Warning! Remember that the dust generated during operation of the brake mechanisms may contain asbestos, which is extremely harmful to human health. Never blow off dust with compressed air or inhale it - wear a protective mask or respirator when servicing the mechanisms. Never use gasoline or petroleum-based solvents to wipe brake system components - use only branded cleaning agents or methyl alcohol!
Note: Service the brake assemblies one at a time - the second one can be used as a reference if necessary.
Mirage models up to 1992.
Removal
1. Jack up the car and place it on supports.
2. Remove the rear wheels.
3. Remove the brake drum.
4. Before you begin dismantling the components, try to remember the installation positions of all springs and clamps.
5. Remove the upper tension spring.
6. Remove the spring that secures the shoe to the regulator lever, then remove the regulator assembly.
7. Remove the guide spring retainers and dismantle the brake shoes by disconnecting the parking brake drive cable from the rear.
Installation
1. Thoroughly clean and dry the brake shield, check the smoothness of its protruding contact surfaces - the presence of roughness is fraught with jamming of the shoes.
2. Lubricate the contact surfaces of the shield and the anchor pins of the shoes with lithium grease.
3. Remove and thoroughly clean the remaining brake components. Lubricate the threaded portion of the adjuster wheel with anti-seize sealant and transfer all parts to the new shoe assemblies.
4. Connect the parking brake cable to the appropriate shoe.
5. Secure the shoes to the brake shield and, acting in the reverse order of dismantling, install the brake assembly fastening components.
6. Adjust the shoes so that the brake drum fits onto them with slight resistance (see Section Adjustment of drum brake mechanisms). Install the drum.
7. Screw on the new hub nut and tighten it to the required torque (180 Nm).
8. Install the wheel bearing cover and adjust the rear brake shoes.
Galant and Mirage models since 1993.
Removal
1. Jack up the car and place it on supports.
2. Remove the rear wheels and brake drums (see Section Removal, installation and inspection of the brake drum).
3. Remove the spring that secures the shoe to the regulator lever.
4. Remove the adjusting lever.
5. Remove the automatic regulator assembly.
6. Remove the lower tension spring.
7. Remove the retainers and take out the shoe guide springs.
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8. Remove the upper tension spring.
9. Remove the brake shoes - disconnect the parking brake cable from the actuator lever on the rear shoe.
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10. Remove the parking brake actuator lever from the old shoe.
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Installation
1. Carefully wipe the brake shield and treat the contact surfaces of the thrust projections with special brake grease.
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2. Transfer the parking brake actuator lever to the new shoe assembly (rear) - ensure that the wave washer is installed correctly.
3. Clean the automatic regulator assembly and carefully lubricate its threaded part with special brake grease.
4. Connect the parking brake cable to the rear shoe actuator lever.
5. Transfer the rear shoe assembly to the brake shield and install the guide spring and anchor pin.
6. Proceeding in a similar manner, install the front shoe in its regular place.
7. Place the regulator assembly between the shoes.
8. Install the upper tension spring.
9. Install the lower tension spring.
10. Install the regulator lever.
11. Install the shoe mounting spring to the regulator lever.
12. Install the lever return spring. Adjust the shoes and install the brake drum (see Section Removal, installation and inspection of the brake drum).
13. Proceeding in a similar manner, replace the brake shoes of the opposite wheel.
14. Install the wheels and lower the vehicle to the ground.
[Article reprinted from the website: mitsubishiman]