Brake pads require replacement when the linings are worn out (minimum permissible thickness of friction linings - 2 mm), poor connection of the pads to the base, oiling of the working surfaces, and also in the presence of deep grooves or chips.
Warning: Replace the front brake pads only as a set - 4 pcs. (two on each side).
Before replacing the brake pads, check the brake fluid level in the master cylinder reservoir. If the level is close to the "MAX" mark, it is necessary to pump out some of the fluid (for example, with a medical syringe or a rubber bulb), because after replacing worn pads with new ones the level will rise.
1. Remove the right front wheel.
2. Remove the bolt securing the lower guide pin of the caliper.
3. Lift the caliper up.
4. Remove the inner...
5. ...and outer brake pads.
6. Remove the lower and upper retaining springs from the shoe guide.
To reduce the vibration of the brake pads when the wheels rotate, retaining plates are installed in the grooves of the pad guide. When replacing the pads, replace them with new ones.
7. Press the piston into the working cylinder using adjustable pliers.
Helpful Hints: Whenever you replace the brake pads, be sure to check the condition of the protective rubber boots of the guide pin, as well as the movement of the caliper relative to the brake pad guide. If movement is difficult, lubricate the caliper guide pins with grease. To do this...
... remove the guide pin, lubricate it with grease, and then lubricate the protective cover of the pin with grease. Lubricate the second guide pin and its cover in the same way.
Install the guide pins in the reverse order of removal.
Replace the guide pin boots if they are hardened, deformed or torn.
8. Install the retaining springs, brake shoes into the guides and other parts in the reverse order of removal. To prevent the caliper guide pin mounting bolt from loosening, lubricate its threads with anaerobic thread locker before installation.
9. Similarly, replace the brake pads of the left front wheel brake mechanism.
10. Check and, if necessary, restore the brake fluid level in the master cylinder reservoir.
Helpful tips: After replacing worn brake pads with new ones, do not rush to drive on busy highways. It is possible that at the first intensive braking you will be unpleasantly surprised by the low efficiency of the brakes, although the pads were installed branded. Brake discs also wear out, and new pads touch them only with the edges, practically without braking. Choose a quiet street or a passage without cars and brake smoothly several times so that the pads rub in and begin to fit over the entire surface. At the same time, evaluate the efficiency of the brakes.
Try not to brake sharply for at least the first 100 km. If the brake pads are too hot, the top layer of their linings will burn and the brakes will not be as effective as possible for a long time.