Table of contents: Checking the wear of the brake shoe… ↓ Checking for leaks and condition of… ↓ Checking the wear of the rear brake… ↓ Checking the brake fluid level ↓ Replacing brake fluid ↓
Perform the following procedures at the intervals given in "Technical maintenance" at the beginning of the guide.
Checking the wear of the brake shoe lining
1. Check the thickness of the front brake shoe linings as described in Chapter 3.
2. On models with rear disc brakes, also check the rear brake shoe linings as described in Chapter 10.
Checking for leaks and condition of hydraulic lines
3. Support the vehicle in a raised position, remove all wheels.
4. Check for leaks and damage to brake system pipes and hoses. Check for corrosion on brake system pipes.
5. Check the condition of the flexible hoses. Make sure they are not twisted or touching the body or surrounding parts.
6. Check the condition and leaks from the master cylinder, booster unit, pressure regulator, calipers, wheel cylinders and, where ABS is installed, the hydraulic modulator. Check the reliability of the mounting nuts and bolts.
Checking the wear of the rear brake shoe linings
7. On models with rear drum brakes, check the lining thickness as described in Chapter 7.
Checking the brake fluid level
8. Check that the brake fluid level in the transparent reservoir is between the "MIN" and "MAX" marks. Note that a slight drop in the level is permissible as the brake pads wear. If the level drops rapidly in a short time, or if it reaches the "MIN" mark, it is necessary to check for leaks in the hydraulic line.
9. After repairing or bleeding the system, top up the level to the "MAX" mark using the recommended fluid.
Replacing brake fluid
10. Remove the filler cap from the tank and suck out the liquid with a syringe or pipette.
11. Attach a bleeder tube to each bleeder nipple as described in Chapter 17, and pump the brake pedal until all fluid is out of the system. Tighten the bleeder screws before continuing.
12. Fill the system with new brake fluid, following the instructions Chapter 17.
13. On models with a manual transmission, it is recommended to simultaneously bleed the clutch hydraulic line, otherwise the new fluid will be contaminated with the old one.