S10 Pickup, Sonoma 2000-2004

Brake Shoes

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Adjustment



  1. Adjust the brakes as follows:
    1. Remove the knockout area in the backing plate, behind the adjuster assembly.
    2.  
    3. Ensure the parking brake system is adjusted properly with no tension on the cables or parking brake lever. The tops of the shoes should be firmly seated against the upper spring retaining anchor, if not as specified, loosen the parking brake cables.
    4.  
    5. Install the drum and turn the brake adjuster until the wheels can just be turned by hand.
    6.  
    7. Then, back the adjuster off 24 notches. No brake drag should be felt after 12 notches.
    8.  
    9. Install an adjusting hole plug in the backing plate to prevent dirt and moisture from entering.
    10.  

  2.  

Removal & Installation




CAUTION
Dust and dirt accumulating on brake parts during normal use may contain asbestos fibers from production or aftermarket brake linings. Breathing excessive concentrations of asbestos fibers can cause serious bodily harm. Exercise care when servicing brake parts. Do not sand or grind brake lining unless equipment used is designed to contain the dust residue. Do not clean brake parts with compressed air or by dry brushing. Cleaning should be done by dampening the brake components with a fine mist of water, then wiping the brake components clean with a dampened cloth. Dispose of cloth and all residue containing asbestos fibers in an impermeable container with the appropriate label. Follow practices prescribed by the Occupational Safety and Health Administration (OSHA) and the Environmental Protection Agency (EPA) for the handling, processing, and disposing of dust or debris that may contain asbestos fibers.

  1. Remove or disconnect the following:

    Wheel and tire assembly
     
    Brake drum
     
    Return springs from the brake shoes
     
    Shoe guide
     
    Hold-down springs and pins
     
    Actuator lever and pivot
     
    Lever return spring
     
    Actuator link
     
    Parking brake strut and spring
     
    Parking brake lever
     
    Brake shoes and the adjuster assembly

    Click image to see an enlarged view

    Fig. Exploded view of the drum brake components

     

  2.  

To install:

  1. Lubricate the contact points on the backing plate and the adjuster with lithium grease.
  2.  
  3. Install or connect the following:

    Parking brake lever, adjusting screw and spring assembly
     
    Shoe assembly onto the backing plate
     
    Parking brake lever, strut and strut spring
     
    Actuator lever and lever pivot
     
    Actuator link
     
    Lever spring, the hold-down pins and springs
     
    Shoe guide
     
    Return springs
     
    Brake drum in position
     

  4.  
  5. Adjust the brakes.
  6.  
  7. Readjust the parking brake cable as necessary.
  8.  
  9. Install the wheel and tire assemblies.
  10.  
  11. Refill the master cylinder and pump pedal to attain full brake pedal before Road-testing the vehicle.
  12.  

 
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