Inspection and Replacement
Warning: Never use an air hose or dry brush to clean brake components. Use a vacuum cleaner to avoid inhaling brake dust.
1. Block the front wheels, loosen the rear wheel nuts slightly, support the rear of the vehicle on safe stands, then remove the rear wheels.
2. Release the parking brake and remove the brake mechanism protection.
3. First remove the brake hose clamp bolt from the longitudinal rod, then remove the two brake mechanism mounting bolts and the brake mechanism from the bracket.
Attention:
- Clean the outside of the brake assembly thoroughly to prevent dust and dirt from getting inside.
- Secure the brake mechanism with a piece of wire so that it does not hang on the brake hose.
Note: Check the hoses and axle boots for damage or wear.
4. Remove the outer shoe plate, shoes and shoe holders
5. Using calipers, measure the thickness of each brake lining.
Brake lining thickness:
- Standard: 7.0 - 8.0 mm
- Operational value: 1.6 mm
Note: The measurement does not include the thickness of the pad mounting plate.
6. Clean the brake mechanism thoroughly; remove any rust and check for any grooves or cracks.
7. Check the brake disc for damage or cracks.
8. Make sure the pad holders are installed in the correct positions.
9. Apply grease to the points indicated by the arrows in the figure.
Note: Use the pad grease included in the pad kit or M77 grease (Molikot) and apply a thin layer of grease to the designated points.
- Piston tip and inner shoe contact surface
- Brake shoe and bracket contact surface
- Shoe plate and outer shoe contact surface
- The shoe plate and the contact surface of the brake housing
10. Install the brake pads and outer pad plate onto the brake mechanism bracket
Warning
- When reusing brake pads, always install the brake pads in their original position to prevent loss of brake effectiveness.
- Dirty brake discs or pads reduce stopping power. Remove grease from discs and pads.
Note: Install the inner pad with the wear indicator facing down.
11. Turn the brake piston clockwise into place in the cylinder, then align the slot in the piston with the ledge on the inner shoe by turning the piston back.
Note: Coat the dust boot with rubber grease to prevent the piston dust boot from twisting. If the piston dust boot is twisted, pull it out until it fits properly.
12. Install the brake hose clamp onto the trailing arm.
13. Install and tighten the brake mechanism mounting bolts.
14. Install the brake mechanism protection.
15. After installation, check for leaks in the hose and joints and connections of the line and tighten if necessary.
16. Press the brake pedal several times to make sure the brakes work, then test while driving the vehicle.
Note: Applying the brakes may require more pedal travel immediately after replacing the pads as a set. A few pumps of the brake pedal will restore normal pedal travel.
Checking the rear disc
The procedure for checking the rear brake disc is similar to the procedure for checking the front brake disc.
Brake disc runout:
- Operational value: 0.10 mm
- Max. turning limit: 8.0 mm
Brake disc thickness:
- Standard: 8.9-9.1 mm
- Max. turning limit: 8.0 mm
- Parallelism of disk planes: 0.015 mm
(The article was taken from the website «hondabook.ru»)