Contents: Disc brakes ↓ Drum brakes ↓ Checking the vacuum booster ↓ Checking and adjusting the handbrake ↓
Raise the car and remove the wheels.
Disc brakes
1. The pads can be checked through the window in the caliper (indicated by the arrow).
2. Measure the thickness (A) of the friction linings, and if the thickness is less than that specified in subsection 2.1, then replace the pads.
4. If there is any doubt about the normal condition of the linings, the pads should be removed.
5. At the same time, check the condition of the disk. Measure the thickness of the disk and check the surface condition. If the thickness is less than the norm, replace the disk. Minor surface defects are removed by grinding, replace a heavily worn disk.
6. Check for fluid leakage from the hose in the indicated place (arrow) and the brake hydraulic tubes. Check the tightness of the connections. Eliminate any defects found immediately.
Drum brakes
1. Remove the drums (see subsection 8.6).
2. Check the thickness of the friction linings. If their thickness (or distance to rivet heads) less than 1.6 mm, or there are traces of oiling or serious damage, then replace the pads.
3. Check the condition of the springs and the clearance adjuster between the pads and drums.
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4. Check for fluid leakage from the wheel cylinder by bending back the dust cover. If a leak is detected, replace the cylinder.
5. Check the condition of the drums. Sand down minor defects with sandpaper, sharpen the drums if necessary.
6. Install all removed parts and lower the vehicle. Tighten the wheel nuts to the specified torque.
Checking the vacuum booster
1. With the engine not running, press the brake pedal several times; the brake pedal travel should not change.
2. Press the pedal and start the engine, all the time. After the engine starts, the pedal should move forward a little.
3. Press the brake pedal and stop the engine. The pedal should remain in its position for about 30 seconds.
4. Start the engine again, stop it after 1 minute and press the pedal several times. The pedal travel should decrease with each press.
5. If the operation of the vacuum booster differs from that described above, then the vacuum booster in this case must be replaced (see subsection 8.13).
Checking and adjusting the handbrake
1. Move the transmission lever to neutral. Apply moderate force to the handbrake lever and count the number of clicks of the lever's full travel. If the number of clicks is not correct, the handbrake needs to be adjusted.
2. Check the operation of the handbrake by parking the car on a steep slope. The adjustment procedure is described in subsection 8.11.