
  4. Remove the 2 brake caliper guide pin bolts and position the caliper and brake pads aside.
    • Support the caliper using mechanic's wire.
    5. NOTE: If the brake disc binds on the rear parking brake shoes, remove the adjustment hole access plug and retract the parking brake shoes using an adjusting tool.
  5. Insert the tool at the end of the access plug slot farthest from the brake caliper. Engage the adjuster and rotate by raising the end of the tool toward the backing plate. Remove the brake disc.
    6. Fig 1: Adjusting Parking Brake Shoes
    GF0013998Courtesy of FORD MOTOR CO.
  6. Inspect the parking brake shoes and drum for wear, damage or oil contamination. Install new components as necessary.
  7. Using a suitable brake adjusting gauge, measure the inside diameter of the drum portion of the rear brake disc. Record the measurement.
  8. Using a suitable brake adjusting gauge, set the rear brake shoe and lining diameter to 0.5 mm (0.020 in) less than the inside diameter of the drum portion of the rear brake disc.
    9. Fig 2: Measuring Across Center Point Of Shoes
    GF0003392Courtesy of FORD MOTOR CO.
  9. Position the brake disc onto the hub.
  10. Position the brake caliper and brake pads onto the anchor plate and install the 2 brake caliper guide pin bolts.
    • Tighten to 25 Nm (18 lb-ft).
  11. Test the parking brake for normal operation.
    12. WARNING: If the vehicle is equipped with a fire suppression system, repower the system. For important safety warnings and procedures, refer to FIRE SUPPRESSION SYSTEM article. Failure to follow these instructions may result in serious personal injury.
  12. If equipped with fire suppression system, repower the system.
  13. If equipped, turn the air suspension service switch to the ON position.
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