Sienna 1998-1999

Brake Pads

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Removal & Installation





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Fig. Exploded view of the rear disc brake components-single and dual piston-Previa

  1. Raise and safely support the rear of the vehicle.
  2.  
  3. Remove the rear wheels and temporarily fasten the rotor disc with the hub nuts.
  4.  
  5. Hold the sliding pin on the bottom of the caliper and loosen the installation bolt.
  6.  
  7. Remove the lower installation bolt.
  8.  
  9. Lift up the caliper and suspend it securely. Do not remove the upper installation bolt.
  10.  
  11. Remove the following parts:

    The 2 anti-squeal springs.
     
    The 2 brake pads.
     
    The 4 anti-squeal shims.
     
    The 4 pad support plates.
     

  12.  

To install:

  1. Install the pad support plates.
  2.  
  3. Install a pad wear indicator plate to the pad. Install the anti-squeal shims and support plates to each pad.
    NOTE
    It recommended that a suitable anti-squeal compound (available at your local parts house) be applied to both sides of the inner anti-squeal shim.

  4.  
  5. Draw out a small amount of brake fluid from the brake reservoir. Press in the caliper piston with a suitable tool.
  6.  
  7. Press the brake piston in carefully so the boot will not become wedged.
  8.  
  9. Install the 2 pads so that the wear indicator plate is facing upward. Do not allow oil or grease to get in the rubbing face of the pads.
  10.  
  11. Lower and install the caliper. Torque the sliding main pin to 25 ft. lbs. (34 Nm).
    NOTE
    When installing the sliding main pin, be careful that the plug installed in the torque plate does not come loose.

  12.  
  13. Install the rear wheels and lower the vehicle.
  14.  
  15. Check the fluid level in the master cylinder and add as necessary. Be sure to pump the brake pedal a few times before road-testing the vehicle.
  16.  

 
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