ISUZU Amigo/Pick-ups/Rodeo/Trooper 1981-1996

Brake Shoes

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See Figure 1



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Fig. Fig. 1: Duo-Servo type brake shoe assembly

The only models equipped with separate parking brake shoes are those models equipped with rear disc brakes (Duo-Servo Brake or DSB system). On these models, the parking brake shoes are installed inside the brake disc hat'' housing.

REMOVAL & INSTALLATION




CAUTION
Brake shoes may contain asbestos, which has been determined to be a cancer causing agent. Never clean the brake surfaces with compressed air! Avoid inhaling any dust from any brake surface! When cleaning brake surfaces, use a commercially available brake cleaning fluid.

  1. Raise and support the rear of the vehicle safely on jackstands.
  2.  
  3. Remove the rear wheel and tire assemblies.
  4.  
  5. Matchmark and remove the brake discs.
  6.  

Always work on one side at a time. This will allow for visual comparison if you run into removal or installation problems.

  1. Remove the shoe return springs and actuator link, then remove the shoe guide from the stud at the top of the backing plate.
  2.  

Special brake spring tools are available from most auto supply stores, which will ease the removal and installation of the return and hold-down springs.

  1. Remove the shoe hold-down springs and pins.
  2.  
  3. Remove the actuator lever, pivot and return spring.
  4.  
  5. Remove the brake strut and strut spring, then remove the brake lever from the shoe (it may be easier to wait until the shoe is being removed to separate the lever).
  6.  
  7. Remove the brake shoes along with the adjuster screw and spring assembly.
  8.  
  9. Clean and inspect all of the brake parts. Replace parts as needed
  10.  
  11. Inspect the axle seal for leakage and replace, if necessary.
  12.  

To install:
  1. Inspect the shoes for nicks or burrs, and correct as necessary. Lightly lubricate the backing plate contact points, brake cable, levers and adjusting screws with a white lithium brake grease. Do not get any grease on the braking surface, or stopping performance will be affected.
  2.  
  3. Install the adjusting screw assembly and spring to both shoes, then position the shoes to the backing plate.
  4.  
  5. Install the parking brake lever to the secondary shoe.
  6.  
  7. Install the strut spring to the parking brake strut, then position the strut.
  8.  
  9. Install the actuator lever, lever pivot and the link. Install the lever return spring.
  10.  
  11. Install the shoe hold-down pins and springs.
  12.  
  13. Install the shoe guide over the stud at the top of the backing plate.
  14.  
  15. Install the return springs.
  16.  
  17. Lightly sandpaper the shoes to make sure they are clean, then align and install the disc.
  18.  
  19. Install the rear tire and wheel assemblies.
  20.  
  21. Adjust the brakes as described in this section.
  22.  
  23. Remove the jackstands and carefully lower the vehicle, then road test the vehicle.
  24.  

ADJUSTMENT



  1. Raise and support the rear of the vehicle safely on jackstands.
  2.  
  3. Using a punch and a hammer on the rear of the backing plates, knock out the lanced metal areas near the star wheel assemblies on each plate. The metal areas may already have been removed and covered with rubber adjustment plugs; if so, remove the plugs by grasping and pulling out with a pair of pliers.
  4.  

After knocking out the lanced metal areas from the backing plate, the wheels must be removed and all of the metal pieces discarded, then the wheels should be reinstalled for adjustment.

  1. Insert a suitable brake adjustment tool such as J-4735 or equivalent, into the backing plate slots and engage the lowest possible tooth on the star wheel. Move the end of the brake tool downward to move the star wheel upward and expand the adjusting screw. Repeat this operation until the wheels can barely be turned by hand. This is a position immediately before the brakes lock.
  2.  

The brake drag should be equal at both wheels.

  1. Back off the adjusting screws 20-24 notches (clicks). By the time you have backed off the adjustment 12 clicks, the brakes should have no drag. If a heavy drag is still present, the parking brake cable is likely in need of adjustment.
  2.  
  3. Make sure both sides of the brakes are properly adjusted. When backing off the brakes on the other side, the adjusting lever must be backed off the same number of turns to prevent side-to-side brake pull.
  4.  
  5. After the brakes are adjusted, install a rubber cover into each of the the backing plate slots.
  6.  
  7. Remove the jackstands, and lower the vehicle.
  8.  

Pump the brake pedal to seat the brake shoes before moving the vehicle.

  1. Before driving, make several stops while backing the vehicle, to fully equalize the adjustment.
  2.  
  3. Road test the vehicle.
  4.  

 
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