| 1. Press a brake pedal at the standing car not less than 5 times. Then at the pressed pedal start the engine. Now the pedal should be felt under a foot. |
| 2. Otherwise disconnect a vacuum hose at the amplifier of a brake and start the engine. Put a finger to the end of a vacuum hose and check up, whether there is a vacuum. |
| 3. If the vacuum is not present: Check up tightness of a hose. If necessary replace it. Tighten fastenings of all collars. |
| 4. If the vacuum is available: Measure value of vacuum. If necessary replace the amplifier (work HUNDRED). |