Brake pads require replacement when the linings are worn out (the minimum permissible thickness of friction linings is 2.0 mm), the linings are not firmly connected to the base, the working surfaces are oily, or there are deep grooves or chips.
WARNING: Replace the front brake pads only as a set of 4 (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 the worn pads with new ones, the level will rise.
You will need: a 7 mm Allen key, a lug wrench, and a large screwdriver.
1. Loosen the left front wheel mounting nuts and place wheel chocks under the rear wheels.
Use a jack to lift the front of the car, place it on reliable supports and remove the left front wheel.
2. Slide the outer pad spring retainer forward into the caliper holes…
3….and remove the retainer.
4. Using a screwdriver, pry off the cover of the protective sleeve of the lower guide pin…
5….remove the cover.
6. Turn out the lower guide pin…
7….and remove it from the shoe guide hole.
8. Similarly, unscrew and remove the second guide pin.
9. Remove the caliper together with the inner brake pad from the pad guide, making sure that the brake hose is not stretched or twisted…
10….and remove the inner brake shoe by removing its spring retainer from the piston cavity.
11. Remove the outer shoe by pulling it out of the guide grooves.
NOTE: Pay attention to the markings on the brake pads. Purchase new pads with the same markings.
12. Inspect the outer shoe spring retainer; replace if the retainer is severely deformed or corroded.
13. Press down the piston of the working cylinder using adjustable pliers.
USEFUL TIP: Whenever you replace the brake pads, be sure to check the condition of the protective plastic bushings of the guide pins, 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.
If the guide pin protective bushings are damaged or their covers do not fit into the bushing holes, replace the protective bushings.
14. Install the front brake pads in the reverse order of removal. To prevent the caliper guide pins from loosening, lubricate their threads with anaerobic thread locker before installation.
15. Press the brake pedal several times to bring the brake pads to the disc.
16. Install the wheel.
17. Similarly, replace the brake pads of the right wheel brake mechanism.
18. Check and, if necessary, restore the brake fluid level in the master cylinder reservoir.
USEFUL TIP: 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 original. Brake discs also wear out, and new pads touch them only with their edges, practically not braking.
Choose a quiet street or a driveway without cars and brake smoothly several times so that the pads are ground in and begin to fit over the entire surface. At the same time, evaluate the effectiveness 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.
(For more information, please visit the specified website fordbook.ru)